95-17166. North Dakota Regulatory Program  

  • [Federal Register Volume 60, Number 135 (Friday, July 14, 1995)]
    [Rules and Regulations]
    [Pages 36213-36224]
    From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
    [FR Doc No: 95-17166]
    
    
    
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    DEPARTMENT OF THE INTERIOR
    
    Office of Surface Mining Reclamation and Enforcement
    
    30 CFR Part 934
    
    
    North Dakota Regulatory Program
    
    agency: Office of Surface Mining Reclamation and Enforcement (OSM), 
    Interior.
    
    action: Final rule; approval of amendment.
    
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    summary: OSM is approving, with certain exceptions and additional 
    requirements, a proposed amendment to the North Dakota regulatory 
    program (hereinafter referred to as the ``North Dakota program'') under 
    the Surface Mining Control and Reclamation Act of 1977 (SMCRA). North 
    Dakota proposed revisions pertaining to its policy document entitled 
    ``Standards for Evaluation of Revegetation Success and Recommended 
    Procedures for Pre- and Postmining Vegetation Assessments.'' The 
    amendment is intended to revise this document to be consistent with the 
    Federal regulations and to improve operational efficiency.
    
    effective date: July 14, 1995.
    
    for further information contact: Guy Pagett, Telephone: (307) 261-5776.
    
    SUPPLEMENTARY INFORMATION:
    
    I. Background on the North Dakota Program
    
        On December 15, 1980, the Secretary of the Interior conditionally 
    approved the North Dakota program. General background information on 
    the North Dakota program, including the Secretary's findings, the 
    disposition of comments, and the conditions of approval of the North 
    Dakota program can be found in the December 15, 1980, Federal Register 
    (45 FR 82214). Subsequent actions concerning North Dakota's program and 
    program amendments can be found at 30 CFR 934.12, 934.13, 934.15, 
    934.16, and 934.30.
    
    II. Proposed Amendment
    
        By letter dated February 17, 1994, North Dakota, submitted a 
    proposed amendment to its program (Amendment No. XX, administrative 
    record No. ND-U-01) pursuant to SMCRA (30 U.S.C. 1201 et seq.). North 
    Dakota submitted proposed revisions to its policy document entitled 
    ``Standards for Evaluation of Revegetation Success and Recommended 
    Procedures for Pre- and Postmining Vegetation Assessments'' 
    (hereinafter, the ``revegetation document'') in response to required 
    program amendments at 30 CFR 934.16(b) through (i), (w), and (x), and 
    at its own initiative.
        OSM announced receipt of the proposed amendment in the March 14, 
    1994, Federal Register (49 FR 11744), provided an opportunity for a 
    public hearing or meeting on its substantive adequacy, and invited 
    public comment on its adequacy (administrative record No. ND-U-05). 
    Because no one requested a public hearing or meeting, none was held. 
    The public comment period ended on April 13, 1994.
        During its review of the amendment, OSM identified concerns 
    relating to certain provisions of North Dakota's revegetation document. 
    OSM notified North Dakota of the concerns by letter dated September 9, 
    1994 (administrative record No. ND-U-10). On September 14, 1994, North 
    Dakota and OSM, during a telephone conference, discussed certain 
    provisions of OSM's September 9, 1994, issue letter (administrative 
    record No. ND-U-13). North Dakota responded in a letter dated December 
    21, 1994 (administrative record No. ND-U-14), by submitting a revised 
    amendment and additional explanatory information that addressed the 
    concerns identified by OSM.
        Based upon the revisions to and additional explanatory information 
    for the proposed program amendment submitted by North Dakota, OSM 
    reopened the public comment period in the January 19, 1995, Federal 
    Register (60 FR 3790; administrative record No. ND-U-15). The public 
    comment period ended on February 3, 1995.
        Subsequently, North Dakota requested a meeting with OSM to discuss 
    it's 
    
    [[Page 36214]]
    December 21, 1994, revisions that were made in response to OSM's 
    September 9, 1994, issue letter. OSM and North Dakota met on April 11, 
    1995 (administrative record No. ND-U-16). Thereafter, by letter dated 
    May 11, 1995 (administrative record No. ND-U-17), North Dakota 
    submitted, at its own initiative, additional revisions and explanatory 
    information to its revegetation success document.
        Based upon the revisions to and additional explanatory information 
    for the proposed program amendment submitted by North Dakota, OSM 
    reopened the public comment period in the May 23, 1995, Federal 
    Register (60 FR 27246; administrative record No. ND-U-23). The public 
    comment period ended on June 7, 1995.
    
    III. Director's Findings
        As discussed below, the Director, in accordance with SMCRA and 30 
    CFR 732.15 and 732.17, finds, with certain exceptions and additional 
    requirements, that the proposed program amendment submitted by North 
    Dakota on February 17, 1994, and as revised by it and supplemented with 
    additional explanatory information on December 21, 1994, is no less 
    effective than the corresponding Federal regulations. Accordingly, the 
    Director approves the proposed amendment.
    
