99-12623. AP600 Design Certification  

  • [Federal Register Volume 64, Number 97 (Thursday, May 20, 1999)]
    [Proposed Rules]
    [Pages 27626-27647]
    From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
    [FR Doc No: 99-12623]
    
    
    
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    _______________________________________________________________________
    
    Part II
    
    
    
    
    
    Nuclear Regulatory Commission
    
    
    
    
    
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    10 CFR Part 52
    
    
    
    AP600 Design Certification; Proposed Rule
    
    Federal Register / Vol. 64, No. 97 / Thursday, May 20, 1999 / 
    Proposed Rules
    
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    NUCLEAR REGULATORY COMMISSION
    
    10 CFR Part 52
    
    RIN 3150-AG23
    
    
    AP600 Design Certification
    
    AGENCY: Nuclear Regulatory Commission.
    
    ACTION: Proposed rule.
    
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    SUMMARY: The Nuclear Regulatory Commission (NRC or Commission) proposes 
    to amend its regulations to certify the AP600 standard plant design 
    under Subpart B of 10 CFR Part 52. This action is necessary so that 
    applicants or licensees intending to construct and operate an AP600 
    design may do so by referencing the AP600 design certification rule 
    (DCR). This proposed DCR, set out as Appendix C, is nearly identical to 
    the two previously codified DCRs in Appendices A and B of 10 CFR Part 
    52. The applicant for certification of the AP600 design is Westinghouse 
    Electric Company LLC (hereinafter referred to as Westinghouse).
        The public is invited to submit comments on this proposed DCR and 
    the AP600 design control document (DCD) that is incorporated by 
    reference into the DCR. In addition, interested parties may request an 
    informal hearing before an NRC Atomic Safety and Licensing Board, in 
    accordance with 10 CFR 52.51(b), on matters pertaining to this proposed 
    DCR. The NRC also invites the public to submit comments on the 
    environmental assessment for the AP600 design.
    
    DATES: Submit comments by August 3, 1999. Comments received after this 
    date will be considered if it is practical to consider them, but the 
    Commission is only able to ensure consideration for comments received 
    on or before this date. Requests for an informal hearing must be 
    submitted by August 3, 1999.
    
    ADDRESSES: Mail written comments and requests for an informal hearing 
    to: Secretary, U.S. Nuclear Regulatory Commission, Washington, DC 
    20555-0001, Attention: Rulemakings and Adjudications Staff, Mail Stop 
    O-16 C1. Comments may also be delivered to: One White Flint North, 
    11555 Rockville Pike, Rockville, Maryland, between 7:30 am and 4:15 pm 
    on Federal workdays. Copies of comments received, the DCD, and the 
    environmental assessment will be available for examination and copying 
    at the NRC Public Document Room at 2120 L Street NW. (Lower Level), 
    Washington, DC.
        Electronic comments may be provided via the NRC's interactive 
    rulemaking website through the NRC home page [www.nrc.gov]. From the 
    home page, select ``Rulemaking'' from the tool bar at the bottom of the 
    page. The interactive rulemaking website can then be accessed by 
    selecting ``Rulemaking Forum.'' This site provides the ability to 
    upload comments as files [any format], if your web browser supports 
    that function. Contact Ms. Carol Gallagher by telephone (301) 415-5905 
    or e-mail:cag@nrc.gov for information about the interactive rulemaking 
    website.
    
    FOR FURTHER INFORMATION CONTACT: Jerry N. Wilson, Mail Stop O-12 G15, 
    Office of Nuclear Reactor Regulation, U.S. Nuclear Regulatory 
    Commission, Washington, DC 20555-0001, or telephone (301) 415-3145, or 
    e-mail: jnw@nrc.gov.
    
    SUPPLEMENTARY INFORMATION:
    
    Table of Contents
    
    I. Background.
    II. Comments and Hearings in the design certification rulemaking.
        A. Opportunity to submit written and electronic comments.
        B. Opportunity to request hearing.
        C. Hearing process.
        D. Resolution of issues for the final rulemaking.
        E. Access to proprietary information in rulemaking.
        F. Ex parte and separation of functions restrictions.
    III. Section-by-section discussion of design certification rule.
        A. Introduction (Section I).
        B. Definitions (Section II).
        C. Scope and contents (Section III).
        D. Additional requirements and restrictions (Section IV).
        E. Applicable regulations (Section V).
        F. Issue resolution (Section VI).
        G. Duration of this appendix (Section VII).
        H. Processes for changes and departures (Section VIII).
        I. Inspections, tests, analyses, and acceptance criteria 
    (Section IX).
        J. Records and Reporting (Section X).
    IV. Finding of no significant environmental impact: availability
    V. Paperwork Reduction Act statement.
    VI. Regulatory analysis.
    VII. Regulatory Flexibility Act certification.
    VIII. Backfit analysis.
    IX. Consensus standards.
    
    I. Background
    
        The NRC added 10 CFR Part 52 to its regulations to provide for the 
    issuance of early site permits, standard design certifications, and 
    combined licenses for nuclear power reactors. Subpart B of 10 CFR Part 
    52 established the process for obtaining design certifications. On June 
    26, 1992, Westinghouse tendered its application for certification of 
    the AP600 standard plant design with the NRC. Westinghouse submitted 
    this application in accordance with Subpart B and Appendix O of 10 CFR 
    Part 52. The NRC formally accepted the application as a docketed 
    application for design certification (Docket No. 52-003) on December 
    31, 1992. Information submitted before that date can be found under 
    Project No. 676.
        The NRC staff issued a final safety evaluation report (FSER) 
    related to certification of the AP600 standard plant design in 
    September 1998 (NUREG-1512). The FSER documents the results of the NRC 
    staff's safety review of the AP600 design against the requirements of 
    10 CFR Part 52, Subpart B, and delineates the scope of the technical 
    details considered in evaluating the design. The FSER provides the 
    bases for Commission approval of the AP600 design through design 
    certification. A copy of the FSER may be obtained from the 
    Superintendent of Documents, U. S. Government Printing Office, P.O. Box 
    37082, Washington, DC 20402-9328 or the National Technical Information 
    Service, Springfield, VA 22161-0002. The final design approval for the 
    AP600 design was issued on September 3, 1998, and published in the 
    Federal Register on September 11, 1998 (63 FR 48772).
    
    Rulemaking Procedures
    
        Subpart B of 10 CFR Part 52 provides for Commission approval of 
    standard designs for nuclear power facilities (e.g., design 
    certification) through rulemaking. In accordance with the 
    Administrative Procedure Act (APA), Part 52 provides the opportunity 
    for the public to submit written comments on the proposed design 
    certification rule. However, Part 52 goes beyond the requirements of 
    the APA by providing the public with an opportunity to request a 
    hearing before the Atomic Safety and Licensing Board Panel in a design 
    certification rulemaking. While Part 52 describes a general framework 
    for conducting a design certification rulemaking, Sec. 52.51(a) states 
    that more detailed procedures for the conduct of each design 
    certification will be specified by the Commission.
        To assist the Commission in developing the detailed rulemaking 
    procedures, the NRC's Office of the General Counsel prepared a paper 
    (SECY-92-381, ``Rulemaking Procedures for Design Certification,'' dated 
    November 10, 1992), that recommended design certification rulemaking 
    procedures. This paper was prepared after consideration of the panel 
    discussions at a public workshop and the written comments received 
    after the workshop. On April 30, 1993, the Commission issued a 
    Memorandum to
    
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    the General Counsel that provided the Commission's determinations with 
    respect to the procedural issues raised by the General Counsel's paper. 
    Section II describes the procedures to be utilized in this design 
    certification rulemaking.
    
    II. Comments and Hearings in the Design Certification Rulemaking
    
    A. Opportunity To Submit Written and Electronic Comments
    
        Any person may submit written comments on the proposed design 
    certification rule to the Commission for its consideration.1 
    Commenters have 75 days from the publication of this notice to file 
    written comments on the proposed design certification rule. Commenters 
    needing access to proprietary or safeguards information in order to 
    provide written comments must follow the procedures and filing 
    deadlines (including the date for filing written comments) set forth in 
    Section E below.
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        \1\ An opportunity for public comment is required by Section 553 
    of the Administrative Procedures Act and 10 CFR 52.51(b).
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        Commenters are encouraged to submit, in addition to the original 
    paper copy, a copy of the comment letter in electronic format on a 3.5 
    inch computer diskette. Text files should be provided in WordPerfect 8 
    format or unformatted ASCII code. The format and version should be 
    identified on the diskette's external label.
    
    B. Opportunity To Request Hearing
    
        Any person may request an informal hearing on one or more specific 
    matters with respect to the proposed design certification 
    rule.2 An informal hearing provides the admitted party with 
    an opportunity to provide written and oral presentations on those 
    matters to an Atomic Safety and Licensing Board, and to request that 
    the licensing board question the applicant on those matters. The 
    conduct of an informal hearing is discussed in more detail in Section 
    C. below. Under certain circumstances, a party in an informal hearing 
    may request that the Commission hold a formal hearing on specific and 
    substantial factual disputes necessary to resolve the matters for which 
    the party was granted an informal hearing (Section C.11 below).
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        \2\ An opportunity for a hearing is provided by 10 CFR 52.51(b).
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        A person may request an informal hearing even though that person 
    has not submitted separate written comments on the design certification 
    rule (i.e., is not a commenter). Requests for an informal hearing must 
    be received by the Commission no later than 75 days from the 
    publication of this notice, and a copy of the request must be sent via 
    overnight mail to the design certification applicant at the following 
    address: Mr. Brian A. McIntyre, Manager, Advanced Plant Safety and 
    Licensing, Westinghouse Electric Company, P.O. Box 355, Pittsburgh, PA 
    15230-0355. The information which a person requesting a hearing must 
    provide in the hearing request, as well as the procedures and standards 
    to be used by the Commission in its determination of the request, are 
    discussed in Sections C.1 through C.4 below.
        A person who needs to review proprietary information submitted by 
    the design certification applicant in order to prepare a request for an 
    informal hearing must follow the procedures and filing schedule set 
    forth in Section E. below.
        The Commission is also providing an opportunity for interested 
    State, county, and city/municipal and other local Governments, as well 
    as Native American tribal governments, to participate as ``interested 
    governments'' in any informal hearings which the Commission authorizes, 
    similar to their participation as ``interested governments'' in Subpart 
    G hearings under 10 CFR 2.715. State, county, city/municipal, local, 
    and tribal Governments wishing to participate as an ``interested 
    government'' in any design certification rulemaking hearings must file 
    their request to participate no later than 75 days from the publication 
    of this notice.
    
    C. Hearing Process
    
    1. Filings and Computation of Times
        All notices, papers, or other filings discussed in this section 
    must be filed by express mail.3 The time periods specified 
    in this section have been established based upon such a filing. The 
    express mail filing requirement shall be considered in establishing 
    other filing deadlines.
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        \3\ Filings discussed in this section may also be served upon 
    the Commission in electronic form in lieu of express mail. However, 
    parties must serve copies of their filings on other parties by 
    express mail, unless the receiving party agrees to filing in 
    electronic form. These filings must be transmitted no later than the 
    last day of the time period specified for filing and must be in 
    accordance with the requirements specified under Date and Addresses 
    in this notice.
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        In computing any period of time, the day of the act, event, or 
    default after which the designated period of time begins to run is not 
    included. The last day of the period so computed is included, unless it 
    is a Saturday, Sunday, or legal holiday at the place where the action 
    or event is to occur, in which case the period runs until the next day 
    which is neither a Saturday, Sunday, nor holiday.
    2. Content of Hearing Request
        The Commission will grant a request for an informal hearing only if 
    the hearing request satisfies each of the following two requirements. 
    First, the hearing request must include the written presentations that 
    the requestor wishes to be included in the record of the hearing. The 
    written presentations must:
        (i) Identify the specific portion of the proposed design 
    certification rule or supporting bases which are challenged,
        (ii) Describe the reasons why the proposed rule or supporting bases 
    are incorrect or insufficient, and
        (iii) Identify the references or sources upon which the person 
    requesting the hearing relies.
        If the requestor has submitted written comments in the public 
    comment period addressing these three factors for the specific issue 
    for which the requestor seeks a hearing, it will be sufficient for the 
    requestor to identify the portions of the written comments that the 
    requestor intends to submit as a written presentation. Also, the 
    hearing request must demonstrate that the requestor (or other persons 
    identified in the hearing request who will represent, assist, or speak 
    on behalf of the requestor at the hearing) has appropriate knowledge 
    and qualifications to enable the requestor to contribute significantly 
    to the development of the hearing record on the specific matters at 
    issue. The Commission does not intend that the requestor meet a 
    judicial ``expert witness'' standard in order to meet the second 
    criterion. Nonetheless, given the substantial commitment of time and 
    resources associated with any hearing, the Commission believes it to be 
    a reasonable prerequisite that the requestor demonstrate that he/she 
    (or his/her assistant) has:
        (i) Substantial familiarity with the publicly available docketed 
    information relevant to the issue for which a hearing is requested;
        (ii) The requisite technical capability to understand the factual 
    matters and develop a record on the issue for which a hearing is 
    requested, and
        (iii) An understanding of the NRC's hearing procedures in 10 CFR 
    Part 2.4
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        \4\ Requesters will satisfy this requirement by stating that 
    they possess and have read a copy of 10 CFR Part 2, Subparts A, G, 
    and L.
    
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    3. Request to Hold Hearing Outside of Washington, DC
        Any hearing(s) which the Commission may authorize ordinarily will 
    be conducted in the Washington, DC. metropolitan area. However, the 
    Commission at its discretion may schedule hearings outside the 
    Washington, DC. metropolitan area in response to requests submitted by 
    a person requesting a hearing that all or part of the hearing be held 
    elsewhere. These requests must be submitted in conjunction with the 
    request for hearing, and must specifically explain the special 
    circumstances for holding a hearing outside the Washington, DC. 
    metropolitan area.
    4. Responses to Hearing Request
        The applicant may file a response to any hearing request within 15 
    days of the date of the hearing request. The NRC staff will not provide 
    a response to the hearing request unless requested to do so by the 
    Commission but may assist the Commission in its ruling on the request.
    5. Commission Determination of Hearing Request
        The Commission intends to rule on a hearing request within 20 days 
    of the close of the period for requesting a hearing. The Commission's 
    determination will be based upon the materials accompanying the hearing 
    request and the applicant's response (and the NRC staff's response, if 
    requested by the Commission). The hearing request shall be granted if:
        (i) The request is accompanied by a written presentation containing 
    the information required by Section C.2. above; and
        (ii) The requestor has the appropriate knowledge and qualifications 
    to enable the requestor to contribute significantly to the development 
    of the hearing record on the matters sought to be controverted.
        The Commission may consult with the NRC staff before its 
    determination of a hearing request. A written decision either granting 
    or denying the hearing request will be published by the Commission.
        If a hearing request is granted in whole or in part, the 
    Commission's decision will delineate the controverted matter that will 
    be the subject of the hearing and whether any issues and/or parties are 
    to be consolidated (see Section C.7. below). The Commission's decision 
    granting the hearing will direct the establishment of a licensing board 
    to preside over the informal hearing. Finally, the Commission's 
    decision will specify:
        (i) The date by which any requests for discovery must be filed with 
    the licensing board (normally 20 days after the date of the 
    Commission's decision), and
        (ii) The date by which any objections to discovery must be filed 
    (see Section C.9. below).
        The Commission's decision will be sent to each admitted party by 
    overnight mail. Separate hearings may be granted for each controverted 
    matter or set of consolidated matters. Thus, if there are three 
    different controverted matters, the Commission may establish three 
    separate hearings. In this fashion, closing of the hearing record on a 
    controverted matter and its referral to the Commission for resolution 
    need not await completion of the hearing on the other controverted 
    matters. Finally, the Commission's decision will rule on any requests 
    for hearings outside of the Washington, DC. metropolitan area (see 
    Section C.3 above).
    6. Authority of the Licensing Board
        If the Commission authorizes an informal hearing on a controverted 
    matter, the licensing board will function as a ``limited magistrate'' 
    in that hearing with the authority and responsibility for assuring that 
    a sufficient record is developed on those controverted matters which 
    the Commission has determined are appropriate for consideration in that 
    hearing. The licensing board shall have the following specific 
    responsibilities and authority:
        (i) Schedule and expeditiously conduct the informal hearing for 
    each admitted controverted matter, consistent with the rights of all 
    the parties and with the Commission's Statement of Policy on Conduct of 
    Adjudicatory Proceedings 5, CLI-98-12, 48 NRC 18 (1998), (63 
    FR 41872, August 5, 1998),
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        \5\ Although the opportunity for an informal hearing provided 
    for in Section 52.51(b) and this rulemaking notice is not an 
    adjudicatory hearing per se, the underlying principals and goal of 
    expeditious and fair conduct of adjudicatory hearings are also 
    applicable to informal hearings.
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        (ii) Review all discovery requests against the criteria established 
    by the Commission, and refer all appropriate requests to the Commission 
    with a decision explaining the licensing board's action,
        (iii) Preside over and resolve any issues regarding the scheduling 
    and conduct of any discovery authorized by the Commission,
        (iv) Order such further consolidation of parties and issues as the 
    licensing board determines is necessary or desirable,
        (v) Orally examine persons making oral presentations in the 
    informal hearing, based in part upon the licensing board's review of 
    the parties' proposed oral questions to be asked of persons making oral 
    presentations,
        (vi) Request that the NRC staff:
        (A) Answer licensing board questions about the FSER or the proposed 
    rule,
        (B) Provide additional information or documentation with respect to 
    the design certification, and
        (C) Provide other assistance as the licensing board may request. 
    Licensing board requests for NRC staff assistance should be framed such 
    that the NRC staff does not assume a role as an adversary party in the 
    informal hearing (see Section C.8 below),
        (vii) Review all requests for additional hearing procedures and 
    refer all appropriate requests to the Commission with a decision 
    explaining the licensing board's action,
        (viii) Certify the hearing record to the Commission, based upon the 
    licensing board's determination that the hearing record contains 
    sufficient information for the Commission to make a reasoned 
    determination on the controverted matter; and
        (ix) Include with its certification any concerns identified by the 
    licensing board in the course of the hearing which, although neither 
    raised by the parties nor necessary to resolution of the controverted 
    hearing matters, are significant enough in the licensing board's view 
    to warrant attention by the Commission.
        Licensing board determinations with respect to referral of requests 
    to the Commission, as well as licensing board determinations of 
    parties' motions, are not appealable to the Commission as an 
    interlocutory matter. Instead, any disagreements with the licensing 
    board's determinations and a specific discussion of how the hearing 
    record is deficient with respect to the contested issue must be set 
    forth in the parties' proposed findings of fact which are submitted 
    directly to the Commission (see Section C.13 below).
        As suggested by Item (ix) above, the licensing board shall not have 
    any ``sua sponte'' authority analogous to 10 CFR 2.760a. The Commission 
    believes that in the absence of a request for an informal hearing on a 
    matter, the Commission should resolve issues with respect to the design 
    certification rule in the same manner as other agency-identified 
    rulemaking issues, viz., through NRC staff consideration of the issue 
    followed by the Commission's review and its final resolution of the 
    matter. However, when it certifies the completed hearing record to the 
    Commission (see Section C.12. below), the licensing board should 
    identify to the Commission any
    