    1. General Substantive Revisions to North Dakota's Revegetation 
    Document
    
        North Dakota proposed revisions to its revegetation document that 
    are general in nature in that the revisions are made throughout the 
    document and/or apply to most if not all success standards and sampling 
    techniques for all land uses. These revisions include (1) reference of 
    technical documents used and other agencies consulted during 
    development of the revegetation document, (2) limiting a permittee's 
    use of revegetation success standards and sampling techniques to those 
    approved in the revegetation document unless North Dakota and OSM 
    approval is first obtained on a case-by-case basis, (3) use of U.S. 
    Natural Resource Conservation Service (NRCS, formerly the Soil 
    Conservation Service) soil mapping units and productivity indices 
    whenever possible, rather than soil series, to develop technical 
    productivity standards, (4) use of North Dakota agricultural annual 
    county cropland yields to develop a correction factor for climatic 
    variability, (5) use of a county-wide correction factor in conjunction 
    with the NRCS yield information to adjust for climatic yield conditions 
    on land reclaimed for use as cropland or prime farmland, (6) submission 
    of aerial photos of areas used to develop standards, (7) submission of 
    maps which identify either the locations of sampling transects or the 
    sampling areas and number of randomly located sample units per area, 
    (8) submission of cover data in tabular form showing composition by 
    species, using absolute cover values with relative cover submitted to 
    aid in data interpretation, (9) submission of production data by growth 
    form, and (10) clarification that actual sample means must be used in 
    formulas that determine sample size when measuring success of 
    revegetation for bond release.
        The Federal regulations at 30 CFR 816.116(a)(1) and 817.116(a)(1) 
    require that standards for success of revegetation and statistically 
    valid sampling techniques for measuring success of revegetation shall 
    be selected by the regulatory authority and included in an approved 
    regulatory program.
        Because the proposed revisions identified above clarify and 
    generally improve North Dakota's revegetation document, the Director 
    finds that these proposed revisions are no less effective than the 
    Federal regulations at 30 CFR 816.116(a)(1) and 817.116(a)(1). The 
    Director approves the proposed revisions.
    
    2. Substantive Revisions to North Dakota's Revegetation Document 
    Proposed in Response to Required Amendments
    
        a. Chapter II, Section F, countable trees and shrubs. At 30 CFR 
    934.16(b), OSM required that North Dakota revise its revegetation 
    document or otherwise amend its program to require that at least 80 
    percent of the trees and shrubs counted to determine revegetation 
    success have been in place for at least 60 percent of the 10-year 
    period of revegetation responsibility (Finding No. 26.a, 57 FR 807, 
    821, January 9, 1992).
        North Dakota proposed to revise Chapter II, Section F, concerning 
    reclaimed lands developed for use as woodland, to require for fourth-
    stage bond release that the permittee demonstrate that 80 percent of 
    the total number of trees and shrubs planted have been in place for 60 
    percent of the liability period. In addition, North Dakota recommended 
    the use of permanent quadrats in each woodland community to document 
    the time in place requirement and required that the permittee provide 
    documentation to verify that not more than 20 percent of the number of 
    trees and shrubs present at year 4 have been replanted.
        The Federal regulations at 30 CFR 816.116(b)(3)(ii) and 
    817.116(b)(3)(ii) require, for areas to be developed for fish and 
    wildlife habitat, recreation, shelter belts, or forest products, that 
    at the time of bond release, at least 80 percent of the trees and 
    shrubs used to determine success shall have been in place for 60 
    percent of the applicable minimum period of responsibility.
        The Director finds that North Dakota's revisions of Chapter II, 
    Section F, concerning time in place revegetation success standards for 
    trees and shrubs on land reclaimed for use as woodland, are no less 
    effective than the Federal regulations at 30 CFR 816.116(b)(3)(ii) and 
    817.116(b)(3)(ii). The Director approves these proposed revisions and 
    removes the required amendment at 30 CFR 934.16(b).
        b. Chapter II, Sections F and H, ground cover. At 30 CFR 934.16(c), 
    OSM required that North Dakota revise its revegetation document to 
    require that evaluations of ground cover success be valid at the 90 
    percent confidence level (Finding No. 3, 54 FR 10141, 10142, March 10, 
    1989).
        North Dakota proposed to revise Chapter II, Section F, concerning 
    reclaimed lands developed for use as woodland, to require that ground 
    cover must be equal to or greater than 90 percent of the approved 
    standard with 90 percent statistical confidence. North Dakota also 
    proposed to revise Chapter II, Section H, concerning reclaimed lands 
    developed for use as fish and wildlife habitat/grassland, to require 
    that ground cover must be equal to or greater than that of the approved 
    reference area or standard with 90 percent statistical confidence.
        The Federal regulations at 30 CFR 816.116(a)(2) and 817.116(a)(2) 
    require that the sampling techniques for measuring success of 
    revegetation shall use a 90 percent statistical confidence interval 
    (i.e., one-sided test with a 0.10 alpha error).
        The Director finds that North Dakota's revisions of Chapter II, 
    Sections F and H, concerning the requirement to demonstrate success of 
    ground cover with 90 percent statistical confidence, are no less 
    effective than the Federal regulations at 30 CFR 816.116(a)(2) and 
    817.116(a)(2). The Director approves these proposed revisions and 
    removes the required amendment at 30 CFR 934.16(c).
        c. Chapter II, Sections F and G, woody plant stocking. At 30 CFR 
    934.16(d), OSM required that North Dakota revise its revegetation 
    document or otherwise amend its program to require that evaluations of 
    the success of woody plant stocking be valid at the 90 percent 
    confidence level (Finding No. 4, 54 FR 10141, 10142, March 10, 1989).
    
    [[Page 36215]]
    
        North Dakota proposed to revise Chapter II, Section F, concerning 
    reclaimed lands developed for use as woodland, to require that the 
    number of woody plants must be equal to or greater than the stocking of 
    live woody plants of the same life form of the approved standard with 
    90 percent statistical confidence. North Dakota proposed to revise 
    Chapter II, Section G, concerning reclaimed lands developed for use as 
    shelterbelts, to require that density and vigor must be equal to or 
    greater than that of the approved standard. North Dakota did not revise 
    this section to require that density be demonstrated with 90 percent 
    statistical confidence. However, Chapter III, Section D, of North 
    Dakota's revegetation document requires that density of woody 
    vegetation be measured either by direct count of all vegetation or by 
    the density quadrat sampling method. North Dakota proposed to revise 
    Chapter III, Section D, to require that, when using the quadrat 
    sampling method, enough samples must be taken to demonstrate that the 
    number of woody plants established equals or exceeds the approved 
    standard with 90 percent statistical confidence. The methods provided 
    in Chapter III apply to all demonstrations of woody plant density, 
    regardless of land use. Therefore, the revegetation document requires, 
    for land reclaimed for use as shelterbelts, verification of woody plant 
    density by direct count or by sampling with 90 percent statistical 
    confidence.
        The Federal regulations at 30 CFR 816.116(a)(2) and 817.116(a)(2) 
    require that the sampling techniques for measuring success of 
    revegetation shall use a 90 percent statistical confidence interval 
    (i.e., one-sided test with a 0.10 alpha error).
        The Director finds that North Dakota's revisions of Chapter II, 
    Section F and Chapter III, Section D, concerning the requirement to 
    demonstrate success of woody plant density with 90 percent statistical 
    confidence, are no less effective than the Federal regulations at 30 
    CFR 816.116(a)(2) and 816.116(a)(2). The Director approves these 
    proposed revisions and removes the required amendment at 30 CFR 
    934.16(d).
        d. Chapter II, Sections F and H, Revegetation success measurement 
    period. At 30 CFR 934.16(e), OSM required that North Dakota revise its 
    revegetation document or otherwise amend its program to require that 
    revegetation success standards for woodlands and fish and wildlife 
    habitats be met for at least the last two consecutive years of the 
    revegetation responsibility period (Finding No. 26.b, 57 FR 807, 822, 
    January 9, 1992).
        North Dakota proposed to revise Chapter II, Sections F and H, 
    concerning reclaimed lands developed for use as, respectively, (1) 
    woodland and (2) fish and wildlife habitat using annual crops, to 
    require that revegetation success must be measured during the last two 
    years, rather than the final year, of the responsibility period.
        The Federal regulations at 30 CFR 816.116(b)(3)(ii) and 
    817.116(b)(3)(ii) require that trees and shrubs counted in determining 
    success of revegetation shall have been in place for not less than two 
    growing seasons.
        The Director finds that North Dakota's revisions of Chapter II, 
    Sections F and H, concerning the requirement to measure revegetation 
    success during the last two years of the responsibility period, are no 
    less effective than the Federal regulations at 30 CFR 816.116(b)(3)(ii) 
    and 817.116(b)(3)(ii). The Director approves these proposed revisions 
    and removes the required amendment at 30 CFR 934.16(e).
        e. Chapter II, Sections F and G, revegetation success standards for 
    shelterbelts. At 30 CFR 934.16(f), OSM required that North Dakota 
    revise its revegetation document or otherwise amend its program to 
    include tree and shrub stocking and vegetative ground cover success 
    standards for all types of shelterbelts and clarify that trees and 
    shrubs must meet time-in-place requirements no less than those 
    established in 30 CFR 816.116(b)(3)(ii) (Finding No. 26.a, 57 FR 807, 
    821, January 9, 1992). As discussed below, the Director finds that 
    North Dakota's proposed revisions to Chapter II, Sections F and G, 
    concerning revegetation success standards for shelterbelts, are no less 
    effective than the Federal regulations at 30 CFR 816.116(b)(3) and 
    817.116(b)(3), and removes the required amendment at 30 CFR 934.16(f).
        i. Chapter II, Sections F and G, requirements for determining 
    revegetation success on lands developed for use as shelterbelts. North 
    Dakota proposed to revise Chapter II, Section F, concerning reclaimed 
    lands developed for use as woodland, to delete all discussion of 
    shelterbelts so that Section F is applicable only to woodland. 
    Requirements for determination of revegetation success on lands 
    developed for use as shelterbelts are included in Chapter II, Section 
    G.
        North Dakota proposed to revise Chapter II, Section G to define 
    shelterbelts as a strip or belt of trees or shrubs planted by man in or 
    adjacent to a field or next to a farmstead, feedlot, or road, and 
    synonymous with windbreak. North Dakota proposed to add the requirement 
    that the stocking of trees and shrubs normally follow current standards 
    and specifications developed by the NRCS for farmstead and field 
    windbreaks in North Dakota, but also provided for allowance of stocking 
    standards specified by the State Game and Fish Department or the State 
    Forest Service.
        North Dakota also proposed to revise Section G to specify that, 
    prior to final bond release, the permittee must demonstrate in the last 
    two years of the liability period that density and vigor are equal to 
    or greater than that of the approved standard, erosion is adequately 
    controlled, and that at least 80 percent of the trees and shrubs have 
    been in place for at least 60 percent of the liability period. In 
    addition, North Dakota requires an evaluation of the diversity, 
    seasonality, and regenerative capacity of the shelterbelt based on the 
    species stocked and planting arrangements. Regarding the time in place 
    standard, North Dakota proposed to require that the permittee provide a 
    worksheet of each shelterbelt which lists annual replantings of each 
    species and that documentation may be made by tagging or marking with 
    paint, by photographic records, or by preservation of sales receipts 
    from nurseries.
        The Federal regulations at 30 CFR 816.116(b)(3) (i) through (iii) 
    and 817.116(b)(3) (i) through (iii) require, in part, that success of 
    revegetation of shelterbelts be determined on the basis of tree and 
    shrub stocking and vegetative ground cover and include the requirements 
    that (1) permit specific or programwide minimum stocking and planting 
    arrangements shall be specified by the regulatory authority on the 
    basis of local and regional conditions and after consultation with and 
    approval by the State agencies responsible for the administration of 
    forestry and wildlife programs, (2) trees and shrubs counted in 
    determining such success shall be healthy and have been in place for 
    not less than two growing seasons, (3) at least 80 percent of the trees 
    and shrubs used to determine such success shall have been in place for 
    60 percent of the applicable minimum period of responsibility, and (4) 
    vegetative ground cover shall not be less than that required to achieve 
    the approved postmining land use.
        The Director finds that North Dakota's revisions of Chapter II, 
    Sections F and G, concerning the requirements to determine revegetation 
    success on reclaimed lands developed for use as shelterbelts, are no 
    less effective than the Federal regulations at 30 CFR 816.116(b)(3) (i) 
    through (iii) and 817.116(b)(3) (i) through (iii). The 
    