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    concerns identified during the hearing that are significant enough to 
    warrant Commission consideration but that are unnecessary or irrelevant 
    to the resolution of the controverted hearing matter.
        The licensing board shall close the hearing and certify the record 
    to the Commission only after it determines that the record on the 
    controverted matter is sufficiently complete for the Commission to make 
    a reasoned determination with respect to that matter. However, the 
    licensing board shall not have any responsibility or authority to 
    resolve and decide controverted matters in either an informal or a 
    formal hearing. Rather, the Commission retains its traditional 
    authority in rulemaking proceedings to evaluate and resolve all 
    rulemaking issues identified in public comments on a proposed rule. 
    Therefore, the Commission will resolve any controverted matters that 
    are the subject of a hearing in this design certification rulemaking.
    7. Consolidation of Parties and Issues; Joint Hearings on Related 
    Issues
        If two or more persons seek an informal hearing on the same or 
    similar matters, the Commission may, in its discretion, grant an 
    informal hearing and consolidate the matters into a single issue (as 
    defined by the Commission). The Commission may also, in its discretion, 
    require that the parties be consolidated analogous to the consolidation 
    permitted under 10 CFR 2.715a. If the Commission consolidates two or 
    more issues into a single consolidated issue but does not consolidate 
    parties, each admitted person will be deemed a separate party with an 
    individual right to:
        (i) Submit separate written presentations,
        (ii) Submit separate sets of proposed oral questions to be asked by 
    the licensing board (see Section C.10 below),
        (iii) Make separate oral presentation, and
        (iv) Submit and separately respond to motions.
        If the Commission also requires that parties be consolidated, the 
    consolidated parties must participate jointly, including deciding upon 
    written and oral presentations, submitting a single set of written 
    questions, submitting motions supported by each of the consolidated 
    parties, and responding to motions filed by other parties.
        During the informal hearing, the licensing board may decide that 
    further consolidation of issues or parties would simplify the overall 
    conduct of informal hearings or materially reduce the time or resources 
    devoted to the hearings. In these instances, the licensing board may 
    direct such consolidation. The licensing board shall set forth the 
    issues and/or parties to be consolidated and the reasons for such 
    consolidation in a written order.
    8. Status of the Design Certification Applicant, the NRC staff, and 
    Requesting Party
        The design certification applicant shall be a party in the informal 
    hearing, with the right to submit written and oral presentations, 
    propose questions to be asked by the licensing board of oral 
    presenters, and file and submit appropriate motions.
        The NRC staff shall not be a party in the informal hearing but 
    shall be available in the informal hearing to answer licensing board 
    questions about the FSER or the proposed rule, provide additional 
    information or documentation with respect to the design certification, 
    and provide other assistance that the licensing board may request 
    without the NRC staff assuming the role of a party in the informal 
    hearing.
        A party whose hearing requests have been granted with respect to a 
    particular controverted matter shall not participate with respect to 
    any controverted matter on which the party was not granted a hearing. 
    For example, if Person 1 has been authorized as a party on Issue A and 
    Person 2 has been authorized as a party on Issue B, then Person 1 may 
    participate only in the informal hearing on Issue A, and may not 
    participate in the informal hearing on Issue B. Conversely, Person 2 
    may participate only in the informal hearing on Issue B, and may not 
    participate in the informal hearing on Issue A.
    9. Requests for Discovery
        Any party may request the opportunity to conduct discovery against 
    another party before the oral phase of the informal hearing. The 
    request for discovery must:
        (i) Identify the type of discovery permitted under 10 CFR 2.740, 
    2.740a, 2.740a(b), 2.741, and 2.742 which the party seeks to use;
        (ii) Identify the subject matter or nature of the information 
    sought to be obtained by discovery; and
        (iii) Explain with particularity the relevance of the information 
    sought to the controverted matter which is the subject of the hearing 
    and why this information is indispensable to the presentation of the 
    party's position on the controverted matter. The request shall be filed 
    with the licensing board, with copies of the request to be filed with 
    the party against which discovery is sought, and the NRC staff. The 
    requests must be received no later than the deadline specified by the 
    Commission in its decision granting a party's hearing request (see 
    Section C.5. above). A party against whom discovery is sought may file 
    a response objecting to part or all of the request. Such a response 
    must explain with particularity why the discovery request should not be 
    granted.
        The licensing board shall review all discovery requests and refer 
    to the Commission those requests that it believes should be granted 
    within 7 days after the date for receiving a party's objections to a 
    discovery request. The licensing board shall issue a written decision 
    explaining its basis for either referring the request to the Commission 
    or declining to refer it. The written decision shall accompany the 
    discovery requests which are referred by the licensing board to the 
    Commission.
        The Commission will determine whether to grant any discovery 
    requests forwarded to it based upon the licensing board's decision, 
    together with the request and the design certification applicant's 
    response (and any NRC staff response requested by the licensing board). 
    Discovery will be at the discretion of the Commission. In this regard, 
    the Commission notes that there are two docket files in which the NRC 
    staff has placed information and documents received from the applicant 
    for the AP600 design certification review. The application was docketed 
    on December 31, 1992 and assigned Docket No. 52-003. Correspondence 
    relating to the application prior to this date was addressed to Project 
    No. 676. This information includes the AP600 Design Control Document, 
    Revision 2 (3/99) and the AP600 Standard Safety Analysis Report, 
    Revision 25. Furthermore, the docket files contain NRC staff 
    communications and documents, such as written questions and comments 
    provided to the design certification applicant, and summaries of 
    meetings held between the NRC staff and the design certification 
    applicant. The NRC staff's bases for approving the AP600 design are set 
    forth in the FSER (NUREG-1512), dated September 1998. The Commission 
    also notes that each admitted party has already disclosed a substantial 
    amount of information in its hearing request, relating both to bases 
    for the party's position with respect to the controverted matter as 
    well as information on the qualifications of the party (or its 
    representatives and witnesses in the hearing).
    
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        As discussed above, much of the information documenting the NRC 
    staff's review and approval of the design certification application has 
    been routinely placed in the docket file. Furthermore, as discussed 
    above in Section C.8, the NRC staff is not a party in an informal 
    hearing. Therefore, the Commission has decided that in an informal 
    hearing, the parties should not be afforded discovery against the NRC 
    staff.
    10. Conduct of Informal Hearing
        If the Commission authorizes discovery, the licensing board shall 
    establish a schedule for the conduct and completion of discovery. 
    Normally, the licensing board should not permit more than one round of 
    discovery. The Commission will not entertain any interlocutory appeals 
    from licensing board orders resolving any discovery disputes or 
    otherwise complaining of the scheduling of discovery.
        Following the completion of discovery, the licensing board should 
    issue an order setting forth the date of commencement of the oral phase 
    of each informal hearing, and the date (no less than 30 days before the 
    commencement of the oral phase of the hearing) by which parties must 
    submit:
        (i) The identities and curriculum vitae of those persons providing 
    oral presentations;
        (ii) The outlines of the oral presentations; and
        (iii) Any questions which a party would like the licensing board to 
    ask.
        The licensing board may schedule the oral phases of two or more 
    informal hearings to be held during the same session. The licensing 
    board shall publish a notice in the Federal Register announcing the 
    commencement of the oral phase of the informal hearing(s). The notice 
    shall set forth the place and time of the oral hearing session, the 
    subject matter(s) of the informal hearing(s), a brief description of 
    the informal hearing procedures, and a statement indicating that the 
    public may observe the informal hearing.
        Based upon the parties' outlines of the oral presentations and 
    proposed questions, the licensing board should determine whether it has 
    specific questions of the NRC staff with respect to the staff's review 
    of the design certification application. These questions should be 
    submitted in writing to the NRC staff no less than 20 days before the 
    commencement of the oral phase of the hearing and must specify the date 
    by which the NRC staff shall provide its written answers to the 
    licensing board. The licensing board shall send copies of the request 
    by overnight mail to all parties. The NRC staff shall file its written 
    answers with the licensing board and the parties.
        During the oral phase of the hearing, the licensing board shall 
    receive into evidence the written presentations of the parties and 
    permit each party (or the representatives identified in their hearing 
    request) to make oral presentations addressing the controverted matter. 
    Normally, the party raising the controverted matter should make their 
    presentations, followed by the presentations of the design 
    certification applicant. The licensing board may question the persons 
    making oral presentations, using its own questions as well as those 
    submitted to the licensing board by the other parties. Based upon the 
    parties' oral presentations and/or responses to licensing board 
    questions, the licensing board also may orally question the NRC staff.
    11. Additional Hearing Procedures and Formal Hearings
        After the parties have made their oral presentations and the 
    licensing board has concluded its questioning of the presenters (and, 
    as applicable, the NRC staff), the licensing board should declare that 
    the oral phase of an informal hearing on a controverted matter (or 
    consolidated set of controverted matters) is complete.
        No later than 10 days after the licensing board has declared that 
    the oral phase of the informal hearing has been completed, parties may 
    file with the licensing board (with copies to the applicant and the NRC 
    staff) a request that some or all of the procedures described in 10 CFR 
    Part 2, Subpart G (e.g., direct and cross-examination by the parties) 
    be utilized. The request shall:
        (i) Identify the specific hearing procedures which the party seeks, 
    or state that a formal hearing is requested;
        (ii) Identify the specific factual issues for which the additional 
    procedures would be utilized;
        (iii) Explain why resolution of these factual disputes are 
    necessary to the Commission's decision on the controverted issue;
        (iv) Explain, with specific citations to the hearing record, why 
    the record is insufficient on the controverted matter; and
        (v) Identify the nature of the evidence that would be developed 
    utilizing the additional procedures requested.
        The design certification applicant may file a response to these 
    requests no later than 7 days after the applicant's receipt of a 
    request for additional procedures. The NRC staff will not provide a 
    response unless specifically requested to do so by the licensing board.
        The licensing board will review all requests for additional hearing 
    procedures or a formal hearing and refer those that it believes should 
    be granted to the Commission for its determination. The licensing board 
    shall issue a written decision explaining its determination whether to 
    forward the request to the Commission no later than 7 days after 
    receipt of any applicant response to the request. The decision will 
    provide the basis for either forwarding the request to the Commission 
    or declining to forward it. In the absence of any requests for hearing 
    procedures or if the licensing board concludes that none of the 
    requests should be referred to the Commission, the licensing board 
    should declare that the hearing record is closed (see Section C.12 
    below).
        The Commission will determine whether to grant any requests for 
    additional procedures or a formal hearing that are forwarded by the 
    licensing board. The Commission's determination shall be based upon the 
    licensing board's decision along with the request and the design 
    certification applicant's response. If the Commission directs that a 
    formal hearing be held on a controverted factual matter, the NRC staff 
    shall be a party in the formal hearing. Any formal hearing authorized 
    by the Commission shall be conducted in accordance with the 
    Commission's Statement of Policy on Conduct of Adjudicatory 
    Proceedings. As noted in that Policy Statement, the Commission may, in 
    individual cases, establish specific milestone schedules for the 
    conduct of the formal hearing and require the presiding officer to 
    explain and mitigate any significant deviations from that milestone 
    schedule. After either the additional hearing procedures authorized by 
    the Commission are completed or the formal hearing is concluded on the 
    factual dispute, the licensing board should declare the hearing record 
    closed (see Section C.12 below).
    12. Licensing Board's Certification of Hearing Record to the Commission
        After the oral phase of a hearing is completed and either:
        (i) There are no requests for additional hearing procedures or a 
    formal hearing; or
        (ii) The licensing board concludes that none of the requests should 
    be referred to the Commission, then the licensing board should declare 
    that the hearing record is closed. If the Commission directs that 
    additional hearing procedures should be utilized or
    
    [[Page 27631]]
    
    a formal hearing be held on specific factual disputes, the licensing 
    board should declare the hearing record closed after completion of the 
    additional hearing procedures or the formal hearing. Within 30 days of 
    the closing of the hearing record the licensing board should certify 
    the hearing record to the Commission on each controverted matter (or 
    consolidated set of controverted matters).6
    ---------------------------------------------------------------------------
    
        \6\ An informal hearing is deemed to be completed when the 
    period for requesting additional procedures or a formal hearing 
    expires and no request is received.
    ---------------------------------------------------------------------------
    
        The licensing board's certification for each controverted matter 
    (or consolidated set of controverted matters) shall contain:
        (i) The hearing record, including a transcript of the oral phase of 
    the hearing (and any pre-hearing conferences) and copies of all filings 
    by the parties and the licensing board,
        (ii) A list of all documentary evidence admitted by the licensing 
    board, including the written presentations of the parties,
        (iii) Copies of the documentary evidence admitted by the licensing 
    board,
        (iv) A list of all witnesses who provided oral testimony,
        (v) The NRC staff's written answers to licensing board requests, 
    and
        (vi) A licensing board statement that the hearing record contains 
    sufficient information for the Commission to make a reasoned 
    determination on the controverted matter.
        Finally, as discussed in Section C.6 above, the licensing board 
    should identify any issues not raised by the parties or otherwise are 
    not relevant to the controverted matters in the hearing, that the 
    licensing board believes are significant enough to warrant attention by 
    the Commission.
    13. Parties' Proposed Findings of Fact and Conclusions
        The applicant must file directly with the Commission proposed 
    findings of fact and conclusions for each controverted hearing matter 
    (or consolidated set of controverted matters) within 30 days following 
    the close of the hearing record on that matter in the form of a 
    proposed final rule and statement of considerations with respect to the 
    controverted hearing issues.
        Other parties are encouraged, but not required, to file with the 
    Commission proposed findings of fact and conclusions limited to those 
    issues which a party was afforded a hearing by the Commission (i.e., a 
    party may not file proposed findings of fact and conclusions on issues 
    which it was not admitted). Any findings that a party wishes the 
    Commission to consider must be received by the Commission no later than 
    30 days after the licensing board closes the hearing record on that 
    issue. Although parties are not required to file proposed findings and 
    conclusions, a party who does not file a finding may not, upon appeal, 
    claim or otherwise argue that the Commission either misunderstood the 
    party's position, or failed to address a specific piece of evidence or 
    issue.
    
    D. Resolution of Issues for the Final Rulemaking
    
    1. Absence of Qualifying Hearing Request
        If the Commission does not receive any request for hearing within 
    the 75-day period for submitting a request, or does not grant any of 
    the requests (see Section B. above), the Commission will determine 
    whether the proposed design certification rule meets the applicable 
    standards and requirements of the Atomic Energy Act of 1954, as amended 
    (AEA), the National Environmental Policy Act of 1969, as amended 
    (NEPA), and the Commission's rules and regulations. The Commission's 
    determination will be based upon the rulemaking record, which includes: 
    the application for design certification, including the AP600 Standard 
    Safety Analysis Report (SSAR) and DCD; the applicant's responses to the 
    NRC staff's requests for additional information; the NRC staff's FSER 
    and any supplements thereto; the report on the application by the ACRS; 
    the applicant's evaluation of severe accident mitigation design 
    alternatives for purposes of NEPA in Appendix 1B of the SSAR; the NRC 
    staff's draft EA and FONSI; the proposed rule, and the public comments 
    received on the proposed rule. If the Commission makes an affirmative 
    finding, it will issue a standard design certification in the form of a 
    rule by adding a new appendix to 10 CFR Part 52, and publish the design 
    certification rule and a statement of considerations in the Federal 
    Register.
    2. Commission Resolution of Issues Where a Hearing is Granted
        All matters related to the proposed design certification rule, 
    including those matters for which the Commission authorizes a hearing 
    (see Sections B. and C. above), will be resolved by the Commission 
    after the licensing board has closed the hearing record and certified 
    it to the Commission. The Commission will determine whether the 
    proposed design certification rule meets the applicable standards and 
    requirements of the AEA, NEPA, and the Commission's rules and 
    regulations. The Commission's determination will be based upon the 
    rulemaking record as described in Section D.1 above, with the addition 
    of the hearing record for controverted matters. If the Commission makes 
    an affirmative finding, the Commission will issue a final design 
    certification rule as described in Section D.1.
    