    [[Page 36216]]
    Director approves these proposed revisions.
        ii. Chapter II, Section G, replacement and nonreplacement 
    shelterbelts. North Dakota proposed to revise Chapter II, Section G to 
    (1) clarify that the standards in Section G apply to all shelterbelts 
    that are specified in the reclamation plan as a postmining land use or 
    as otherwise required as part of the approved permit, and (2) delete 
    from Section G the discussion of ``replacement'' and ``nonreplacement'' 
    shelterbelts and their associated success standards. North Dakota 
    explained in the cover letter to its May 11, 1995, revisions, that the 
    intent of the provision for shelterbelts otherwise required as part of 
    the approved permit was to give North Dakota the flexibility to 
    require, by permit condition, that certain shelterbelts not proposed as 
    part of the postmining land use may be required to meet the standards 
    in Section G.
        As discussed Finding No. e.i above, North Dakota has revised 
    Chapter II, Sections F and G to require revegetation success standards 
    for shelterbelts that are no less effective than the Federal 
    regulations at 30 CFR 816.116(b)(3) and 817.116(b)(3).
        The allowance for North Dakota to require, as a condition of permit 
    approval, shelterbelts that meet the requirements proposed in Chapter 
    II, Section G, has no counterpart in the Federal regulations. North 
    Dakota's proposal to require shelterbelts (with the requisite 
    performance standards for demonstrating success of revegetation) as a 
    condition of permit approval is not inconsistent with the Federal 
    regulations at 30 CFR 773.15(c) and 773.17, concerning permit approval 
    and permit conditions.
        Because North Dakota has proposed to require the same success 
    standards for all areas designated with the postmining land use of 
    shelterbelts, the Director finds that these proposed revisions in 
    Chapter II, Section G are no less effective than the requirements for 
    shelterbelts in the Federal regulations at 30 CFR 816.116(b)(3) and 
    817.116(b)(3), and approves the proposed revisions.
        f. Chapter II, Section H, revegetation success standards for fish 
    and wildlife habitat. At 30 CFR 934.16(g), OSM required that North 
    Dakota revise its revegetation document or otherwise amend its program 
    to require that vegetative ground cover on lands reclaimed to fish and 
    wildlife habitat equal at least 90 percent of the success standard 
    (Finding No. 7.a, 54 FR 10141, 10142, March 10, 1989).
        North Dakota proposed to revise Chapter II, Section H, concerning 
    reclaimed lands developed for use as fish and wildlife habitat 
    according to vegetation type, to require that (1) for woodland and 
    shelterbelts, the permittee address the requirements specified in, 
    respectively, Sections F and G (Section F requires that ground cover on 
    the reclaimed area equal or exceed 90 percent of the approved standard; 
    Section G requires that density and vigor equal or exceed the approved 
    standard and erosion be adequately controlled); (2) for grassland, the 
    ground cover must be equal to or greater than the approved standard; 
    and (3) for wetland, vegetation zones and dominant species must be 
    equal to those of the approved standard. North Dakota already required 
    in Section H, for annual crops, a demonstration that the height of the 
    standing grain crop or residual cover is equal to or greater than the 
    approved standard.
        The Federal regulations at 30 CFR 816.116(a)(2) and 817.116(a)(2) 
    require that the standards for success for ground cover, production, or 
    stocking shall be considered equal to the approved success standard 
    when they are not less than 90 percent of the success standard.
        The Director finds that North Dakota's revisions of Chapter II, 
    Section H, concerning the requirement that success standards for fish 
    and wildlife habitat equal or exceed at least 90 percent of the 
    approved standards for each vegetation type, are no less effective than 
    the Federal regulations at 30 CFR 816.116(a)(2) and 817.116(a)(2). The 
    Director approves the proposed revisions and removes the required 
    amendment at 30 CFR 934.16(g).
        g. Chapter II, Sections F and H, consultation and approval by State 
    forestry and wildlife agencies. At 30 CFR 934.16(h), OSM required that 
    North Dakota submit documentation that it has obtained the concurrence 
    of the appropriate State forestry and wildlife agencies with the 
    revegetation success standards for lands reclaimed to fish and wildlife 
    habitat, recreation, shelterbelt, or woodland uses, or shall submit 
    revisions to its revegetation document and North Dakota Administrative 
    Code 69-05.2-22-07 or otherwise amend its program to require such 
    concurrence on a permit specific basis (Finding No. 8, 54 FR 10141, 
    10143, March 10, 1989).
        North Dakota submitted letters of concurrence from the North Dakota 
    Forest Service and the North Dakota Game and Fish Department, dated, 
    respectively, April 21, and May 19, 1989. In these letters, the State 
    agencies concurred with the standards for woodland and fish and 
    wildlife habitat in Chapter II, Sections F and H, of North Dakota's 
    revegetation document. In its response to OSM's September 9, 1994, 
    issue letter, North Dakota explained that these 1989 concurrence 
    letters are still applicable because, although the original 
    revegetation document included shelterbelts as part of the woodland 
    section, the stocking and planting arrangements and success standards 
    for woodland and fish and wildlife habitat have not been revised since 
    the letters were obtained. North Dakota refers the permittee to 
    standards approved by the NRCS for shelterbelts (see Finding No. 2.e.i 
    above for a discussion of the requirements for shelterbelts).
        The Federal regulations at 30 CFR 816.116(b)(3)(i) and 
    817.116(b)(3)(i) require, for areas to be developed for fish and 
    wildlife habitat, recreation, shelterbelts, or forest products, that 
    minimum stocking and planting arrangements shall be specified by the 
    regulatory authority on the basis of local and regional conditions and 
    after consultation with and approval by the State agencies responsible 
    for the administration of forestry and wildlife programs.
        Based on the 1989 letters of concurrence from the North Dakota 
    Forest Service and the North Dakota Game and Fish Department, the 
    Director finds that North Dakota's revegetation document is no less 
    effective than the Federal regulations at 30 CFR 816.116(b)(3)(i) and 
    817.116(b)(3)(i), and removes the required amendment at 30 CFR 
    934.16(h).
        h. Appendix A, augmentation practices. At 30 CFR 934.16(i), OSM 
    required that North Dakota revise the definition of augmentation 
    practices in its revegetation document to be consistent with 30 CFR 
    816.116(c)(4) (Finding No. 9, 54 FR 10141, 10143, March 10, 1989).
        In Appendix A, North Dakota proposed to delete the existing 
    definition of ``augmentation practices'' (which meant those practices 
    used to reestablish or replace vegetation or make temporary 
    improvements to obtain bond release) and replace it with a definition 
    of ``augmentation practices'' meaning those practices which exceed the 
    commonly used management practices on similar unmined lands in the 
    surrounding area. North Dakota also revised Appendix A to state that 
    the use of an augmentation practice on reclaimed lands will reinitiate 
    the liability period and to provide examples of augmentation practices 
    including (1) fertilization or irrigation on cropland, hayland, and 
    pastureland, that is not used as specified in the management plan or 
    that is used in excessive 
    
    [[Page 36217]]
    amounts (based on soil tests and historic use), (2) fertilization or 
    irrigation used to boost production on native grassland, or on 
    grasslands in fish and wildlife habitat, (3) reseeding native 
    grasslands, pasturelands, or grasslands in fish and wildlife habitat to 
    reintroduce the desired species, (4) extensive replanting, plugging, or 
    addition of soil containing propagules on wetlands, (5) extensive 
    replanting in woodlands or shelterbelts, (6) any significant surface 
    modifications which redisturb the topsoil, and (7) any change in land 
    use that requires a seed mix modification to support the intended land 
    use.
        The Federal regulations at 30 CFR 816.116(c)(4) and 817.116(c)(4) 
    provide for the approval of selective husbandry practices, excluding 
    augmented seeding, fertilization, or irrigation, that would not extend 
    the period of responsibility for revegetation success and bond 
    liability, if such practices can be expected to continue as part of the 
    postmining land use or if discontinuance of the practices after the 
    liability period expires will not reduce the probability of permanent 
    revegetation success. Approved practices shall be normal husbandry 
    practices within the region for unmined lands having land uses similar 
    to the approved postmining land use of the disturbed area.
        The Director finds that North Dakota's proposed definition of 
    augmentation practices is consistent with the Federal regulations 
    concerning normal husbandry practices at 30 CFR 816.116(c)(4) and 
    817.116(c)(4). The Director approves the proposed revisions and removes 
    the required amendment at 30 CFR 934.16(i).
        i. Chapter II, Section C, NRCS consultation regarding methods for 
    measuring productivity on prime farmlands and approval for yield 
    determination methods on prime farmlands. At 30 CFR 934.16 (w) and (x), 
    OSM required that North Dakota revise its revegetation document to 
    submit evidence of, respectively, (1) NRCS (formerly the Soil 
    Conservation Service) consultation regarding the approved methodologies 
    for measuring productivity on prime farmlands and (2) NRCS concurrence 
    regarding the approved methods for determining yield standards for 
    prime farmlands (Finding Nos. 28.a and b, 57 FR 807, 823, January 9, 
    1992).
        North Dakota submitted with its revised amendment a December 15, 
    1994, letter from the NRCS in which the NRCS stated that it had 
    reviewed and concurred with standards and sampling procedures for 
    proving reclamation success on prime farmlands that are outlined in 
    North Dakota's revegetation document. The NRCS identified its Soil Tech 
    Note 2, dated 1987, as the most current reference guideline concerning 
    productivity indexes and agreed that the sampling designs are adequate. 
    The NRCS also stated that the use of small grains to prove production 
    is applicable in the area because corn or other deep rooting crops are 
    not generally grown in west and west central North Dakota.
        The Federal regulation at 30 CFR 823.15(b)(2) requires, in part, 
    that prime farmland soil productivity shall be measured using 
    statistically valid sampling techniques that are approved by the 
    regulatory authority in consultation with the NRCS. The Federal 
    regulation at 30 CFR 823.15(b)(6) requires that the reference crop on 
    which restoration of soil productivity is proven shall be selected from 
    the crops most commonly produced on the surrounding prime farmland and 
    that where row crops are the dominant crops grown on prime farmland in 
    the area, the row crop requiring the greatest rooting depth shall be 
    chosen as one of the reference crops. The Federal regulation at 30 CFR 
    823.15(b)(7) requires the NRCS concurrence regarding the approved 
    methods for determining yield standards for prime farmlands.
        Based on the December 15, 1994, NRCS letter to North Dakota, the 
    Director finds that North Dakota's revegetation document revisions are 
    no less effective than the Federal regulations at (1) 30 CFR 823.15(b), 
    concerning consultation and concurrence with the NRCS for prime 
    farmlands, and (2) 30 CFR 823.15(b)(6), concerning the use of small 
    grains (spring wheat) rather than corn or other deep rooting crops to 
    prove production. The Director removes the required amendments at 30 
    CFR 934.16 (w) and (x).
    