    E. Access to Proprietary Information in Rulemaking
    
    1. Access to Proprietary Information for the Preparation of Written 
    Comments or Informal Hearing Requests
        Persons who determine that they need to review proprietary 
    information submitted by the design certification applicant to the NRC 
    in order to submit written comments on the proposed certification or to 
    prepare an informal hearing request, may request access to such 
    information from the applicant.
        The request shall state with particularity:
        (i) The nature of the proprietary information sought,
        (ii) The reason why the nonproprietary information currently 
    available to the public in the NRC's Public Document Room is 
    insufficient either to develop public comments or to prepare for the 
    hearing,
        (iii) The relevance of the requested information either to the 
    issue which the commenter wishes to comment on, and
        (iv) A showing that the person requesting the information has the 
    capability to understand and utilize the requested information.
        Requests must be filed with the applicant such that they are 
    received by the applicant no later than 45 days after the date that 
    this notice of proposed rulemaking is published in the Federal 
    Register.
        Within ten (10) days of receiving the request, the applicant must 
    send a written response to the person seeking access. The response must 
    either provide the documents requested (or state that the document will 
    be provided no later than ten days after the date of the response), or 
    state that access has been denied. If access is denied, the response 
    shall state with particularity the reasons for its refusal. The 
    applicant's response must be provided via express mail.
        The person seeking access may then request a Commission hearing for 
    the purpose of obtaining a Commission order directing the design 
    certification
    
    [[Page 27632]]
    
    applicant to disclose the requested information. The person must 
    include copies of the original request (and any subsequent clarifying 
    information provided by the person requesting access to the applicant) 
    and the applicant's response. The Commission will base its decision 
    solely on the person's original request (including any clarifying 
    information provided to the applicant by the person requesting access), 
    and the applicant's response. Accordingly, a person seeking access to 
    proprietary information should ensure that the request sets forth in 
    sufficient detail and particularity the information required to be 
    included in the request. Similarly, the applicant should ensure that 
    its response to any request states with sufficient detail and 
    particularity the reasons for its refusal to provide the requested 
    information.
        If the Commission orders access in whole or part, the Commission 
    will specify the date by which the requesting party must file with the 
    Commission written comments and any request for an informal hearing 
    before a licensing board as discussed in Section V.C. above. A request 
    for an informal hearing must meet the requirements set forth above in 
    Section V.C., in particular the requirements governing the content of 
    the hearing request, and shall be governed by the procedures and 
    standards governing such requests set forth in Section V.C.
    2. Access to Proprietary Information in a Hearing
        Parties who are granted a hearing may request access to proprietary 
    information. Parties must first request access to proprietary 
    information regarding the proposed design certification from the 
    applicant. The request shall state with particularity:
        (i) The nature of the proprietary information sought,
        (ii) The reason why the nonproprietary information currently 
    available to the public in the NRC's Public Document Room is 
    insufficient to prepare for the hearing,
        (iii) The relevance of the requested information to the hearing 
    issue(s) for which the party has been admitted, and
        (iv) A showing that the requesting party has the capability to 
    understand and utilize the requested information.
        The request must be filed with the applicant no later than the date 
    established by the Commission for filing discovery requests with the 
    licensing board.
        If the applicant declines to provide the information sought, within 
    10 days of receiving the request, the applicant must send a written 
    response to the requesting party setting forth with particularity the 
    reasons for its refusal. The party may then request the licensing board 
    to order disclosure. The party must include copies of the original 
    request (and any subsequent clarifying information provided by the 
    requesting party to the applicant) and the applicant's response. The 
    licensing board shall base its decision solely on the party's original 
    request (including any clarifying information provided by the 
    requesting party to the applicant), and the applicant's response.
        Accordingly, a party requesting proprietary information from the 
    applicant should ensure that its request sets forth in sufficient 
    detail and particularity the information required to be included in the 
    request. Similarly, the applicant should ensure that its response to 
    any request states with sufficient detail and particularity the reasons 
    for its refusal to provide the requested information. The licensing 
    board may order the applicant to provide access to some or all of the 
    requested information, subject to an appropriate non-disclosure 
    agreement.
    
    F. Ex Parte and Separation of Functions Restrictions
    
        Unless the formal procedures of 10 CFR Part 2, Subpart G are 
    approved for a formal hearing in the design certification rulemaking 
    proceeding, the NRC staff will not be a party in the hearing and 
    separation of functions limitations will not apply. The NRC staff may 
    assist in the hearing by answering questions about the FSER put to it 
    by the licensing board, or to provide additional information, 
    documentation, or other assistance as the licensing board may request. 
    Furthermore, other than in a formal hearing, the NRC staff shall not be 
    subject to discovery by any party, whether by way of interrogatory, 
    deposition, or request for production of documents.
        Second, the Commission has determined that once a request for an 
    informal or formal hearing is received, certain elements of the ex 
    parte restrictions in 10 CFR 2.780(a) will be applicable with respect 
    to the subject matter of that hearing request. Under these 
    restrictions, the Commission will communicate with interested persons/
    parties, the NRC staff, and the licensing board with respect to the 
    issues covered by the hearing request only through docketed, publicly-
    available written communications and public meetings. Individual 
    Commissioners may communicate privately with interested persons and the 
    NRC staff; however, the substance of the communication shall be 
    memorialized in a document which will be placed in the PDR and 
    distributed to the licensing board and relevant parties.
    
    III. Section-By-Section Discussion of Design Certification Rule
    
        The proposed design certification rule (DCR) for the AP600 standard 
    plant design is nearly identical to the two design certification rules 
    for the U.S. ABWR and the System 80+ designs, which the NRC previously 
    adopted. These DCRs are set forth in 10 CFR Part 52, Appendix A (U.S. 
    ABWR, 62 FR 25800, May 12, 1997) and Appendix B (System 80+, 62 FR 
    27840, May 21, 1997). The AP600 DCR emulates the U.S. ABWR and System 
    80+ DCRs, inasmuch as the three designs were reviewed contemporaneously 
    against the same technical requirements. Furthermore, many of the 
    procedural issues and their resolutions for the ABWR and the System 80+ 
    DCRs (e.g., the two-tier structure, Tier 2*, the scope of issue 
    resolution) were developed after extensive discussions with nuclear 
    industry representatives, and Westinghouse participated in those 
    discussions. It was the NRC's intent (and likely Westinghouse's 
    expectation) that the resolutions for these issues in the ABWR and 
    System 80+ rulemakings would also be applied to the AP600 rule. 
    Accordingly, the NRC has modeled the AP600 DCR on the existing DCRs for 
    the ABWR and System 80+, with certain departures. These departures are 
    necessary to reflect that Westinghouse is the applicant for the AP600 
    DCR, and to account for differences in the AP600 design documentation, 
    design features (including the investment protection short-term 
    availability controls), and environmental assessment (including severe 
    accident mitigation design alternatives).
        The following discussion sets forth the purpose and key aspects of 
    each section and paragraph of the proposed AP600 design certification 
    rule. All section and paragraph references are to the provisions in the 
    proposed Appendix C to 10 CFR Part 52.
    
    A. Introduction
    
        The purpose of Section I of Appendix C to 10 CFR Part 52 (``this 
    appendix'') is to identify the standard plant design that is approved 
    by this design certification rule and the applicant for certification 
    of the standard design. Identification of the design certification 
    applicant is necessary to implement this appendix, for two reasons. 
    First, the implementation of 10 CFR 52.63(c) depends on whether an 
    applicant for a combined license (COL) contracts with
    
    [[Page 27633]]
    
    the design certification applicant to provide the generic DCD and 
    supporting design information. If the COL applicant does not use the 
    design certification applicant to provide this information, then the 
    COL applicant must meet the requirements in 10 CFR 52.63(c). Also, 
    X.A.1 of this appendix imposes a requirement on the design 
    certification applicant to maintain the generic DCD throughout the time 
    period in which this appendix may be referenced.
    
    B. Definitions
    
        The terms Tier 1, Tier 2, Tier 2*, and COL action items (license 
    information) are defined in this appendix because these concepts were 
    not envisioned when 10 CFR Part 52 was developed. The design 
    certification applicants and the NRC staff used these terms in 
    implementing the two-tiered rule structure that was proposed by 
    representatives of the nuclear industry after issuance of 10 CFR Part 
    52. During consideration of the comments received on Appendices A and B 
    to Part 52, the Commission determined that it would be useful to 
    distinguish between the ``plant-specific DCD'' and the ``generic DCD,'' 
    the latter of which is incorporated by reference into this appendix and 
    remains unaffected by plant-specific departures. This distinction is 
    necessary in order to clarify the obligations of applicants and 
    licensees that reference this appendix. Also, the technical 
    specifications that are located in Section 16.1 of the generic DCD are 
    designated as ``generic technical specifications'' in order to 
    facilitate the special treatment of this information under this 
    appendix. Therefore, appropriate definitions for these additional terms 
    are included in this appendix.
        The Tier 1 portion of the design-related information contained in 
    the DCD is certified by this appendix and, therefore, subject to the 
    special backfit provisions in VIII.A of this appendix. An applicant who 
    references this appendix is required to incorporate by reference and 
    comply with Tier 1, under III.B and IV.A.1 of this appendix. This 
    information consists of an introduction to Tier 1, the system based and 
    non-system based design descriptions and corresponding inspections, 
    tests, analyses, and acceptance criteria (ITAAC), significant interface 
    requirements, and significant site parameters for the design. The 
    design descriptions, interface requirements, and site parameters in 
    Tier 1 were derived entirely from Tier 2, but may be more general than 
    the Tier 2 information. The NRC staff's evaluation of the Tier 1 
    information is provided in Section 14.3 of the FSER. Changes to or 
    departures from the Tier 1 information must comply with Section VIII.A 
    of this appendix.
        The Tier 1 design descriptions serve as design commitments for the 
    lifetime of a facility referencing the design certification. The ITAAC 
    verify that the as-built facility conforms with the approved design and 
    applicable regulations. In accordance with 10 CFR 52.103(g), the 
    Commission must find that the acceptance criteria in the ITAAC are met 
    before operation. After the Commission has made the finding required by 
    10 CFR 52.103(g), the ITAAC do not constitute regulatory requirements 
    for licensees or for renewal of the COL. However, subsequent 
    modifications to the facility must comply with the design descriptions 
    in the plant-specific DCD unless changes are made in accordance with 
    the change process in Section VIII of this appendix. The Tier 1 
    interface requirements are the most significant of the interface 
    requirements for systems that are wholly or partially outside the scope 
    of the standard design, which were submitted in response to 10 CFR 
    52.47(a)(1)(vii) and must be met by the site-specific design features 
    of a facility that references this appendix. The Tier 1 site parameters 
    are the most significant site parameters, which were submitted in 
    response to 10 CFR 52.47(a)(1)(iii). An application that references 
    this appendix must demonstrate that the site parameters (both Tier 1 
    and Tier 2) are met at the proposed site (refer to III.D of this SOC).
        Tier 2 is the portion of the design-related information contained 
    in the DCD that is approved by this appendix but is not certified. Tier 
    2 information is subject to the backfit provisions in VIII.B of this 
    appendix. Tier 2 includes the information required by 10 CFR 52.47 
    (with the exception of generic technical specifications, conceptual 
    design information, and the evaluation of severe accident mitigation 
    design alternatives) and the supporting information on inspections, 
    tests, and analyses that will be performed to demonstrate that the 
    acceptance criteria in the ITAAC have been met. As with Tier 1, III.B 
    and IV.A.1 of this appendix require an applicant who references this 
    appendix to incorporate Tier 2 by reference and to comply with Tier 2, 
    except for the COL action items, including the investment protection 
    short-term availability controls in Section 16.3 of the generic DCD. 
    The definition of Tier 2 makes clear that Tier 2 information has been 
    determined by the Commission, by virtue of its inclusion in this 
    appendix and its designation as Tier 2 information, to be an approved 
    (``sufficient'') method for meeting Tier 1 requirements. However, there 
    may be other acceptable ways of complying with Tier 1. The appropriate 
    criteria for departing from Tier 2 information are specified in Section 
    VIII.B of this appendix. Departures from Tier 2 do not negate the 
    requirement in Section III.B to reference Tier 2.
        A definition of ``combined license (COL) action items'' (combined 
    license information), which is part of the Tier 2 information, has been 
    added to clarify that COL applicants, who reference this appendix, are 
    required to address these matters in their license application, but the 
    COL action items are not the only acceptable set of information. An 
    applicant may depart from or omit these items, provided that the 
    departure or omission is identified and justified in the FSAR. After 
    issuance of a construction permit or combined license, these items are 
    not requirements for the licensee unless such items are restated in its 
    FSAR.
        The investment protection short-term availability controls, which 
    are set forth in Section 16.3 of the generic DCD, were added to the 
    list of information that is part of Tier 2. This set of requirements 
    was added to Tier 2 to make it clear that the availability controls are 
    not operational requirements for the purposes of VIII.C of this 
    appendix. Rather, the availability controls are associated with 
    specific design features, and the availability controls may be changed 
    if the associated design feature is changed under VIII.B of this 
    appendix.
        Certain Tier 2 information has been designated in the generic DCD 
    with brackets and italicized text as ``Tier 2*'' information and, as 
    discussed in greater detail in the section-by-section explanation for 
    Section VIII.B, a plant-specific departure from Tier 2* information 
    requires prior NRC approval. However, the Tier 2* designation expires 
    for some of this information when the facility first achieves full 
    power after the finding required by 10 CFR 52.103(g). The process for 
    changing Tier 2* information and the time at which its status as Tier 
    2* expires is set forth in VIII.B.6 of this appendix. Some Tier 2* 
    requirements, concerning special preoperational tests, are designated 
    to be performed only for the first plant or first three plants 
    referencing the AP600 DCR. The Tier 2* designation for these selected 
    tests will expire after the first plant or first three plants complete 
    the specified tests. However, a COL action item requires that 
    subsequent plants shall also perform the tests or justify
    
    [[Page 27634]]
    
    that the results of the first-plant-only or first-three-plants-only 
    tests are applicable to the subsequent plant. The Commission is 
    interested in comments addressing whether the first-plant-only or 
    first-three-plants-only limitations should be part of the Tier 2* 
    information for these specified tests.
        During development of Appendices A and B to Part 52, the Commission 
    decided that there would be both generic (master) DCDs maintained by 
    the NRC and the design certification applicant, as well as individual 
    plant-specific DCDs, maintained by each applicant and licensee who 
    references this appendix. The generic DCDs (identical to each other) 
    would reflect generic changes to the version of the DCD approved in 
    this design certification rulemaking. The generic changes would occur 
    as the result of generic rulemaking by the Commission (subject to the 
    change criteria in Section VIII of this appendix). In addition, the 
    Commission understood that each applicant and licensee referencing this 
    appendix would be required to submit and maintain a plant-specific DCD. 
    This plant-specific DCD would contain (not just incorporate by 
    reference) the information in the generic DCD. The plant-specific DCD 
    would be updated as necessary to reflect the generic changes to the DCD 
    that the Commission may adopt through rulemaking, any plant-specific 
    departures from the generic DCD that the Commission imposed on the 
    licensee by order, and any plant-specific departures that the licensee 
    chose to make in accordance with the relevant processes in Section VIII 
    of this appendix. Thus, the plant-specific DCD would function akin to 
    an updated Final Safety Analysis Report, in the sense that it would 
    provide the most complete and accurate information on a plant's 
    licensing basis for that part of the plant within the scope of this 
    appendix. Therefore, this appendix defines both a generic DCD and 
    plant-specific DCD. Also, the Commission decided to treat the technical 
    specifications in Section 16.1 of the generic DCD as a special category 
    of information and to designate them as generic technical 
    specifications. A COL applicant must submit plant-specific technical 
    specifications that consist of the generic technical specifications, 
    which may be modified under VIII.C of this appendix, and the remaining 
    plant-specific information needed to complete the technical 
    specifications, including bracketed values. The Final Safety Analysis 
    Report (FSAR) that is required by Sec. 52.79(b) will consist of the 
    plant-specific DCD, the site-specific portion of the FSAR, and the 
    plant-specific technical specifications.
    