    3. Substantive Revisions to North Dakota's Revegetation Document 
    Proposed as State Initiatives
        a. Chapter II, Section C, demonstration of productivity prior to 
    bond release on prime farmland. North Dakota proposed to revise Chapter 
    II, Section C, to require for third-stage (equivalent to the Federal 
    program's phase II) bond release on prime farmland, that productivity 
    must be equal to or greater than that of the approved reference area or 
    standard with 90 percent statistical confidence. This is identical to 
    the requirement for third-stage bond release on prime farmland in North 
    Dakota's rule at North Dakota Administrative Code (NDAC) 69-05.2-22-
    07(3)(c). The revegetation document at Chapter 11, Section C and North 
    Dakota's rule at NDAC 69-05.2-22-07(4)(d) require for final or fourth-
    stage (equivalent to the Federal program's phase III) bond release on 
    prime farmland that productivity equal to or greater than the standard 
    must be demonstrated in each of the last 3 consecutive growing seasons 
    of the responsibility period. In addition, North Dakota's rule at NDAC 
    69-05.2-26-05(3)(c) requires that the measurement period for 
    determining crop production is that specified in NDAC 69-05.2-22-
    07(4)(d) for fourth-stage bond release on prime farmland described 
    above).
        The Federal regulations at 30 CFR 800.40(c)(2) require that no part 
    of a phase II bond shall be released until soil productivity for prime 
    farmland has returned to the equivalent levels of yield as nonmined 
    land of the same soil type in the surrounding area under equivalent 
    management practices as determined from the soil survey performed 
    pursuant to Section 507(b)(16) of the Act and 30 CFR Part 823. The 
    Federal regulations at 30 CFR 823.15(b)(3) require that the measurement 
    period for determining average annual crop production (yield) shall be 
    a minimum of 3 crop years prior to release of the operator's 
    performance bond. The Federal regulations at 30 CFR 823.15(b)(5) 
    require that restoration of soil productivity shall be considered 
    achieved when the average yield during the measurement period equals or 
    exceeds the average yield of the reference crop established for the 
    same period for nonmined soils of the same or similar texture or slope 
    phase of the soil series in the surrounding area under equivalent 
    management practices. Therefore, the Federal regulations at 30 CFR 
    800.40, concerning phase II bond release on prime farmland, and 30 CFR 
    823.15(b), concerning the measurement for success of productivity on 
    prime farmland prior to bond release, clearly require a successful 
    demonstration of productivity using 3 years of data prior to phase II 
    bond release (equivalent to North Dakota's third-stage bond release).
        North Dakota's existing rule at NDAC 69-05.2-22-07(3)(c) and 
    proposed revision in Chapter II, Section C in its revegetation document 
    require that a permittee demonstrate productivity on prime farmland at 
    third-stage bond release. However, North Dakota's existing rules at 
    NDAC 69-05.2-22-07(4)(d) and 69-05.2-26-05(3)(c) and Chapter II, 
    Section C in its revegetation document require that the 3-year 
    measurement period for making a demonstration of productivity occur 
    prior to fourth-stage bond release. The 
    