    C. Scope and Contents
    
        The purpose of Section III of this appendix is to describe and 
    define the scope and contents of this design certification and to set 
    forth how documentation discrepancies or inconsistencies are to be 
    resolved. Paragraph A is the required statement of the Office of the 
    Federal Register (OFR) for approval of the incorporation by reference 
    of Tier 1, Tier 2, and the generic technical specifications into this 
    appendix and paragraph B requires COL applicants and licensees to 
    comply with the requirements of this appendix. The legal effect of 
    incorporation by reference is that the material is treated as if it 
    were published in the Federal Register. This material, like any other 
    properly-issued regulation, has the force and effect of law. Tier 1 and 
    Tier 2 information, as well as the generic technical specifications, 
    have been combined into a single document called the generic design 
    control document, in order to effectively control this information and 
    facilitate its incorporation by reference into the rule. The generic 
    DCD was prepared to meet the requirements of the OFR for incorporation 
    by reference (1 CFR Part 51). One of the requirements of OFR for 
    incorporation by reference is that the design certification applicant 
    must make the generic DCD available upon request after the final rule 
    becomes effective. Therefore, III.A of this appendix identifies a 
    representative of Westinghouse who can be contacted to obtain a copy of 
    the generic DCD.
        Paragraphs A and B also identify the investment protection short-
    term availability controls in Section 16.3 of the generic DCD as part 
    of the Tier 2 information. During its review of the AP600 design, the 
    NRC determined that residual uncertainties associated with passive 
    safety system performance increased the importance of non-safety-
    related active systems in providing defense-in-depth functions that 
    back-up the passive systems. As a result, Westinghouse developed some 
    administrative controls to provide a high level of confidence that 
    active systems having a significant safety role are available when 
    challenged. Westinghouse named these additional controls ``investment 
    protection short-term availability controls,'' and the Commission 
    included this statement in Section III to ensure that these 
    availability controls are binding on applicants and licensees that 
    reference this appendix and will be enforceable by the NRC. The NRC's 
    evaluation of the availability controls is provided in Chapter 22 of 
    the FSER.
        The generic DCD (master copy) for this design certification will be 
    archived at NRC's central file with a matching copy at OFR. Copies of 
    the up-to-date generic DCD will also be available at the NRC's Public 
    Document Room. Questions concerning the accuracy of information in an 
    application that references this appendix will be resolved by checking 
    the master copy of the generic DCD in NRC's central file. If a generic 
    change (rulemaking) is made to the DCD pursuant to the change process 
    in Section VIII of this appendix, then at the completion of the 
    rulemaking the NRC will request approval of the Director, OFR for the 
    changed incorporation by reference and change its copies of the generic 
    DCD and notify the OFR and the design certification applicant to change 
    their copies. The Commission is requiring that the design certification 
    applicant maintain an up-to-date copy under X.A.1 of this appendix 
    because it is likely that most applicants intending to reference the 
    standard design will obtain the generic DCD from the design 
    certification applicant. Plant-specific changes to and departures from 
    the generic DCD will be maintained by the applicant or licensee that 
    references this appendix in a plant-specific DCD, under X.A.2 of this 
    appendix.
        In addition to requiring compliance with this appendix, paragraph B 
    clarifies that the conceptual design information and Westinghouse's 
    evaluation of severe accident mitigation design alternatives are not 
    considered to be part of this appendix. The conceptual design 
    information is for those portions of the plant that are outside the 
    scope of the standard design and are intermingled throughout Tier 2. As 
    provided by 10 CFR 52.47(a)(1)(ix), these conceptual designs are not 
    part of this appendix and, therefore, are not applicable to an 
    application that references this appendix. Therefore, the applicant 
    does not need to conform with the conceptual design information that 
    was provided by the design certification applicant. The conceptual 
    design information, which consists of site-specific design features, 
    was required to facilitate the design certification review. Conceptual 
    design information is neither Tier 1 nor Tier 2. Section 1.8 of Tier 2 
    identifies the location of the conceptual design information. 
    Westinghouse's evaluation of various design alternatives to prevent and 
    mitigate severe accidents does not constitute design requirements. The 
    Commission's assessment of this information is discussed in Section IV
    
    [[Page 27635]]
    
    of this SOC on environmental impacts. The detailed methodology and 
    quantitative portions of the design-specific probabilistic risk 
    assessment (PRA), as required by 10 CFR 52.47(a)(1)(v), were not 
    included in the generic DCD, as requested by NEI and the applicant for 
    design certification. The NRC agreed with the request to delete this 
    information because conformance with the deleted portions of the PRA is 
    not necessary. Also, the NRC's position is predicated in part upon 
    NEI's acceptance, in conceptual form, of a future generic rulemaking 
    that will require a COL applicant or licensee to have a plant-specific 
    PRA that updates and supersedes the design-specific PRA supporting this 
    rulemaking and maintain it throughout the operational life of the 
    facility.
        Paragraphs C and D set forth the manner in which potential 
    conflicts are to be resolved. Paragraph C establishes the Tier 1 
    description in the DCD as controlling in the event of an inconsistency 
    between the Tier 1 and Tier 2 information in the DCD. Paragraph D 
    establishes the generic DCD as the controlling document in the event of 
    an inconsistency between the DCD and either the application for 
    certification of the AP600 design (AP600 Standard Safety Analysis 
    Report) or the final safety evaluation report for the certified 
    standard design.
        Paragraph E makes it clear that design activities that are wholly 
    outside the scope of this design certification may be performed using 
    site-specific design parameters, provided the design activities do not 
    affect Tier 1 or Tier 2, or conflict with the interface requirements in 
    the DCD. This provision applies to site-specific portions of the plant, 
    such as the administration building. Because this statement is not a 
    definition, the Commission decided that the appropriate location is in 
    Section III of this appendix.
    
    D. Additional Requirements and Restrictions
    
        Section IV of this appendix sets forth additional requirements and 
    restrictions imposed upon an applicant who references this appendix. 
    Paragraph IV.A sets forth the information requirements for these 
    applicants. This appendix distinguishes between information and/or 
    documents which must actually be included in the application or the 
    DCD, versus those which may be incorporated by reference (i.e., 
    referenced in the application as if the information or documents were 
    actually included in the application), thereby reducing the physical 
    bulk of the application. Any incorporation by reference in the 
    application should be clear and should specify the title, date, 
    edition, or version of a document, and the page number(s) and table(s) 
    containing the relevant information to be incorporated by reference.
        Paragraph A.1 requires an applicant who references this appendix to 
    incorporate by reference this appendix in its application. The legal 
    effect of such incorporation by reference is that this appendix is 
    legally binding on the applicant or licensee. Paragraph A.2.a is 
    intended to make clear that the initial application must include a 
    plant-specific DCD. This assures, among other things, that the 
    applicant commits to complying with the DCD. This paragraph also 
    requires the plant-specific DCD to use the same format as the generic 
    DCD and to reflect the applicant's proposed departures and exemptions 
    from the generic DCD as of the time of submission of the application. 
    The Commission expects that the plant-specific DCD will become the 
    plant's final safety analysis report (FSAR), by including within its 
    pages, at the appropriate points, information such as site-specific 
    information for the portions of the plant outside the scope of the 
    referenced design, including related ITAAC, and other matters required 
    to be included in an FSAR by 10 CFR 50.34 and 52.79. Integration of the 
    plant-specific DCD and remaining site-specific information into the 
    plant's FSAR, will result in an application that is easier to use and 
    should minimize ``duplicate documentation'' and the attendant 
    possibility for confusion. Paragraph A.2.a is also intended to make 
    clear that the initial application must include the reports on 
    departures and exemptions as of the time of submission of the 
    application.
        Paragraph A.2.b requires that the application include the reports 
    required by paragraph X.B of this appendix for exemptions and 
    departures proposed by the applicant as of the date of submission of 
    its application. Paragraph A.2.c requires submission of plant-specific 
    technical specifications for the plant that consists of the generic 
    technical specifications from Section 16.1 of the DCD, with any changes 
    made under Section VIII.C of this appendix, and the technical 
    specifications for the site-specific portions of the plant that are 
    either partially or wholly outside the scope of this design 
    certification. The applicant must also provide the plant-specific 
    information designated in the generic technical specifications, such as 
    bracketed values.
        Paragraph A.2.d makes it clear that the applicant must provide 
    information demonstrating that the proposed site falls within the site 
    parameters for this appendix and that the plant-specific design 
    complies with the interface requirements, as required by 10 CFR 
    52.79(b). If the proposed site has a characteristic that exceeds one or 
    more of the site parameters in the DCD, then the proposed site is 
    unacceptable for this design unless the applicant seeks an exemption 
    under Section VIII of this appendix and justifies why the certified 
    design should be found acceptable on the proposed site. Paragraph A.2.e 
    requires submission of information addressing COL Action Items, which 
    are identified in the generic DCD as Combined License Information, in 
    the application. The Combined License Information identifies matters 
    that need to be addressed by an applicant that references this 
    appendix, as required by Subpart C of 10 CFR Part 52. An applicant may 
    depart from or omit these items, provided that the departure or 
    omission is identified and justified in its application (FSAR). 
    Paragraph A.2.f requires that the application include the information 
    required by 10 CFR 52.47(a) that is not within the scope of this rule, 
    such as generic issues that must be addressed, in whole or in part, by 
    an applicant that references this rule. Paragraph A.3 requires the 
    applicant to physically include, not simply reference, the proprietary 
    and safeguards information referenced in the DCD, or its equivalent, to 
    assure that the applicant has actual notice of these requirements.
        Paragraph IV.B reserves to the Commission the right to determine in 
    what manner this design certification may be referenced by an applicant 
    for a construction permit or operating license under 10 CFR Part 50. 
    This determination may occur in the context of a subsequent rulemaking 
    modifying 10 CFR Part 52 or this design certification rule, or on a 
    case-by-case basis in the context of a specific application for a 10 
    CFR Part 50 construction permit or operating license. This provision is 
    necessary because the previous design certifications were not 
    implemented in the manner that was originally envisioned at the time 
    that 10 CFR Part 52 was created. The Commission's concern is with the 
    manner in which ITAAC were developed and the lack of experience with 
    design certifications in license proceedings. Therefore, it is 
    appropriate to have some uncertainty regarding the manner in which this 
    appendix could be referenced in a 10 CFR Part 50 licensing proceeding.
    
    [[Page 27636]]
    
    E. Applicable Regulations
    
        The purpose of Section V of this appendix is to specify the 
    regulations that will be applicable and in effect (if and) when this 
    proposed design certification is approved. These regulations will 
    consist of the technically relevant regulations identified in paragraph 
    A, except for the regulations in paragraph B that will not be 
    applicable to this certified design.
        Paragraph A will identify the regulations in 10 CFR Parts 20, 50, 
    73, and 100 that are applicable to the AP600 design. The Commission's 
    determination of the applicable regulations will be made as of the date 
    specified in paragraph V.A of this appendix, which will be the date 
    that this appendix is approved by the Commission and signed by the 
    Secretary.
        In paragraph V.B of this appendix, the Commission identified the 
    regulations that do not apply to the AP600 design. The Commission has 
    determined that the AP600 design should be exempt from portions of 10 
    CFR 50.34, 50.62, and Appendix A to Part 50, as described in the FSER 
    (NUREG-1512) and summarized below:
        (1) Paragraph (a)(1) of 10 CFR 50.34--whole body dose criterion.
        This regulation sets forth dose criteria to be used in siting 
    determinations. The NRC staff performed its evaluation of the 
    radiological consequences of postulated design basis accidents for the 
    AP600 design against the dose criterion specified in 10 CFR 
    50.34(a)(1)(ii)(D) because it was the Commission's intent that the new 
    dose criterion be used for future nuclear power plants. However, when 
    the NRC codified the new reactor site criteria for nuclear power plants 
    (61 FR 65157; December 11, 1996), it made an error in the assignment of 
    applicants that could use the new dose criterion [25 rem TEDE], versus 
    those that must use the whole body criterion. The assignment of 
    applicants in 10 CFR 50.34(a)(1), who must use the whole body 
    criterion, should not have included applicants for a design 
    certification or combined license who applied prior to January 10, 1997 
    (refer to 61 FR 65158). The Commission adopted 25 rem TEDE as the new 
    dose criterion for future plant evaluation purposes, because this value 
    is essentially the same level of risk as the current criterion (61 FR 
    65160). Therefore, the Commission has determined that the special 
    circumstances described in 10 CFR 50.12(a)(2)(ii) exist in that 
    application of the 25 rem whole body criterion is not necessary to 
    achieve the underlying purpose of the rule because 25 rem TEDE is 
    essentially the same level of risk. On this basis, the Commission 
    concludes that the AP600 design review can be performed pursuant to the 
    new dose criterion [25 rem TEDE] and an exemption from the requirements 
    of 10 CFR 50.34(a)(1) is authorized by law, will not present an undue 
    risk to public health and safety, and is consistent with the common 
    defense and security.
        (2) Paragraph (f)(2)(iv) of 10 CFR 50.34--Plant Safety Parameter 
    Display Console.
        10 CFR 50.34(f)(2)(iv) requires that an application provide a plant 
    safety parameter display console that will display to operators a 
    minimum set of parameters defining the safety status of the plant, be 
    capable of displaying a full range of important plant parameters and 
    data trends on demand, and be capable of indicating when process limits 
    are being approached or exceeded. Westinghouse answered this 
    requirement, in Section 18.8.2 of the DCD, with an integrated design 
    rather than a stand-alone, add-on system, as is used at most current 
    operating plants. Specifically, Westinghouse integrated the SPDS 
    requirements into the design requirements for the alarm and display 
    systems. In NUREG-0800, the NRC staff indicated that, for applicants 
    who are in the early stages of the control room design, the ``function 
    of a separate SPDS may be integrated into the overall control room 
    design'' (p. 18.0-1). Therefore, the Commission has determined that the 
    special circumstances described in 10 CFR 50.12(a)(2)(ii) exist in that 
    the requirement for an SPDS console need not be applied in this 
    particular circumstance to achieve the underlying purpose because 
    Westinghouse has provided an acceptable alternative that accomplishes 
    the intent of the regulation. On this basis, the Commission concludes 
    that an exemption from the requirements of 10 CFR 50.34(f)(2)(iv) is 
    authorized by law, will not present an undue risk to public health and 
    safety, and is consistent with the common defense and security.
        (3) Paragraphs (f)(2)(vii), (viii), (xxvi), and (xxviii) of 10 CFR 
    50.34--Accident Source Terms in TID 14844.
        Pursuant to 10 CFR 52.47(a)(ii), an applicant for design 
    certification must demonstrate compliance with any technically relevant 
    TMI requirements in 10 CFR 50.34(f). The TMI requirements in 10 CFR 
    50.34(f)(2)(vii), (viii), (xxvi), and (xxviii) refer to the accident 
    source term in TID 14844. Specifically, 10 CFR 50.34(f)(2)(xxviii) 
    requires the evaluation of pathways that may lead to control room 
    habitability problems ``under accident conditions resulting in a TID 
    14844 source term release.'' Similar wording appears in requirements 
    (vii), (viii), and (xxvi). Westinghouse has adopted the new source term 
    technology summarized in NUREG-1465, ``Accident Source Terms for Light-
    Water Nuclear Power Plants,'' dated February 1995, not the old TID 
    14844 source term cited in 10 CFR Part 50.34(f). The Commission has 
    determined that the special circumstances described in 10 CFR 
    50.12(a)(ii) exist in that these regulations need not be applied in 
    this particular circumstance to achieve the underlying purpose because 
    Westinghouse has adopted acceptable alternatives that accomplish the 
    intent of the regulations that specify TID 14844. On this basis, the 
    Commission concludes that a partial exemption from the requirements of 
    paragraphs (f)(2)(vii), (viii), (xxvi), and (xxviii) of 10 CFR 50.34 is 
    authorized by law, will not present an undue risk to public health and 
    safety, and is consistent with the common defense and security.
        (4) Paragraph (c)(1) of 10 CFR 50.62--Auxiliary feedwater system.
        The AP600 design relies on the passive residual heat removal system 
    (PRHR) in lieu of an auxiliary or emergency feedwater system as its 
    safety-related method of removing decay heat. Westinghouse requested an 
    exemption from a portion of 10 CFR 50.62(c)(1), which requires 
    auxiliary or emergency feedwater as an alternate system for decay heat 
    removal during an ATWS event. The NRC staff concluded that Westinghouse 
    met the intent of the rule by relying on the PRHR system to remove the 
    decay heat and, thereby, met the underlying purpose of the rule. 
    Therefore, the Commission has determined that the special circumstances 
    described in 10 CFR 50.12(a)(2)(ii) exist in that the requirement for 
    an auxiliary or emergency feedwater system is not necessary to achieve 
    the underlying purpose of 10 CFR 50.62(c)(1), because Westinghouse has 
    adopted acceptable alternatives that accomplish the intent of this 
    regulation, and the exemption is authorized by law, will not present an 
    undue risk to public health and safety, and is consistent with the 
    common defense and security.
        (5) Appendix A to 10 CFR Part 50, GDC 17--Offsite Power Sources.
        Westinghouse requested a partial exemption from the requirement in 
    GDC 17 for a second offsite power supply circuit. The AP600 plant 
    design supports an exemption to this requirement by providing safety-
    related ``passive'' systems. These passive safety-
    
    [[Page 27637]]
    
    related systems only require electric power for valves and the related 
    instrumentation. The onsite Class 1E batteries and associated dc and ac 
    distribution systems can provide the power for these valves and 
    instrumentation. In addition, if no offsite power is available, it is 
    expected that the non-safety-related onsite diesel generators would be 
    available for important plant functions; however, this non-safety-
    related ac power is not relied on to maintain core cooling or 
    containment integrity. Therefore, the Commission has determined that 
    the special circumstances described in 10 CFR 50.12(a)(2)(ii) exist in 
    that the requirement need not be applied in this particular 
    circumstance to achieve the underlying purpose of having two offsite 
    power sources because the AP600 design includes an acceptable 
    alternative approach to accomplish safety functions that does not rely 
    on power from the offsite system and, therefore, accomplishes the 
    intent of the regulation. On this basis, the Commission concludes that 
    a partial exemption from the requirements of GDC 17 is authorized by 
    law, will not present an undue risk to public health and safety, and is 
    consistent with the common defense and security.
        (6) Appendix A to 10 CFR Part 50, GDC 19--whole body dose 
    criterion.
        The NRC staff used a criterion of 5 rem TEDE for evaluating the 
    radiological consequences of design basis accidents in the control room 
    of the AP600 design, under GDC 19 of Appendix A to 10 CFR Part 50. The 
    NRC staff used the 5 rem TEDE criterion to be consistent with the new 
    reactor site criteria in 10 CFR 50.34(a)(1) [61 FR 65157], although GDC 
    19 specifies . . . ``5 rem whole body, or its equivalent to any part of 
    the body''. . . The Commission adopted 25 rem TEDE as the new dose 
    criterion for plant evaluation purposes, because this value is 
    essentially the same level of risk as the current criteria (61 FR 
    65160). Therefore, the Commission has determined that the special 
    circumstances described in 10 CFR 50.12(a)(2)(ii) exist in that 
    application of the 5 rem whole body criterion is not necessary to 
    achieve the underlying purpose of the rule because 5 rem TEDE is 
    essentially the same level of risk. On this basis, the Commission 
    concludes that a partial exemption from GDC 19 is authorized by law, 
    will not present an undue risk to public health and safety, and is 
    consistent with the common defense and security.
    