    [[Page 36218]]
    Director finds that North Dakota's rules at NDAC 69-05.2-26-05(3)(c) 
    and 69-05.2-22-07(3)(c), and its revegetation document at Chapter II, 
    Section C, concerning the requirement for third-stage bond release on 
    prime farmland, to the extent that they do not require the permittee to 
    demonstrate the success of productivity on prime farmland with 3 years 
    of data, are less effective than the Federal regulations at 30 CFR 
    800.40 and 823.15. The Director approves the revision proposed in 
    Chapter II, Section C of the revegetation document that requires prime 
    farmland productivity to be equal to or greater than that of the 
    approved reference area or standard with 90 percent statistical 
    confidence prior to third-stage bond release. However, the Director 
    also requires that North Dakota further revise Chapter II, Section C in 
    the revegetation document and its rules at NDAC 69-05.2-26-05(3)(c) and 
    69-05.2-22-07(3)(c) to require that the permittee demonstrate 
    restoration of productivity on prime farmland using 3 crop years at 
    third-stage bond release. OSM recommends that North Dakota then revise 
    NDAC 69-05.2-22-07(4)(d) to delete the fourth-stage bond release 
    requirement on prime farmland for successful productivity during the 
    last 3 consecutive growing seasons.
        b. Chapter II, Section E, demonstration of diversity, seasonality, 
    and permanence prior to fourth-stage bond release on tame pastureland. 
    North Dakota proposed to revise Chapter II, Section E, to remove 
    existing discussions concerning the evaluation of reclaimed vegetation 
    for diversity, seasonality, and permanence on areas developed for use 
    as tame pastureland. However, North Dakota also proposed to revise 
    Chapter II, Section E to require that (1) all species used in 
    determining ground cover must be perennial species not detrimental to 
    the land use and (2) all species included in the approved seed mixture 
    must be present at the time of final bond release.
        The Federal regulations at 30 CFR 816.111(a)(1) and 817.111(a)(1) 
    require the permittee to establish on regraded areas and on all other 
    disturbed areas (except water areas and surface areas of roads that are 
    approved as part of the postmining land use) a vegetative cover that is 
    in accordance with the approved permit and reclamation plan and that is 
    diverse, effective, and permanent. Additionally, the Federal 
    regulations at 30 CFR 816.111(b)(2) and 817.111(b)(2) require that the 
    reestablished plant species have the same seasonal characteristics of 
    growth as the original vegetation. Finally, the Federal regulations at 
    30 CFR 816.116(a) and 817.116(a) require that the success of 
    revegetation shall be judged on the effectiveness of the vegetation for 
    the approved postmining land use, the extent of cover compared to the 
    cover occurring in natural vegetation of the area, and the general 
    requirements of Section 816.111.
        Because North Dakota proposed that only perennial species can be 
    used in determining the success of ground cover, North Dakota has 
    proposed in its revegetation document, in effect, to require an 
    evaluation of permanence. North Dakota also proposed that all species 
    included in the approved seed mixture must be present at the time of 
    final bond release. Because the approved seed mix is designed to attain 
    the diversity and seasonality required to support the approved 
    postmining land use, North Dakota has proposed in its revegetation 
    document, in effect, to require an evaluation of diversity and 
    seasonality on land reclaimed for use as tame pastureland. Therefore, 
    although North Dakota proposed deletion of existing discussions 
    concerning diversity, seasonality, and permanence on tame pastureland, 
    it also proposed to include requirements for evaluation of diversity, 
    seasonality, and permanence that are consistent with the Federal 
    regulations at 30 CFR 816.111(a)(1) and (b)(2), 817.111(a)(1) and 
    (b)(2), 816.116(a), and 817.116(a).
        Therefore, the Director finds that North Dakota's proposed 
    revisions in Chapter II, Section E of the revegetation document, 
    concerning the evaluation of diversity, seasonality, and permanence on 
    land reclaimed for use as tame pastureland, are no less effective than 
    the Federal regulations at 30 CFR 816.111 (a)(1) and (b)(2), 817.111 
    (a)(1) and (b)(2), 816.116(a), and 817.116(a), and approves the 
    proposed revisions.
        c. Chapter II, Section E, development of a productivity standard on 
    tame pastureland using 50 percent of the yield of a suitability group 
    or soil series most similar to an unrated soil series. North Dakota 
    proposed to revise Chapter II, Section E to allow estimated yield 
    values to be used for those soil groups that are not suited for pasture 
    or hayland. North Dakota proposed that these yield values be derived 
    using 50 percent of the yield of the suitability group or soil series 
    most similar to them. Fifty percent of the yield was selected, based on 
    NRCS recommendations, since these soils are rated non-suitable due to 
    machinery limitations and erosion rather than productivity potential.
        The Federal regulations at 30 CFR 816.116(a)(2) and 817.116(a)(2) 
    require that revegetation success standards include criteria 
    representative of unmined lands to evaluate the appropriate vegetation 
    parameters of ground cover, production, or stocking.
        In response to OSM's September 9, 1994, issue letter, North Dakota 
    submitted a December 15, 1994, NRCS letter in which the NRCS stated 
    that it has recommended estimating productivity values for soil groups 
    not suited for pasture or hayland by using 50 percent of the yield of 
    the suitability group or soil series most similar to the unrated one. 
    The NRCS further stated that most of these areas are steep, shallow to 
    bedrock, or strongly saline and that there are minimal acreage of these 
    areas in the coal mining region. Finally, the NRCS stated that although 
    it has not compiled data to support using the 50 percent productivity 
    level, it believes that using 50 percent of the productivity level of 
    similar nonrated soils adequately describes production on these sites.
        Based on the December 15, 1994, NRCS letter to North Dakota, the 
    Director finds that North Dakota's proposed method for estimating 
    yields on unrated soils reclaimed for use as tame pastureland is no 
    less effective than the Federal regulations at 30 CFR 816.116(a)(2) and 
    817.116(a)(2) and approves the proposed revision.
        d. Chapter II, Section H, classification of wetland vegetation on 
    reclaimed lands developed for use as fish and wildlife habitat. North 
    Dakota proposed to revise Chapter II, Section H, concerning wetlands on 
    land reclaimed for use as fish and wildlife habitat, to delete the 
    State wetland classification system of temporary, seasonal, semi-
    permanent, and permanent, and to add the classification system for 
    premining assessments described by Stewart and Kantrud (Classes I 
    through VI). In addition, North Dakota proposed to add the requirement 
    that the total acreage of postmine wetland, including Class I and II's, 
    prior to final bond release for the mine must equal the total premine 
    acreage. North Dakota did not propose to revise any of the standards 
    applicable to evaluating the success of reclaimed wetland vegetation.
        The Federal regulations at 30 CFR 816.111, 816.116, 817.111, and 
    817.116, concerning requirements for success of revegetation, including 
    requirements for revegetation success on land reclaimed for use as fish 
    and wildlife habitat, do not include requirements specific to wetland 
    vegetation. North Dakota's proposed revisions concerning wetland 
    classification and replacement go beyond the requirements of, and are 
    not inconsistent with, the Federal 
    