    F. Issue Resolution
    
        The purpose of Section VI of this appendix is to identify the scope 
    of issues that are resolved by the Commission in this rulemaking and; 
    therefore, are ``matters resolved'' within the meaning and intent of 10 
    CFR 52.63(a)(4). The section is divided into five parts: (A) the 
    Commission's safety findings in adopting this appendix, (B) the scope 
    and nature of issues which are resolved by this rulemaking, (C) issues 
    which are not resolved by this rulemaking, (D) the backfit restrictions 
    applicable to the Commission with respect to this appendix, and (E) the 
    availability of secondary references.
        Paragraph A describes in general terms the nature of the 
    Commission's findings, and makes the finding required by 10 CFR 52.54 
    for the Commission's approval of this design certification rule. 
    Furthermore, paragraph A explicitly states the Commission's 
    determination that this design provides adequate protection of the 
    public health and safety.
        Paragraph B sets forth the scope of issues which may not be 
    challenged as a matter of right in subsequent proceedings. The 
    introductory phrase of paragraph B clarifies that issue resolution as 
    described in the remainder of the paragraph extends to the delineated 
    NRC proceedings referencing this appendix. The remainder of paragraph B 
    describes the categories of information for which there is issue 
    resolution. Specifically, paragraph B.1 provides that all nuclear 
    safety issues arising from the Atomic Energy Act of 1954, as amended, 
    that are associated with the information in the NRC staff's FSER 
    (NUREG-1512), the Tier 1 and Tier 2 information (including the 
    availability controls in Section 16.3 of the generic DCD), and the 
    rulemaking record for this appendix are resolved within the meaning of 
    Sec. 52.63(a)(4). These issues include the information referenced in 
    the DCD that are requirements (i.e., ``secondary references''), as well 
    as all issues arising from proprietary and safeguards information which 
    are intended to be requirements. Paragraph B.2 provides for issue 
    preclusion of proprietary and safeguards information. Paragraphs B.3, 
    B.4, B.5, and B.6 clarify that approved changes to and departures from 
    the DCD which are accomplished in compliance with the relevant 
    procedures and criteria in Section VIII of this appendix continue to be 
    matters resolved in connection with this rulemaking. Paragraph B.7 
    provides that, for those plants located on sites whose site parameters 
    do not exceed those assumed in Westinghouse's evaluation of severe 
    accident mitigation design alternatives (SAMDAs), all issues with 
    respect to SAMDAs arising under the National Environmental Policy Act 
    of 1969 associated with the information in the Environmental Assessment 
    for this design and the information regarding SAMDAs in Appendix 1B of 
    the generic DCD are also resolved within the meaning and intent of 
    Sec. 52.63(a)(4). In the event an exemption from a site parameter is 
    granted, the exemption applicant has the initial burden of 
    demonstrating that the original SAMDA analysis still applies to the 
    actual site parameters but, if the exemption is approved, requests for 
    litigation at the COL stage must meet the requirements of Sec. 2.714 
    and present sufficient information to create a genuine controversy in 
    order to obtain a hearing on the site parameter exemption.
        Paragraph C reserves the right of the Commission to impose 
    operational requirements on applicants that reference this appendix. 
    This provision reflects the fact that operational requirements, 
    including generic technical specifications in Section 16.1 of the DCD, 
    were not completely or comprehensively reviewed at the design 
    certification stage. Therefore, the special backfit provisions of 
    Sec. 52.63 do not apply to operational requirements. However, all 
    design changes will be controlled by the appropriate provision in 
    Section VIII of this appendix. Although the information in the DCD that 
    is related to operational requirements was necessary to support the NRC 
    staff's safety review of this design, the review of this information 
    was not sufficient to conclude that the operational requirements are 
    fully resolved and ready to be assigned finality under Sec. 52.63. As a 
    result, if the NRC wanted to change a temperature limit and that 
    operational change required a consequential change to a design feature, 
    then the temperature limit backfit would be controlled by Section VIII 
    (paragraph A or B) of this appendix. However, changes to other 
    operational issues, such as in-service testing and in-service 
    inspection programs, post-fuel load verification activities, and 
    shutdown risk that do not require a design change would not be 
    restricted by Sec. 52.63 (see VIII.C of this appendix). Paragraph C 
    does allow the NRC to impose future operational requirements (distinct 
    from design matters) on applicants who reference this design 
    certification. Also, license conditions for portions of the plant 
    within the scope of this design certification, e.g. start-up and power
    
    [[Page 27638]]
    
    ascension testing, are not restricted by Sec. 52.63. The requirement to 
    perform these testing programs is contained in Tier 1 information. 
    However, ITAAC cannot be specified for these subjects because the 
    matters to be addressed in these license conditions cannot be verified 
    prior to fuel load and operation, when the ITAAC are satisfied. 
    Therefore, another regulatory vehicle is necessary to ensure that 
    licensees comply with the matters contained in the license conditions. 
    License conditions for these areas cannot be developed now because this 
    requires the type of detailed design information that will be developed 
    after design certification. In the absence of detailed design 
    information to evaluate the need for and develop specific post-fuel 
    load verifications for these matters, the Commission is reserving the 
    right to impose license conditions by rule for post-fuel load 
    verification activities for portions of the plant within the scope of 
    this design certification.
        Paragraph D reiterates the restrictions (contained in Section VIII 
    of this appendix) placed upon the Commission when ordering generic or 
    plant-specific modifications, changes or additions to structures, 
    systems or components, design features, design criteria, and ITAAC 
    (VI.D.3 addresses ITAAC) within the scope of the certified design.
        Paragraph E provides the procedure for an interested member of the 
    public to obtain access to proprietary or safeguards information for 
    the AP600 design, in order to request and participate in proceedings 
    identified in VI.B of this appendix, viz., proceedings involving 
    licenses and applications which reference this appendix. As set forth 
    in paragraph E, access must first be sought from the design 
    certification applicant. If Westinghouse refuses to provide the 
    information, the person seeking access shall request access from the 
    Commission or the presiding officer, as applicable. Access to the 
    proprietary or safeguards information may be ordered by the Commission, 
    but must be subject to an appropriate non-disclosure agreement.
    
    G. Duration of This Appendix
    
        The purpose of Section VII of this appendix is in part to specify 
    the time period during which this design certification may be 
    referenced by an applicant for a combined license, under 10 CFR 52.55. 
    This section also states that the design certification remains valid 
    for an applicant or licensee that references the design certification 
    until the application is withdrawn or the license expires. Therefore, 
    if an application references this design certification during the 15-
    year period, then the design certification continues in effect until 
    the application is withdrawn or the license issued on that application 
    expires. Also, the design certification continues in effect for the 
    referencing license if the license is renewed. The Commission intends 
    for this appendix to remain valid for the life of the plant that 
    references the design certification to achieve the benefits of 
    standardization and licensing stability. This means that changes to or 
    plant-specific departures from information in the plant-specific DCD 
    must be made pursuant to the change processes in Section VIII of this 
    appendix for the life of the plant.
    
    H. Processes for Changes and Departures
    
        The purpose of Section VIII of this appendix is to set forth the 
    processes for generic changes to or plant-specific departures 
    (including exemptions) from the DCD. The Commission adopted this 
    restrictive change process in order to achieve a more stable licensing 
    process for applicants and licensees that reference this design 
    certification rule. Section VIII is divided into three paragraphs, 
    which correspond to Tier 1, Tier 2, and Operational requirements. The 
    language of Section VIII distinguishes between generic changes to the 
    DCD versus plant-specific departures from the DCD. Generic changes must 
    be accomplished by rulemaking because the intended subject of the 
    change is the design certification rule itself, as is contemplated by 
    10 CFR 52.63(a)(1). Consistent with 10 CFR 52.63(a)(2), any generic 
    rulemaking changes are applicable to all plants, absent circumstances 
    which render the change [``modification'' in the language of 
    Sec. 52.63(a)(2)] ``technically irrelevant.'' By contrast, plant-
    specific departures could be either a Commission-issued order to one or 
    more applicants or licensees; or an applicant or licensee-initiated 
    departure applicable only to that applicant's or licensee's plant(s), 
    similar to a Sec. 50.59 departure or an exemption. Because these plant-
    specific departures will result in a DCD that is unique for that plant, 
    Section X of this appendix requires an applicant or licensee to 
    maintain a plant-specific DCD. For purposes of brevity, this discussion 
    refers to both generic changes and plant-specific departures as 
    ``change processes.''
        Both Section VIII of this appendix and this SOC refer to an 
    ``exemption'' from one or more requirements of this appendix and the 
    criteria for granting an exemption. The Commission cautions that where 
    the exemption involves an underlying substantive requirement 
    (applicable regulation), then the applicant or licensee requesting the 
    exemption must also show that an exemption from the underlying 
    applicable requirement meets the criteria of 10 CFR 50.12.
    Tier 1 Information
        The change processes for Tier 1 information are covered in 
    paragraph VIII.A. Generic changes to Tier 1 are accomplished by 
    rulemaking that amends the generic DCD and are governed by the 
    standards in 10 CFR 52.63(a)(1). This provision provides that the 
    Commission may not modify, change, rescind, or impose new requirements 
    by rulemaking except where necessary either to bring the certification 
    into compliance with the Commission's regulations applicable and in 
    effect at the time of approval of the design certification or to ensure 
    adequate protection of the public health and safety or common defense 
    and security. The rulemakings must include an opportunity for hearing 
    with respect to the proposed change, as required by 10 CFR 52.63(a)(1), 
    and the Commission expects such hearings to be conducted in accordance 
    with 10 CFR Part 2, Subpart H. Departures from Tier 1 may occur in two 
    ways: (1) the Commission may order a licensee to depart from Tier 1, as 
    provided in paragraph A.3; or (2) an applicant or licensee may request 
    an exemption from Tier 1, as provided in paragraph A.4. If the 
    Commission seeks to order a licensee to depart from Tier 1, paragraph 
    A.3 requires that the Commission find both that the departure is 
    necessary for adequate protection or for compliance, and that special 
    circumstances are present. Paragraph A.4 provides that exemptions from 
    Tier 1 requested by an applicant or licensee are governed by the 
    requirements of 10 CFR 52.63(b)(1) and 52.97(b), which provide an 
    opportunity for a hearing. In addition, the Commission will not grant 
    requests for exemptions that may result in a significant decrease in 
    the level of safety otherwise provided by the design.
    Tier 2 Information
        The change processes for the three different categories of Tier 2 
    information, viz., Tier 2, Tier 2*, and Tier 2* with a time of 
    expiration, are set forth in paragraph VIII.B. The change process for 
    Tier 2 has the same elements as the Tier 1 change process, but some of 
    the standards for plant-specific orders and exemptions are different. 
    The Commission adopted a ``50.59-like'' change process for Tier 2 
    information,
    
    [[Page 27639]]
    
    in accordance with its SRMs on SECY-90-377 and SECY-92-287A. The 
    Commission is currently considering revisions to 10 CFR 50.59. After 
    the Section 50.59 rulemaking is complete, the Commission will determine 
    whether any comparable revisions should be made to the ``50.59-like'' 
    portion of the Tier 2 change process (see Section VIII.B.5 of this 
    appendix). As stated at the beginning of Section III, ``Section-by-
    section discussion of design certification rule,'' it is the 
    Commission's intent that this appendix emulate Appendices A and B to 10 
    CFR Part 52, at this time. Therefore, the Commission will consider 
    updating 10 CFR Part 52, including the Appendices, in an upcoming Part 
    52 rulemaking (see SECY-98-282) and it will also consider any Section 
    50.59 revisions, as they may apply to the three design certification 
    rules. However, any backfitting implications for Section VIII.B.5 of 
    the design certification rules will be covered in the Section 50.59 
    rulemaking.
        The process for generic Tier 2 changes (including changes to Tier 
    2* and Tier 2* with a time of expiration) tracks the process for 
    generic Tier 1 changes. As set forth in paragraph B.1, generic Tier 2 
    changes are accomplished by rulemaking amending the generic DCD, and 
    are governed by the standards in 10 CFR 52.63(a)(1). This provision 
    provides that the Commission may not modify, change, rescind or impose 
    new requirements by rulemaking except where necessary either to bring 
    the certification into compliance with the Commission's regulations 
    applicable and in effect at the time of approval of the design 
    certification or to assure adequate protection of the public health and 
    safety or common defense and security. If a generic change is made to 
    Tier 2* information, then the category and expiration, if necessary, of 
    the new information would also be determined in the rulemaking and the 
    appropriate change process for that new information would apply.
        Departures from Tier 2 may occur in five ways: (1) the Commission 
    may order a plant-specific departure, as set forth in paragraph B.3; 
    (2) an applicant or licensee may request an exemption from a Tier 2 
    requirement as set forth in paragraph B.4; (3) a licensee may make a 
    departure without prior NRC approval in accordance with paragraph B.5 
    [the ``50.59-like'' process]; (4) the licensee may request NRC approval 
    for proposed departures which do not meet the requirements in paragraph 
    B.5 as provided in paragraph B.5.d; and (5) the licensee may request 
    NRC approval for a departure from Tier 2* information under paragraph 
    B.6.
        Similar to Commission-ordered Tier 1 departures and generic Tier 2 
    changes, Commission-ordered Tier 2 departures cannot be imposed except 
    where necessary either to bring the certification into compliance with 
    the Commission's regulations applicable and in effect at the time of 
    approval of the design certification or to ensure adequate protection 
    of the public health and safety or common defense and security, as set 
    forth in paragraph B.3. However, the special circumstances for the 
    Commission-ordered Tier 2 departures do not have to outweigh any 
    decrease in safety that may result from the reduction in 
    standardization caused by the plant-specific order, as required by 10 
    CFR 52.63(a)(3). The Commission determined that it was not necessary to 
    impose an additional limitation similar to that imposed on Tier 1 
    departures by 10 CFR 52.63(a)(3) and (b)(1). This type of additional 
    limitation for standardization would unnecessarily restrict the 
    flexibility of applicants and licensees with respect to Tier 2, which 
    by its nature is not as safety significant as Tier 1.
        An applicant or licensee may request an exemption from Tier 2 
    information as set forth in paragraph B.4. The applicant or licensee 
    must demonstrate that the exemption complies with one of the special 
    circumstances in 10 CFR 50.12(a). In addition, the Commission will not 
    grant requests for exemptions that may result in a significant decrease 
    in the level of safety otherwise provided by the design. However, the 
    special circumstances for the exemption do not have to outweigh any 
    decrease in safety that may result from the reduction in 
    standardization caused by the exemption. If the exemption is requested 
    by an applicant for a license, the exemption is subject to litigation 
    in the same manner as other issues in the license hearing, consistent 
    with 10 CFR 52.63(b)(1). If the exemption is requested by a licensee, 
    then the exemption is subject to litigation in the same manner as a 
    license amendment.
        Paragraph B.5 allows an applicant or licensee to depart from Tier 2 
    information, without prior NRC approval, if the proposed departure does 
    not involve a change to or departure from Tier 1 or Tier 2* 
    information, technical specifications, or involves an unreviewed safety 
    question (USQ) as defined in B.5.b and B.5.c of this paragraph. The 
    technical specifications referred to in B.5.a and B.5.b of this 
    paragraph are the technical specifications in Section 16.1 of the 
    generic DCD, including bases, for departures made prior to issuance of 
    the COL. After issuance of the COL, the plant-specific technical 
    specifications are controlling under paragraph B.5. The bases for the 
    plant-specific technical specifications will be controlled by the bases 
    control procedures for the plant-specific technical specifications 
    (analogous to the bases control provision in the Improved Standard 
    Technical Specifications). The definition of a USQ in paragraph B.5.b 
    is similar to the definition in 10 CFR 50.59 and it applies to all 
    information in Tier 2 except for the information that resolves the 
    severe accident issues. The process for evaluating proposed tests or 
    experiments not described in Tier 2 will be incorporated into the 
    change process for the portion of the design that is outside the scope 
    of this design certification. Although paragraph B.5 does not 
    specifically state, the Commission has determined that departures must 
    also comply with all applicable regulations unless an exemption or 
    other relief is obtained.
        The Commission believes that it is important to preserve and 
    maintain the resolution of severe accident issues just like all other 
    safety issues that were resolved during the design certification review 
    (refer to SRM on SECY-90-377). However, because of the increased 
    uncertainty in severe accident issue resolutions, the Commission has 
    adopted separate criteria in B.5.c for determining whether a departure 
    from information that resolves severe accident issues constitutes a 
    USQ. For purposes of applying the special criteria in B.5.c, severe 
    accident resolutions are limited to design features when the intended 
    function of the design feature is relied upon to resolve postulated 
    accidents where the reactor core has melted and exited the reactor 
    vessel and the containment is being challenged (severe accidents). 
    These design features are identified in Section 1.9.5 of the DCD, with 
    other issues, and are described in other sections of the DCD. 
    Therefore, the location of design information in the DCD is not 
    important to the application of this special procedure for severe 
    accident issues. However, the special procedure in B.5.c does not apply 
    to design features that resolve so-called beyond design basis accidents 
    or other low probability events. The important aspect of this special 
    procedure is that it is limited solely to severe accident design 
    features, as defined above. Some design features may have intended 
    functions to meet ``design basis'' requirements and to resolve ``severe 
    accidents.'' If these
    
    [[Page 27640]]
    
    design features are reviewed under paragraph VIII.B.5, then the 
    appropriate criteria from either B.5.b or B.5.c are selected depending 
    upon the function being changed.
        An applicant or licensee that plans to depart from Tier 2 
    information, under VIII.B.5, must prepare a safety evaluation which 
    provides the bases for the determination that the proposed change does 
    not involve an unreviewed safety question, a change to Tier 1 or Tier 
    2* information, or a change to the technical specifications, as 
    explained above. In order to achieve the Commission's goals for design 
    certification, the evaluation needs to consider all of the matters that 
    were resolved in the DCD, such as generic issue resolutions that are 
    relevant to the proposed departure. The benefits of the early 
    resolution of safety issues would be lost if departures from the DCD 
    were made that violated these resolutions without appropriate review. 
    The evaluation of the relevant matters needs to consider the proposed 
    departure over the full range of power operation from startup to 
    shutdown, as it relates to anticipated operational occurrences, 
    transients, design basis accidents, and severe accidents. The 
    evaluation must also include a review of all relevant secondary 
    references from the DCD because Tier 2 information intended to be 
    treated as requirements is contained in the secondary references. The 
    evaluation should consider Tables 14.3-1 through 14.3-8 and 19.59-29 of 
    the generic DCD to ensure that the proposed change does not impact Tier 
    1. These tables contain various cross-references from the safety 
    analyses and probabilistic risk assessment in Tier 2 to the important 
    parameters that were included in Tier 1. Although many issues and 
    analyses could have been cross-referenced, the listings in these tables 
    were developed only for key analyses for the AP600 design. Westinghouse 
    provided more detailed cross-references for important analysis 
    assumptions that are included in Tier 1 in its revised response to RAI 
    640.60 (DCP/NRC 1440--September 15, 1998).
        If a proposed departure from Tier 2 involves a change to or 
    departure from Tier 1 or Tier 2* information, technical specifications, 
    or otherwise constitutes a USQ, then the applicant or licensee must 
    obtain NRC approval through the appropriate process set forth in this 
    appendix before implementing the proposed departure. The NRC does not 
    endorse NSAC-125, ``Guidelines for 10 CFR 50.59 Safety Evaluations,'' 
    for performing safety evaluations required by VIII.B.5 of this 
    appendix. However, the NRC will work with industry, if it is desired, 
    to develop an appropriate guidance document for processing proposed 
    changes under VIII.B of this appendix.
        A party to an adjudicatory proceeding (e.g., for issuance of a 
    combined license) who believes that an applicant or licensee has not 
    complied with VIII.B.5 when departing from Tier 2 information, may 
    petition to admit such a contention into the proceeding under B.5.f. 
    This provision was included because an incorrect departure from the 
    requirements of this appendix essentially places the departure outside 
    of the scope of the Commission's safety finding in the design 
    certification rulemaking. Therefore, it follows that properly-founded 
    contentions alleging such incorrectly-implemented departures cannot be 
    considered ``resolved'' by this rulemaking. As set forth in B.5.f, the 
    petition must comply with the requirements of Sec. 2.714(b)(2) and show 
    that the departure does not comply with paragraph B.5. Any other party 
    may file a response to the petition. If on the basis of the petition 
    and any responses, the presiding officer in the proceeding determines 
    that the required showing has been made, the matter shall be certified 
    to the Commission for its final determination. In the absence of a 
    proceeding, petitions alleging non-conformance with paragraph B.5 
    requirements applicable to Tier 2 departures will be treated as 
    petitions for enforcement action under 10 CFR 2.206.
        Paragraph B.6 provides a process for departing from Tier 2* 
    information. The creation of and restrictions on changing Tier 2* 
    information resulted from the development of the Tier 1 information for 
    the ABWR design. During this development process, the applicants for 
    design certification requested that the amount of information in Tier 1 
    be minimized to provide additional flexibility for an applicant or 
    licensee who references this appendix. Also, many codes, standards, and 
    design processes, which were not specified in Tier 1, that are 
    acceptable for meeting ITAAC were specified in Tier 2. The result of 
    these actions is that certain significant information only exists in 
    Tier 2 and the Commission does not want this significant information to 
    be changed without prior NRC approval. This Tier 2* information is 
    identified in the generic DCD with italicized text and brackets.
        Although the Tier 2* designation was originally intended to last 
    for the lifetime of the facility, like Tier 1 information, the NRC 
    determined that some of the Tier 2* information could expire when the 
    plant first achieves full (100%) power, after the finding required by 
    10 CFR 52.103(g), while other Tier 2* information must remain in effect 
    throughout the life of the facility. The determining factors were the 
    Tier 1 information that would govern these areas after first full power 
    and the NRC's judgement on whether prior approval was required before 
    implementation of the change due to the significance of the 
    information. Therefore, certain Tier 2* information listed in paragraph 
    B.6.c ceases to retain its Tier 2* designation after full power 
    operation is first achieved following the Commission finding in 10 CFR 
    52.103(g). Thereafter, that information is deemed to be Tier 2 
    information that is subject to the departure requirements in paragraph 
    B.5. By contrast, the Tier 2* information identified in paragraph B.6.b 
    retains its Tier 2* designation throughout the duration of the license, 
    including any period of renewal.
        Certain preoperational tests in paragraph B.6.c are designated to 
    be performed only for the first plant or first three plants that 
    reference this appendix. Westinghouse's basis for performing these 
    ``first-plant-only'' and ``first-three-plants-only'' preoperational 
    tests is provided in Section 14.2.5 of the DCD. The NRC staff found 
    Westinghouse's basis for performing these tests and its justification 
    for only performing the tests on the first-plant or first-three-plants 
    acceptable. The NRC staff's decision was based on the need to verify 
    that plant-specific manufacturing and/or construction variations do not 
    adversely impact the predicted performance of certain passive safety 
    systems, while recognizing that these special tests will result in 
    significant thermal transients being applied to critical plant 
    components. The NRC staff believes that the range of manufacturing or 
    construction variations that could adversely affect the relevant 
    passive safety systems will be adequately disclosed after performing 
    the designated tests on the first plant, or the first three plants, as 
    applicable. The COL action item in Section 14.4.6 of the DCD states 
    that subsequent plants shall either perform these preoperational tests 
    or justify that the results of the first-plant-only or first-three-
    plant-only tests are applicable to the subsequent plant. The Tier 2* 
    designation for these tests will expire after the first plant or first 
    three plants complete these tests, as indicated in paragraph B.6.c.
        If Tier 2* information is changed in a generic rulemaking, the 
    designation of the new information (Tier 1, 2*, or 2) would also be 
    determined in the rulemaking and the appropriate process
    
    [[Page 27641]]
    
    for future changes would apply. If a plant-specific departure is made 
    from Tier 2* information, then the new designation would apply only to 
    that plant. If an applicant who references this design certification 
    makes a departure from Tier 2* information, the new information is 
    subject to litigation in the same manner as other plant-specific issues 
    in the licensing hearing. If a licensee makes a departure, it will be 
    treated as a license amendment under 10 CFR 50.90 and the finality is 
    in accordance with paragraph VI.B.5 of this appendix. Any requests for 
    departures from Tier 2* information that affect Tier 1 must also comply 
    with the requirements in VIII.A of this appendix.
    Operational Requirements
        The change process for technical specifications and other 
    operational requirements in the DCD is set forth in paragraph VIII.C. 
    This change process has elements similar to the Tier 1 and Tier 2 
    change process in paragraphs VIII.A and VIII.B, but with significantly 
    different change standards. Because of the different finality status 
    for technical specifications and other operational requirements (refer 
    to III.F of this SOC), the Commission decided to designate a special 
    category of information, consisting of the technical specifications and 
    other operational requirements, with its own change process in 
    paragraph VIII.C. The key to using the change processes in Section VIII 
    is to determine if the proposed change or departure requires a change 
    to a design feature described in the generic DCD. If a design change is 
    required, then the appropriate change process in paragraph VIII.A or 
    VIII.B applies. However, if a proposed change to the technical 
    specifications or other operational requirements does not require a 
    change to a design feature in the generic DCD, then paragraph VIII.C 
    applies. The language in paragraph VIII.C also distinguishes between 
    generic (Section 16.1 of DCD) and plant-specific technical 
    specifications to account for the different treatment and finality 
    accorded technical specifications before and after a license is issued.
        The process in C.1 for making generic changes to the generic 
    technical specifications in Section 16.1 of the DCD or other 
    operational requirements in the generic DCD is accomplished by 
    rulemaking and governed by the backfit standards in 10 CFR 50.109. The 
    determination of whether the generic technical specifications and other 
    operational requirements were completely reviewed and approved in the 
    design certification rulemaking is based upon the extent to which an 
    NRC safety conclusion in the FSER is being modified or changed. If it 
    cannot be determined that the technical specification or operational 
    requirement was comprehensively reviewed and finalized in the design 
    certification rulemaking, then there is no backfit restriction under 10 
    CFR 50.109 because no prior position was taken on this safety matter. 
    Some generic technical specifications contain bracketed values, which 
    clearly indicate that the NRC staff's review was not complete. Generic 
    changes made under VIII.C.1 are applicable to all applicants or 
    licensees (refer to VIII.C.2), unless the change is irrelevant because 
    of a plant-specific departure.
        Plant-specific departures may occur by either a Commission order 
    under VIII.C.3 or an applicant's exemption request under VIII.C.4. The 
    basis for determining if the technical specification or operational 
    requirement was completely reviewed and approved for these processes is 
    the same as for VIII.C.1 above. If the technical specification or 
    operational requirement was comprehensively reviewed and finalized in 
    the design certification rulemaking, then the Commission must 
    demonstrate that special circumstances are present before ordering a 
    plant-specific departure. If not, there is no restriction on plant-
    specific changes to the technical specifications or operational 
    requirements, prior to issuance of a license, provided a design change 
    is not required. Although the generic technical specifications were 
    reviewed by the NRC staff to facilitate the design certification 
    review, the Commission intends to consider the lessons learned from 
    subsequent operating experience during its licensing review of the 
    plant-specific technical specifications. The process for petitioning to 
    intervene on a technical specification or operational requirement is 
    similar to other issues in a licensing hearing, except that the 
    petitioner must also demonstrate why special circumstances are present 
    (VIII.C.5).
        Finally, the generic technical specifications will have no further 
    effect on the plant-specific technical specifications after the 
    issuance of a license that references this appendix. The bases for the 
    generic technical specifications will be controlled by the change 
    process in Section VIII.C of this appendix. After a license is issued, 
    the bases will be controlled by the bases change provision set forth in 
    the administrative controls section of the plant-specific technical 
    specifications.
    
    I. Inspections, Tests, Analyses, and Acceptance Criteria (ITAAC)
    
        The purpose of Section IX of this appendix is to set forth how the 
    ITAAC in Tier 1 of this design certification rule are to be treated in 
    a license proceeding. Paragraph A restates the responsibilities of an 
    applicant or licensee for performing and successfully completing ITAAC, 
    and notifying the NRC of such completion. Paragraph A.1 makes it clear 
    that an applicant may proceed at its own risk with design and 
    procurement activities subject to ITAAC, and that a licensee may 
    proceed at its own risk with design, procurement, construction, and 
    preoperational testing activities subject to an ITAAC, even though the 
    NRC may not have found that any particular ITAAC has been successfully 
    completed. Paragraph A.2 requires the licensee to notify the NRC that 
    the required inspections, tests, and analyses in the ITAAC have been 
    completed and that the acceptance criteria have been met.
        Paragraphs B.1 and B.2 essentially reiterate the NRC's 
    responsibilities with respect to ITAAC as set forth in 10 CFR 52.99 and 
    52.103(g). Finally, paragraph B.3 states that ITAAC do not, by virtue 
    of their inclusion in the DCD, constitute regulatory requirements after 
    the licensee has received authorization to load fuel or for renewal of 
    the license. However, subsequent modifications must comply with the 
    design descriptions in the DCD unless the applicable requirements in 10 
    CFR 52.97 and Section VIII of this appendix have been complied with. As 
    discussed in III.D of this SOC, the Commission will defer a 
    determination of the applicability of ITAAC and their effect in terms 
    of issue resolution in 10 CFR Part 50 licensing proceedings to such 
    time that a Part 50 applicant decides to reference this appendix.
    
    J. Records and Reporting
    
        The purpose of Section X of this appendix is to set forth the 
    requirements for maintaining records of changes to and departures from 
    the generic DCD, which are to be reflected in the plant-specific DCD. 
    Section X also sets forth the requirements for submitting reports 
    (including updates to the plant-specific DCD) to the NRC. This section 
    of the appendix is similar to the requirements for records and reports 
    in 10 CFR Part 50, except for minor differences in information 
    collection and reporting requirements, as discussed in V of this SOC. 
    Paragraph X.A.1 of this appendix requires that a generic DCD and the 
    proprietary and safeguards information
    
    [[Page 27642]]
    
    referenced in the generic DCD be maintained by the applicant for this 
    rule. The generic DCD was developed, in part, to meet the requirements 
    for incorporation by reference, including availability requirements. 
    Therefore, the proprietary and safeguards information could not be 
    included in the generic DCD because it is not publicly available. 
    However, the proprietary and safeguards information was reviewed by the 
    NRC and, as stated in paragraph VI.B.2 of this appendix, the Commission 
    considers the information to be resolved within the meaning of 10 CFR 
    52.63(a)(4). Because this information is not in the generic DCD, the 
    proprietary and safeguards information, or its equivalent, is required 
    to be provided by an applicant for a license. Therefore, to ensure that 
    this information will be available, a requirement for the design 
    certification applicant to maintain the proprietary and safeguards 
    information was added to paragraph X.A.1 of this appendix. The 
    acceptable version of the proprietary and safeguards information is 
    identified (referenced) in the version of the DCD that is incorporated 
    into this rule. The generic DCD and the acceptable version of the 
    proprietary and safeguards information must be maintained for the 
    period of time that this appendix may be referenced.
        Paragraphs A.2 and A.3 place record-keeping requirements on the 
    applicant or licensee that references this design certification to 
    maintain its plant-specific DCD to accurately reflect both generic 
    changes to the generic DCD and plant-specific departures made pursuant 
    to Section VIII of this appendix. The term ``plant-specific'' was added 
    to paragraph A.2 and other Sections of this appendix to distinguish 
    between the generic DCD that is incorporated by reference into this 
    appendix, and the plant-specific DCD that the applicant is required to 
    submit under IV.A of this appendix. The requirement to maintain the 
    generic changes to the generic DCD is explicitly stated to ensure that 
    these changes are not only reflected in the generic DCD, which will be 
    maintained by the applicant for design certification, but that the 
    changes are also reflected in the plant-specific DCD. Therefore, 
    records of generic changes to the DCD will be required to be maintained 
    by both entities to ensure that both entities have up-to-date DCDs.
        Section X.A of this appendix does not place record-keeping 
    requirements on site-specific information that is outside the scope of 
    this rule. As discussed in III.D of this SOC, the final safety analysis 
    report required by 10 CFR 52.79 will contain the plant-specific DCD and 
    the site-specific information for a facility that references this rule. 
    The phrase ``site-specific portion of the final safety analysis 
    report'' in paragraph X.B.3.d of this appendix refers to the 
    information that is contained in the final safety analysis report for a 
    facility (required by 10 CFR 52.79) but is not part of the plant-
    specific DCD (required by IV.A of this appendix). Therefore, this rule 
    does not require that duplicate documentation be maintained by an 
    applicant or licensee that references this rule, because the plant-
    specific DCD is part of the final safety analysis report for the 
    facility.
        Paragraphs B.1 and B.2 establish reporting requirements for 
    applicants or licensees that reference this rule that are similar to 
    the reporting requirements in 10 CFR Part 50. For currently operating 
    plants, a licensee is required to maintain records of the basis for any 
    design changes to the facility made under 10 CFR 50.59. Section 
    50.59(b)(2) requires a licensee to provide a summary report of these 
    changes to the NRC annually, or along with updates to the facility 
    final safety analysis report under 10 CFR 50.71(e). Section 50.71(e)(4) 
    requires that these updates be submitted annually, or 6 months after 
    each refueling outage if the interval between successive updates does 
    not exceed 24 months.
        The reporting requirements in paragraph B.3 vary according to four 
    different time periods during a facilities' lifetime. Paragraph B.3.a 
    requires that if an applicant that references this rule decides to make 
    departures from the generic DCD, then the departures and any updates to 
    the plant-specific DCD must be submitted with the initial application 
    for a license. Under B.3.b, the applicant may submit any subsequent 
    reports and updates along with its amendments to the application 
    provided that the submittals are made at least once per year. Because 
    amendments to an application are typically made more frequently than 
    once a year, this should not be an excessive burden on the applicant. 
    Paragraph B.3.c requires that summary reports be submitted quarterly 
    during the period of facility construction. This increase in frequency 
    of summary reports of departures from the plant-specific DCD is in 
    response to the Commission's guidance on reporting frequency in its SRM 
    on SECY-90-377, dated February 15, 1991.
        Quarterly reporting of design changes during the period of 
    construction is necessary to closely monitor the status and progress of 
    the construction of the plant. To make its finding under 10 CFR 52.99, 
    the NRC must monitor the design changes made in accordance with Section 
    VIII of this appendix. The ITAAC verify that the as-built facility 
    conforms with the approved design and emphasizes design reconciliation 
    and design verification. Quarterly reporting of design changes is 
    particularly important in times where the number of design changes 
    could be significant, such as during the procurement of components and 
    equipment, detailed design of the plant at the start of construction, 
    and during preoperational testing. The frequency of updates to the 
    plant-specific DCD is not increased during facility construction. After 
    the facility begins operation, the frequency of reporting reverts to 
    the requirement in X.B.3.d, which is consistent with the requirement 
    for plants licensed under 10 CFR Part 50.
    
    IV. Finding of No Significant Environmental Impact: Availability
    
        The Commission has determined under the National Environmental 
    Policy Act of 1969, as amended (NEPA), and the Commission's regulations 
    in 10 CFR Part 51, Subpart A, that this proposed design certification 
    rule, if adopted, would not be a major Federal action significantly 
    affecting the quality of the human environment and, therefore, an 
    environmental impact statement (EIS) is not required. The basis for 
    this determination, as documented in the environmental assessment, is 
    that this amendment to 10 CFR Part 52 would not authorize the siting, 
    construction, or operation of a facility using the AP600 design; it 
    would only codify the AP600 design in a rule. The NRC will evaluate the 
    environmental impacts and issue an EIS as appropriate in accordance 
    with NEPA as part of the application(s) for the construction and 
    operation of a facility.
        In addition, as part of the environmental assessment for the AP600 
    design, the NRC reviewed Westinghouse's evaluation of various design 
    alternatives to prevent and mitigate severe accidents in Appendix 1B of 
    the AP600 Standard Safety Analysis Report (SSAR). The Commission finds 
    that Westinghouse's evaluation provides a reasonable assurance that 
    certifying the AP600 design will not exclude severe accident mitigation 
    design alternatives for a future facility that would prove cost 
    beneficial had they been considered as part of the original design 
    certification application. These issues are considered resolved for the 
    AP600 design.
        The environmental assessment (EA), upon which the Commission's 
    finding of no significant impact is based, and AP600 SSAR are available 
    for examination and copying at the NRC
    
    [[Page 27643]]
    
    Public Document Room, 2120 L Street, NW. (Lower Level), Washington, DC. 
    Single copies of the EA are also available from Jerry N. Wilson, 
    Mailstop O-12 G15, Office of Nuclear Reactor Regulation, U.S. Nuclear 
    Regulatory Commission, Washington, DC 20555.
    
    V. Paperwork Reduction Act Statement
    
        This proposed rule amends information collection requirements that 
    are subject to the Paperwork Reduction Act of 1995 (44 U.S.C. 3501 et 
    seq.). This rule has been submitted to the Office of Management and 
    Budget for review and approval of the information collection 
    requirements.
        The public reporting burden for this information collection is 
    estimated to average 8 person-hours per response, including the time 
    for reviewing instructions, searching existing data sources, gathering 
    and maintaining the data needed, and completing and reviewing the 
    information collection. The NRC is seeking public comment on the 
    potential impact of the information collections contained in the 
    proposed rule and on the following issues:
        1. Is the proposed information collection necessary for the proper 
    performance of the functions of the NRC, including whether the 
    information will have practical utility?
        2. Is the estimate of burden accurate?
        3. Is there a way to enhance the quality, utility, and clarity of 
    the information to be collected?
        4. How can the burden of the information collection be minimized, 
    including the use of automated collection techniques?
        Send comments on any aspect of this proposed information 
    collection, including suggestions for reducing the burden, to the 
    Records Management Branch (T-6 E6), U.S. Nuclear Regulatory Commission, 
    Washington, DC 20555-0001, or by Internet electronic mail at 
    [email protected]; and to the Desk Officer, Office of Information and 
    Regulatory Affairs, NEOB-10202, (3150-0151), Office of Management and 
    Budget, Washington, DC 20503.
        Comments to OMB on the information collections or on the above 
    issues should be submitted by June 21, 1999. Comments received after 
    this date will be considered if it is practical to do so, but assurance 
    of consideration cannot be given to comments received after this date.
    
    Public Protection Notification
    
        If a means used to impose an information collection does not 
    display a currently valid OMB control number, the NRC may not conduct 
    or sponsor, and a person is not required to respond to, the information 
    collection.
    
    VI. Regulatory Analysis
    
        The NRC has not prepared a regulatory analysis for this proposed 
    rule. The NRC prepares regulatory analyses for rulemakings that 
    establish generic regulatory requirements applicable to all licensees. 
    Design certifications are not generic rulemakings in the sense that 
    design certifications do not establish standards or requirements with 
    which all licensees must comply. Rather, design certifications are 
    Commission approvals of specific nuclear power plant designs by 
    rulemaking. Furthermore, design certification rulemakings are initiated 
    by an applicant for a design certification, rather than the NRC. 
    Preparation of a regulatory analysis in this circumstance would not be 
    useful because the design to be certified is proposed by the applicant 
    rather than the NRC. For these reasons, the Commission concludes that 
    preparation of a regulatory analysis is neither required nor 
    appropriate.
    
    VII. Regulatory Flexibility Act Certification
    
        In accordance with the Regulatory Flexibility Act of 1980, 5 U.S.C. 
    605(b), the Commission certifies that this proposed rulemaking will not 
    have a significant economic impact upon a substantial number of small 
    entities. This proposed rule provides for certification of a nuclear 
    power plant design. Neither the design certification applicant, nor 
    prospective nuclear power plant licensees who reference this design 
    certification rule, fall within the scope of the definition of ``small 
    entities'' set forth in the Regulatory Flexibility Act, 15 U.S.C. 632, 
    or the Small Business Size Standards set out in regulations issued by 
    the Small Business Administration in 13 CFR Part 121. Thus, this rule 
    does not fall within the purview of the act.
    
    VIII. Backfit Analysis
    
        The Commission has determined that the backfit rule, 10 CFR 50.109, 
    does not apply to this proposed rule because this amendment does not 
    impose new or changed requirements on existing 10 CFR Part 50 
    licensees. Therefore, a backfit analysis was not prepared for this 
    rule.
    
    IX. Consensus Standards
    
        The National Technology and Transfer Act of 1995 (Act), Public Law 
    104-113, requires that Federal agencies use technical standards that 
    are developed or adopted by voluntary consensus standards bodies unless 
    the use of such a standard is inconsistent with applicable law or 
    otherwise impractical. This proposed rule provides for certification of 
    a nuclear power plant design. Design certifications are not generic 
    rulemakings in the sense that design certifications do not establish 
    standards or requirements with which all licensees must comply. Rather, 
    design certifications are Commission approvals of specific nuclear 
    power plant designs by rulemaking. Furthermore, design certification 
    rulemakings are initiated by an applicant for a design certification, 
    rather than the NRC. For these reasons, the Commission concludes that 
    the Act does not apply to this proposed rule.
    
    List of Subjects in 10 CFR Part 52
    
        Administrative practice and procedure, Antitrust, Backfitting, 
    Combined license, Early site permit, Emergency planning, Fees, 
    Incorporation by reference, Inspection, Limited work authorization, 
    Nuclear power plants and reactors, Probabilistic risk assessment, 
    Prototype, Reactor siting criteria, Redress of site, Reporting and 
    record keeping requirements, Standard design, Standard design 
    certification.
        For the reasons set out in the preamble and under the authority of 
    the Atomic Energy Act of 1954, as amended; the Energy Reorganization 
    Act of 1974, as amended; and 5 U.S.C. 553; the NRC is proposing to 
    adopt the following amendment to 10 CFR Part 52.
    
    PART 52--EARLY SITE PERMITS; STANDARD DESIGN CERTIFICATIONS; AND 
    COMBINED LICENSES FOR NUCLEAR POWER PLANTS
    
        1. The authority citation for 10 CFR Part 52 continues to read as 
    follows:
    
        Authority: Secs. 103, 104, 161, 182, 183, 186, 189, 68 Stat. 
    936, 948, 953, 954, 955, 956, as amended, sec. 234, 83 Stat. 1244, 
    as amended (42 U.S.C. 2133, 2201, 2232, 2233, 2236, 2239, 2282); 
    secs. 201, 202, 206, 88 Stat. 1243, 1244, 1246, 1246 as amended (42 
    U.S.C. 5841, 5842, 5846).
    
        2. In Sec. 52.8, paragraph (b) is revised to read as follows:
    
    
    Sec. 52.8  Information collection requirements: OMB approval.
    
    * * * * *
        (b) The approved information collection requirements contained in 
    this part appear in Secs. 52.15, 52.17, 52.29, 52.35, 52.45, 52.47, 
    52.51, 52.57, 52.63, 52.75, 52.77, 52.78, 52.79, 52.89, 52.91, 52.99, 
    and appendices A, B, and C.
    
    [[Page 27644]]
    
        3. A new Appendix C to 10 CFR Part 52 is added to read as follows:
    
    Appendix C To Part 52--Design Certification Rule for the AP600 
    Design
    
    I. Introduction
    
        Appendix C constitutes the standard design certification for the 
    AP600 1 design, in accordance with 10 CFR Part 52, 
    Subpart B. The applicant for certification of the AP600 design is 
    Westinghouse Electric Company LLC.
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        \1\ AP600 is a trademark of Westinghouse Electric Company LLC
    ---------------------------------------------------------------------------
    
    II. Definitions
    
        A. Generic design control document (generic DCD) means the 
    document containing the Tier 1 and Tier 2 information and generic 
    technical specifications that is incorporated by reference into this 
    appendix.
        B. Generic technical specifications means the information, 
    required by 10 CFR 50.36 and 50.36a, for the portion of the plant 
    that is within the scope of this appendix.
        C. Plant-specific DCD means the document, maintained by an 
    applicant or licensee who references this appendix, consisting of 
    the information in the generic DCD, as modified and supplemented by 
    the plant-specific departures and exemptions made under Section VIII 
    of this appendix.
        D. Tier 1 means the portion of the design-related information 
    contained in the generic DCD that is approved and certified by this 
    appendix (hereinafter Tier 1 information). The design descriptions, 
    interface requirements, and site parameters are derived from Tier 2 
    information. Tier 1 information includes:
        1. Definitions and general provisions;
        2. Design descriptions;
        3. Inspections, tests, analyses, and acceptance criteria 
    (ITAAC);
        4. Significant site parameters; and
        5. Significant interface requirements.
        E. Tier 2 means the portion of the design-related information 
    contained in the generic DCD that is approved but not certified by 
    this appendix (hereinafter Tier 2 information). Compliance with Tier 
    2 is required, but generic changes to and plant-specific departures 
    from Tier 2 are governed by Section VIII of this appendix. 
    Compliance with Tier 2 provides a sufficient, but not the only 
    acceptable, method for complying with Tier 1. Compliance methods 
    differing from Tier 2 must satisfy the change process in Section 
    VIII of this appendix. Regardless of these differences, an applicant 
    or licensee must meet the requirement in Section III.B to reference 
    Tier 2 when referencing Tier 1. Tier 2 information includes:
        1. Information required by 10 CFR 52.47, with the exception of 
    generic technical specifications and conceptual design information;
        2. Information required for a final safety analysis report under 
    10 CFR 50.34;
        3. Supporting information on the inspections, tests, and 
    analyses that will be performed to demonstrate that the acceptance 
    criteria in the ITAAC have been met; and
        4. Combined license (COL) action items (combined license 
    information), which identify certain matters that shall be addressed 
    in the site-specific portion of the final safety analysis report 
    (FSAR) by an applicant who references this appendix. These items 
    constitute information requirements but are not the only acceptable 
    set of information in the FSAR. An applicant may depart from or omit 
    these items, provided that the departure or omission is identified 
    and justified in the FSAR. After issuance of a construction permit 
    or COL, these items are not requirements for the licensee unless 
    such items are restated in the FSAR.
        5. The investment protection short-term availability controls in 
    Section 16.3 of the DCD.
        F. Tier 2 * means the portion of the Tier 2 information, 
    designated as such in the generic DCD, which is subject to the 
    change process in VIII.B.6 of this appendix. This designation 
    expires for some Tier 2* information under VIII.B.6.
        G. All other terms in this appendix have the meaning set out in 
    10 CFR 50.2, 10 CFR 52.3, or Section 11 of the Atomic Energy Act of 
    1954, as amended, as applicable.
    
    III. Scope and Contents
    
        A. Tier 1, Tier 2 (including the investment protection short-
    term availability controls in Section 16.3), and the generic 
    technical specifications in the AP600 DCD, Revision 2 (3/99), are 
    approved for incorporation by reference by the Director of the 
    Office of the Federal Register on [Insert date of approval] in 
    accordance with 5 U.S.C. 552(a) and 1 CFR Part 51. Copies of the 
    generic DCD may be obtained from Mr. Brian A. McIntyre, Manager, 
    Advanced Plant Safety and Licensing, Westinghouse Electric Company, 
    P.O. Box 355, Pittsburgh, PA 15230-0355. A copy is also available 
    for examination and copying at the NRC Public Document Room, 2120 L 
    Street NW. (Lower Level), Washington, DC 20555-0001.
        B. An applicant or licensee referencing this appendix, in 
    accordance with Section IV of this appendix, shall incorporate by 
    reference and comply with the requirements of this appendix, 
    including Tier 1, Tier 2 (including the investment protection short-
    term availability controls in Section 16.3), and the generic 
    technical specifications except as otherwise provided in this 
    appendix. Conceptual design information in the generic DCD and the 
    evaluation of severe accident mitigation design alternatives in 
    Appendix 1B of the generic DCD are not part of this appendix.
        C. If there is a conflict between Tier 1 and Tier 2 of the DCD, 
    then Tier 1 controls.
        D. If there is a conflict between the generic DCD and either the 
    application for design certification of the AP600 design or NUREG-
    1512, ``Final Safety Evaluation Report Related to Certification of 
    the AP600 Standard Design,'' (FSER), then the generic DCD controls.
        E. Design activities for structures, systems, and components 
    that are wholly outside the scope of this appendix may be performed 
    using site-specific design parameters, provided the design 
    activities do not affect the DCD or conflict with the interface 
    requirements.
    
    IV. Additional Requirements and Restrictions
    
        A. An applicant for a license that wishes to reference this 
    appendix shall, in addition to complying with the requirements of 10 
    CFR 52.77, 52.78, and 52.79, comply with the following requirements:
        1. Incorporate by reference, as part of its application, this 
    appendix.
        2. Include, as part of its application:
        a. A plant-specific DCD containing the same information and 
    utilizing the same organization and numbering as the AP600 DCD, as 
    modified and supplemented by the applicant's exemptions and 
    departures;
        b. The reports on departures from and updates to the plant-
    specific DCD required by X.B of this appendix;
        c. Plant-specific technical specifications, consisting of the 
    generic and site-specific technical specifications, that are 
    required by 10 CFR 50.36 and 50.36a;
        d. Information demonstrating compliance with the site parameters 
    and interface requirements;
        e. Information that addresses the COL action items; and
        f. Information required by 10 CFR 52.47(a) that is not within 
    the scope of this appendix.
        3. Physically include, in the plant-specific DCD, the 
    proprietary and safeguards information referenced in the AP600 DCD.
        B. The Commission reserves the right to determine in what manner 
    this appendix may be referenced by an applicant for a construction 
    permit or operating license under Part 50.
    
    V. Applicable Regulations
    
        A. Except as indicated in paragraph B of this section, the 
    regulations that apply to the AP600 design are in 10 CFR Parts 20, 
    50, 73, and 100, codified as of [insert date final rule signed], 
    that are applicable and technically relevant, as described in the 
    FSER (NUREG-1512).
        B. The AP600 design is exempt from portions of the following 
    regulations:
        1. Paragraph (a)(1) of 10 CFR 50.34--whole body dose criterion;
        2. Paragraph (f)(2)(iv) of 10 CFR 50.34--Plant Safety Parameter 
    Display Console;
        3. Paragraphs (f)(2)(vii), (viii), (xxvi), and (xxviii) of 10 
    CFR 50.34--Accident Source Term in TID 14844;
        4. Paragraph (c)(1) of 10 CFR 50.62--Auxiliary (or emergency) 
    feedwater system;
        5. Appendix A to 10 CFR Part 50, GDC 17--Offsite Power Sources; 
    and
        6. Appendix A to 10 CFR Part 50, GDC 19--whole body dose 
    criterion.
    
    VI. Issue Resolution
    
        A. The Commission has determined that the structures, systems, 
    components, and design features of the AP600 design comply with the 
    provisions of the Atomic Energy Act of 1954, as amended, and the 
    applicable regulations identified in Section V of this appendix; and 
    therefore, provide adequate protection to the health and safety of 
    the public. A conclusion that a matter is resolved includes the 
    finding that additional or alternative structures, systems, 
    components, design features, design criteria, testing, analyses, 
    acceptance criteria, or justifications are not necessary for the 
    AP600 design.
    
    [[Page 27645]]
    
        B. The Commission considers the following matters resolved 
    within the meaning of 10 CFR 52.63(a)(4) in subsequent proceedings 
    for issuance of a combined license, amendment of a combined license, 
    or renewal of a combined license, proceedings held pursuant to 10 
    CFR 52.103, and enforcement proceedings involving plants referencing 
    this appendix:
        1. All nuclear safety issues, except for the generic technical 
    specifications and other operational requirements, associated with 
    the information in the FSER, Tier 1, Tier 2 (including referenced 
    information, which the context indicates is intended as 
    requirements, and the investment protection short-term availability 
    controls in Section 16.3), and the rulemaking record for 
    certification of the AP600 design;
        2. All nuclear safety and safeguards issues associated with the 
    information in proprietary and safeguards documents, referenced and 
    in context, are intended as requirements in the generic DCD for the 
    AP600 design;
        3. All generic changes to the DCD pursuant to and in compliance 
    with the change processes in Sections VIII.A.1 and VIII.B.1 of this 
    appendix;
        4. All exemptions from the DCD pursuant to and in compliance 
    with the change processes in Sections VIII.A.4 and VIII.B.4 of this 
    appendix, but only for that proceeding;
        5. All departures from the DCD that are approved by license 
    amendment, but only for that proceeding;
        6. Except as provided in VIII.B.5.f of this appendix, all 
    departures from Tier 2 pursuant to and in compliance with the change 
    processes in VIII.B.5 of this appendix that do not require prior NRC 
    approval;
        7. All environmental issues concerning severe accident 
    mitigation design alternatives (SAMDAs) associated with the 
    information in the NRC's environmental assessment for the AP600 
    design and Appendix 1B of the generic DCD, for plants referencing 
    this appendix whose site parameters are within those specified in 
    the SAMDA evaluation.
        C. The Commission does not consider operational requirements for 
    an applicant or licensee who references this appendix to be matters 
    resolved within the meaning of 10 CFR 52.63(a)(4). The Commission 
    reserves the right to require operational requirements for an 
    applicant or licensee who references this appendix by rule, 
    regulation, order, or license condition.
        D. Except in accordance with the change processes in Section 
    VIII of this appendix, the Commission may not require an applicant 
    or licensee who references this appendix to:
        1. Modify structures, systems, components, or design features as 
    described in the generic DCD;
        2. Provide additional or alternative structures, systems, 
    components, or design features not discussed in the generic DCD; or
        3. Provide additional or alternative design criteria, testing, 
    analyses, acceptance criteria, or justification for structures, 
    systems, components, or design features discussed in the generic 
    DCD.
        E.1. Persons who wish to review proprietary and safeguards 
    information or other secondary references in the AP600 DCD, in order 
    to request or participate in the hearing required by 10 CFR 52.85 or 
    the hearing provided under 10 CFR 52.103, or to request or 
    participate in any other hearing relating to this appendix in which 
    interested persons have adjudicatory hearing rights, shall first 
    request access to such information from Westinghouse. The request 
    must state with particularity:
        a. The nature of the proprietary or other information sought;
        b. The reason why the information currently available to the 
    public in the NRC's public document room is insufficient;
        c. The relevance of the requested information to the hearing 
    issue(s) which the person proposes to raise; and
        d. A showing that the requesting person has the capability to 
    understand and utilize the requested information.
        2. If a person claims that the information is necessary to 
    prepare a request for hearing, the request must be filed no later 
    than 15 days after publication in the Federal Register of the notice 
    required either by 10 CFR 52.85 or 10 CFR 52.103. If Westinghouse 
    declines to provide the information sought, Westinghouse shall send 
    a written response within ten (10) days of receiving the request to 
    the requesting person setting forth with particularity the reasons 
    for its refusal. The person may then request the Commission (or 
    presiding officer, if a proceeding has been established) to order 
    disclosure. The person shall include copies of the original request 
    (and any subsequent clarifying information provided by the 
    requesting party to the applicant) and the applicant's response. The 
    Commission and presiding officer shall base their decisions solely 
    on the person's original request (including any clarifying 
    information provided by the requesting person to Westinghouse), and 
    Westinghouse's response. The Commission and presiding officer may 
    order Westinghouse to provide access to some or all of the requested 
    information, subject to an appropriate non-disclosure agreement.
    
    VII. Duration of This Appendix
    
        This appendix may be referenced for a period of 15 years from 
    [Insert date 30 days after publication of the final rule in the 
    Federal Register], except as provided for in 10 CFR 52.55(b) and 
    52.57(b). This appendix remains valid for an applicant or licensee 
    who references this appendix until the application is withdrawn or 
    the license expires, including any period of extended operation 
    under a renewed license.
    
    VIII. Processes for Changes and Departures
    
    A. Tier 1 Information
    
        1. Generic changes to Tier 1 information are governed by the 
    requirements in 10 CFR 52.63(a)(1).
        2. Generic changes to Tier 1 information are applicable to all 
    applicants or licensees who reference this appendix, except those 
    for which the change has been rendered technically irrelevant by 
    action taken under paragraphs A.3 or A.4 of this section.
        3. Departures from Tier 1 information that are required by the 
    Commission through plant-specific orders are governed by the 
    requirements in 10 CFR 52.63(a)(3).
        4. Exemptions from Tier 1 information are governed by the 
    requirements in 10 CFR 52.63(b)(1) and Sec. 52.97(b). The Commission 
    will deny a request for an exemption from Tier 1, if it finds that 
    the design change will result in a significant decrease in the level 
    of safety otherwise provided by the design.
    
    B. Tier 2 Information
    
        1. Generic changes to Tier 2 information are governed by the 
    requirements in 10 CFR 52.63(a)(1).
        2. Generic changes to Tier 2 information are applicable to all 
    applicants or licensees who reference this appendix, except those 
    for which the change has been rendered technically irrelevant by 
    action taken under paragraphs B.3, B.4, B.5, or B.6 of this section.
        3. The Commission may not require new requirements on Tier 2 
    information by plant-specific order while this appendix is in effect 
    under Secs. 52.55 or 52.61, unless:
        a. A modification is necessary to secure compliance with the 
    Commission's regulations applicable and in effect at the time this 
    appendix was approved, as set forth in Section V of this appendix, 
    or to assure adequate protection of the public health and safety or 
    the common defense and security; and
        b. Special circumstances as defined in 10 CFR 50.12(a) are 
    present.
        4. An applicant or licensee who references this appendix may 
    request an exemption from Tier 2 information. The Commission may 
    grant such a request only if it determines that the exemption will 
    comply with the requirements of 10 CFR 50.12(a). The Commission will 
    deny a request for an exemption from Tier 2, if it finds that the 
    design change will result in a significant decrease in the level of 
    safety otherwise provided by the design. The grant of an exemption 
    to an applicant must be subject to litigation in the same manner as 
    other issues material to the license hearing. The grant of an 
    exemption to a licensee must be subject to an opportunity for a 
    hearing in the same manner as license amendments.
        5.a. An applicant or licensee who references this appendix may 
    depart from Tier 2 information, without prior NRC approval, unless 
    the proposed departure involves a change to or departure from Tier 1 
    information, Tier 2* information, or the technical specifications, 
    or involves an unreviewed safety question as defined in paragraphs 
    B.5.b and B.5.c of this section. When evaluating the proposed 
    departure, an applicant or licensee shall consider all matters 
    described in the plant-specific DCD.
        b. A proposed departure from Tier 2, other than one affecting 
    resolution of a severe accident issue identified in the plant-
    specific DCD, involves an unreviewed safety question if--
        (1) The probability of occurrence or the consequences of an 
    accident or malfunction of equipment important to safety previously 
    evaluated in the plant-specific DCD may be increased;
        (2) A possibility for an accident or malfunction of a different 
    type than any evaluated previously in the plant-specific DCD may be 
    created; or
    
    [[Page 27646]]
    
        (3) The margin of safety as defined in the basis for any 
    technical specification is reduced.
        c. A proposed departure from Tier 2 affecting resolution of a 
    severe accident issue identified in the plant-specific DCD, involves 
    an unreviewed safety question if--
        (1) There is a substantial increase in the probability of a 
    severe accident such that a particular severe accident previously 
    reviewed and determined to be not credible could become credible; or
        (2) There is a substantial increase in the consequences to the 
    public of a particular severe accident previously reviewed.
        d. If a departure involves an unreviewed safety question as 
    defined in paragraph B.5 of this section, it is governed by 10 CFR 
    50.90.
        e. A departure from Tier 2 information that is made under 
    paragraph B.5 of this section does not require an exemption from 
    this appendix.
        f. A party to an adjudicatory proceeding for either the 
    issuance, amendment, or renewal of a license or for operation under 
    10 CFR 52.103(a), who believes that an applicant or licensee who 
    references this appendix has not complied with VIII.B.5 of this 
    appendix when departing from Tier 2 information, may petition to 
    admit into the proceeding such a contention. In addition to 
    compliance with the general requirements of 10 CFR 2.714(b)(2), the 
    petition must demonstrate that the departure does not comply with 
    VIII.B.5 of this appendix. Further, the petition must demonstrate 
    that the change bears on an asserted noncompliance with an ITAAC 
    acceptance criterion in the case of a 10 CFR 52.103 preoperational 
    hearing, or that the change bears directly on the amendment request 
    in the case of a hearing on a license amendment. Any other party may 
    file a response. If, on the basis of the petition and any response, 
    the presiding officer determines that a sufficient showing has been 
    made, the presiding officer shall certify the matter directly to the 
    Commission for determination of the admissibility of the contention. 
    The Commission may admit such a contention if it determines the 
    petition raises a genuine issue of fact regarding compliance with 
    VIII.B.5 of this appendix.
        6.a. An applicant who references this appendix may not depart 
    from Tier 2* information, which is designated with italicized text 
    or brackets and an asterisk in the generic DCD, without NRC 
    approval. The departure will not be considered a resolved issue, 
    within the meaning of Section VI of this appendix and 10 CFR 
    52.63(a)(4).
        b. A licensee who references this appendix may not depart from 
    the following Tier 2* matters without prior NRC approval. A request 
    for a departure will be treated as a request for a license amendment 
    under 10 CFR 50.90.
        (1) Maximum fuel rod average burn-up.
        (2) Fuel principal design requirements.
        (3) Fuel criteria evaluation process.
        (4) Fire areas.
        (5) Human factors engineering.
        c. A licensee who references this appendix may not, before the 
    plant first achieves full power following the finding required by 10 
    CFR 52.103(g), depart from the following Tier 2* matters except in 
    accordance with paragraph B.6.b of this section. After the plant 
    first achieves full power, the following Tier 2* matters revert to 
    Tier 2 status and are thereafter subject to the departure provisions 
    in paragraph B.5 of this section.
        (1) Nuclear Island structural dimensions.
        (2) ASME Boiler & Pressure Vessel Code, Section III, and Code 
    Case N-284.
        (3) Design Summary of Critical Sections.
        (4) ACI 318, ACI 349, and ANSI/AISC-690.
        (5) Definition of critical locations and thicknesses.
        (6) Seismic qualification methods and standards.
        (7) Nuclear design of fuel and reactivity control system, except 
    burn-up limit.
        (8) Motor-operated and power-operated valves.
        (9) Instrumentation & control system design processes, methods, 
    and standards.
        (10) PRHR natural circulation test (first plant only).
        (11) ADS and CMT verification tests (first three plants only).
        d. Departures from Tier 2* information that are made under 
    paragraph B.6 of this section do not require an exemption from this 
    appendix.
    
    C. Operational requirements
    
        1. Generic changes to generic technical specifications and other 
    operational requirements that were completely reviewed and approved 
    in the design certification rulemaking and do not require a change 
    to a design feature in the generic DCD are governed by the 
    requirements in 10 CFR 50.109. Generic changes that do require a 
    change to a design feature in the generic DCD are governed by the 
    requirements in paragraphs A or B of this section.
        2. Generic changes to generic technical specifications and other 
    operational requirements are applicable to all applicants or 
    licensees who reference this appendix, except those for which the 
    change has been rendered technically irrelevant by action taken 
    under paragraph C.3 or C.4 of this section.
        3. The Commission may require plant-specific departures on 
    generic technical specifications and other operational requirements 
    that were completely reviewed and approved, provided a change to a 
    design feature in the generic DCD is not required and special 
    circumstances as defined in 10 CFR 2.758(b) are present. The 
    Commission may modify or supplement generic technical specifications 
    and other operational requirements that were not completely reviewed 
    and approved or require additional technical specifications and 
    other operational requirements on a plant-specific basis, provided a 
    change to a design feature in the generic DCD is not required.
        4. An applicant who references this appendix may request an 
    exemption from the generic technical specifications or other 
    operational requirements. The Commission may grant such a request 
    only if it determines that the exemption will comply with the 
    requirements of 10 CFR 50.12(a). The grant of an exemption must be 
    subject to litigation in the same manner as other issues material to 
    the license hearing.
        5. A party to an adjudicatory proceeding for either the 
    issuance, amendment, or renewal of a license or for operation under 
    10 CFR 52.103(a), who believes that an operational requirement 
    approved in the DCD or a technical specification derived from the 
    generic technical specifications must be changed may petition to 
    admit into the proceeding such a contention. Such petition must 
    comply with the general requirements of 10 CFR 2.714(b)(2) and must 
    demonstrate why special circumstances as defined in 10 CFR 2.758(b) 
    are present, or for compliance with the Commission's regulations in 
    effect at the time this appendix was approved, as set forth in 
    Section V of this appendix. Any other party may file a response 
    thereto. If, on the basis of the petition and any response, the 
    presiding officer determines that a sufficient showing has been 
    made, the presiding officer shall certify the matter directly to the 
    Commission for determination of the admissibility of the contention. 
    All other issues with respect to the plant-specific technical 
    specifications or other operational requirements are subject to a 
    hearing as part of the license proceeding.
        6. After issuance of a license, the generic technical 
    specifications have no further effect on the plant-specific 
    technical specifications and changes to the plant-specific technical 
    specifications will be treated as license amendments under 10 CFR 
    50.90.
    
    IX. Inspections, Tests, Analyses, and Acceptance Criteria (ITAAC)
    
        A.1 An applicant or licensee who references this appendix shall 
    perform and demonstrate conformance with the ITAAC before fuel load. 
    With respect to activities subject to an ITAAC, an applicant for a 
    license may proceed at its own risk with design and procurement 
    activities, and a licensee may proceed at its own risk with design, 
    procurement, construction, and preoperational activities, even 
    though the NRC may not have found that any particular ITAAC has been 
    satisfied.
        2. The licensee who references this appendix shall notify the 
    NRC that the required inspections, tests, and analyses in the ITAAC 
    have been successfully completed and that the corresponding 
    acceptance criteria have been met.
        3. In the event that an activity is subject to an ITAAC, and the 
    applicant or licensee who references this appendix has not 
    demonstrated that the ITAAC has been satisfied, the applicant or 
    licensee may either take corrective actions to successfully complete 
    that ITAAC, request an exemption from the ITAAC in accordance with 
    Section VIII of this appendix and 10 CFR 52.97(b), or petition for 
    rulemaking to amend this appendix by changing the requirements of 
    the ITAAC, under 10 CFR 2.802 and 52.97(b). Such rulemaking changes 
    to the ITAAC must meet the requirements of paragraph VIII.A.1 of 
    this appendix.
        B.1 The NRC shall ensure that the required inspections, tests, 
    and analyses in the ITAAC are performed. The NRC shall verify that 
    the inspections, tests, and analyses referenced by the licensee have 
    been successfully completed and, based solely thereon, find the 
    prescribed acceptance criteria have been met.
    
    [[Page 27647]]
    
    At appropriate intervals during construction, the NRC shall publish 
    notices of the successful completion of ITAAC in the Federal 
    Register.
        2. In accordance with 10 CFR 52.99 and 52.103(g), the Commission 
    shall find that the acceptance criteria in the ITAAC for the license 
    are met before fuel load.
        3. After the Commission has made the finding required by 10 CFR 
    52.103(g), the ITAAC do not, by virtue of their inclusion within the 
    DCD, constitute regulatory requirements either for licensees or for 
    renewal of the license; except for specific ITAAC, which are the 
    subject of a Section 103(a) hearing, their expiration will occur 
    upon final Commission action in such proceeding. However, subsequent 
    modifications must comply with the Tier 1 and Tier 2 design 
    descriptions in the plant-specific DCD unless the licensee has 
    complied with the applicable requirements of 10 CFR 52.97 and 
    Section VIII of this appendix.
    
    X. Records and Reporting
    
    A. Records
    
        1. The applicant for this appendix shall maintain a copy of the 
    generic DCD that includes all generic changes to Tier 1 and Tier 2. 
    The applicant shall maintain the proprietary and safeguards 
    information referenced in the generic DCD for the period that this 
    appendix may be referenced, as specified in Section VII of this 
    appendix.
        2. An applicant or licensee who references this appendix shall 
    maintain the plant-specific DCD to accurately reflect both generic 
    changes to the generic DCD and plant-specific departures made 
    pursuant to Section VIII of this appendix throughout the period of 
    application and for the term of the license (including any period of 
    renewal).
        3. An applicant or licensee who references this appendix shall 
    prepare and maintain written safety evaluations which provide the 
    bases for the determinations required by Section VIII of this 
    appendix. These evaluations must be retained throughout the period 
    of application and for the term of the license (including any period 
    of renewal).
    
    B. Reporting
    
        1. An applicant or licensee who references this appendix shall 
    submit a report to the NRC containing a brief description of any 
    departures from the plant-specific DCD, including a summary of the 
    safety evaluation of each. This report must be filed in accordance 
    with the filing requirements applicable to reports in 10 CFR 50.4.
        2. An applicant or licensee who references this appendix shall 
    submit updates to its plant-specific DCD, which reflect the generic 
    changes to the generic DCD and the plant-specific departures made 
    pursuant to Section VIII of this appendix. These updates shall be 
    filed in accordance with the filing requirements applicable to final 
    safety analysis report updates in 10 CFR 50.4 and 50.71(e).
        3. The reports and updates required by paragraphs B.1 and B.2 of 
    this section must be submitted as follows:
        a. On the date that an application for a license referencing 
    this appendix is submitted, the application shall include the report 
    and any updates to the plant-specific DCD.
        b. During the interval from the date of application to the date 
    of issuance of a license, the report and any updates to the plant-
    specific DCD must be submitted annually and may be submitted along 
    with amendments to the application.
        c. During the interval from the date of issuance of a license to 
    the date the Commission makes its findings under 10 CFR 52.103(g), 
    the report must be submitted quarterly. Updates to the plant-
    specific DCD must be submitted annually.
        d. After the Commission has made its finding under 10 CFR 
    52.103(g), reports and updates to the plant-specific DCD may be 
    submitted annually or along with updates to the site-specific 
    portion of the final safety analysis report for the facility at the 
    intervals required by 10 CFR 50.71(e), or at shorter intervals as 
    specified in the license.
    
        Dated at Rockville, Maryland, this 13th day of May, 1999.
    
        For the Nuclear Regulatory Commission.
    Annette L. Vietti-Cook,
    Secretary of the Commission.
    [FR Doc. 99-12623 Filed 5-19-99; 8:45 am]
    BILLING CODE 7590-01-P
    
    
    

Document Information

Published:
05/20/1999
Department:
Nuclear Regulatory Commission
Entry Type:
Proposed Rule
Action:
Proposed rule.
Document Number:
99-12623
Dates:
Submit comments by August 3, 1999. Comments received after this date will be considered if it is practical to consider them, but the Commission is only able to ensure consideration for comments received on or before this date. Requests for an informal hearing must be submitted by August 3, 1999.
Pages:
27626-27647 (22 pages)
RINs:
3150-AG23: Design Certification for AP600
RIN Links:
https://www.federalregister.gov/regulations/3150-AG23/design-certification-for-ap600
PDF File:
99-12623.pdf
CFR: (1)
10 CFR 52.8