    [[Page 36219]]
    regulations at 30 CFR 816.111, 816.116, 817.111, and 817.116.
        Therefore, the Director finds that North Dakota's proposed 
    revisions in Chapter II, Section H of the revegetation document, 
    concerning wetlands on land reclaimed for use as fish and wildlife 
    habitat, are no less effective than the Federal regulations at 30 CFR 
    816.111, 816.116, 817.111, and 817.116, and approves the proposed 
    revisions.
        e. Chapter II, Section I, requirements for revegetation success on 
    reclaimed lands developed for use as recreation, residential, 
    industrial, and commercial. North Dakota proposed to revise its 
    revegatation document by creating a new Section I in Chapter II. 
    Proposed Section I includes the requirements for success of 
    revegatation on lands reclaimed for use as recreation, residential, and 
    industrial and commercial. North Dakota proposed to require on areas 
    developed for recreation, residential, and industrial and commercial 
    land uses, for both third and fourth-stage bond release, establishment 
    of vegetation sufficient to control erosion and documentation showing 
    that the areas are not contributing suspended solids to streamflow or 
    runoff outside the permit area. North Dakota proposed (1) a technical 
    standard for establishment of revegetation, measured with a point 
    frame, of either 73 percent total cover based on basal hits or 83 
    percent total cover based on first hits, (2) the requirement that live 
    cover included in the standard must be perennial species not 
    detrimental to the land use, and (3) that either standard must be 
    achieved with 90 percent statistical confidence. North Dakota's rules 
    at NDAC 69-05.2-22-07(4)(j) require that within 2 years after 
    completion of grading or soil replacement, the ground cover of living 
    plants must not be less than required to control erosion on areas to be 
    developed for recreation, water areas, residential, or industrial and 
    commercial uses.
        For areas developed for residential, or industrial and commercial 
    land uses, the Federal regulations at 30 CFR 816.116(b)(4) and 
    817.116(b)(4) require that the vegetative ground cover shall not be 
    less than that required to control erosion.
        For areas developed for use as recreation, the Federal regulations 
    at 30 CFR 816.116(b)(3) (i) through (iii) and 817.116(b)(3) (i) through 
    (iii) require, in part, that success of revegetation be determined on 
    the basis of tree and shrub stocking and vegetative ground cover and 
    include the requirements that (1) permit specific or programwide 
    minimum stocking and planting arrangements shall be specified by the 
    regulatory authority on the basis of local and regional conditions and 
    after consultation with and approval by the State agencies responsible 
    for the administration of forestry and wildlife programs, (2) trees and 
    shrubs counted in determining such success shall be healthy and have 
    been in place for not less than two growing seasons, (3) at least 80 
    percent of the trees and shrubs used to determine such success shall 
    have been in place for 60 percent of the applicable minimum period of 
    responsibility, and (4) vegetative ground cover shall not be less than 
    that required to achieve the approved postmining land use.
        The Director finds that proposed Chapter II, Section I in North 
    Dakota's revegetation document, with respect to areas developed for 
    residential or industrial and commercial land uses, is no less 
    affective than the Federal regulations at 30 CFR 816.116(b)(4) and 
    817.116(b)(4).
        However, on areas developed for a recreation land use, neither the 
    North Dakota rule nor its revegetation document require revegetation 
    success standards for tree and shrub stocking and vegetative ground 
    cover based on consultation with and approval from the State agencies 
    responsible for the administration of forestry and wildlife programs. 
    Therefore, with respect to areas developed for a recreation land use, 
    the Director finds that the North Dakota rules at NDAC 69-05.2-22-
    07(4)(j) and Chapter II, Section I in the revegetation document are 
    less effective than the Federal regulations at 30 CFR 816.116(b)(3) and 
    817.116(b)(3). With the exception that Chapter II, Section I does not 
    include complete requirements for measuring the success of revegetation 
    on land reclaimed for use as recreation, the Director approves the 
    revegetation success standards and sampling techniques proposed by 
    North Dakota in Chapter II, Section I of its revegetation document for 
    areas developed for recreation, residential, or industrial and 
    commercial land uses. With respect to areas developed for a recreation 
    land use, the Director requires that North Dakota (1) revise its rule 
    at NDAC 69-05.2-22-07(4)(j) and Chapter II, Section I in its 
    revegetation document to require tree and shrub stocking standards that 
    (a) have been approved by the State agencies responsible for forestry 
    and wildlife programs and (b) meet all other requirements for tree and 
    shrub standards included in 30 CFR 816.116(b)(3), and (2) provide 
    evidence of consultation with and approval from the State agencies 
    responsible for forestry and wildlife programs for the ground cover 
    standard, concerning a recreation land use, proposed in Chapter II, 
    Section I.
        f. Chapter III, Section C, sample design and sample size adequacy. 
    North Dakota proposed to revise Chapter III, Section C, to (1) require 
    that the determination of an adequate sample size include an initial 
    sampling to obtain estimates of the mean and variance of each site type 
    or reference area; (2) specify a minimum number of samples when hand 
    sampling to determine (a) total production and cover on native 
    grassland and tame pastureland, (b) production on cropland, or (c) 
    total cover; and (3) require that the mean and variance derived from 
    the initial sampling be used to calculate adequate sample size using 
    (a) a two-stage sampling procedure, (b) a procedure using the standard 
    error as a percentage of the mean, or (c) a procedure described for 
    comparing two different populations (e.g., reference area and reclaimed 
    area). Each of these procedures for determining sample size are based 
    on either a normal or binomial distribution of the population when 
    parametric statistics are used to evaluate the revegetation data 
    collected from the reclaimed area.
        The Federal regulations at 30 CFR 816.116(a)(2) and 817.116(a)(2) 
    require that the sampling techniques for measuring revegetation success 
    shall use a 90-percent statistical confidence interval (i.e., one-sided 
    test with a 0.10 alpha error).
        North Dakota's proposed revisions of Chapter III, Section C, 
    concerning sample design, are consistent with the Federal regulations 
    at 30 CFR 816.116(a)(2) and 817.116(a)(2) in that North Dakota has 
    clearly required that all sampling techniques shall use a 90 percent 
    statistical confidence level.
        North Dakota also proposed to revise Chapter III, Section C, 
    concerning sample design to state that, in some cases, the sample size 
    derived from a formula may appear to be unreasonably large due to non-
    parametric or non-normal distributions and that North Dakota will 
    evaluate such cases and establish a maximum sample size.
        The distribution of (1) vegetative cover in the arid west and (2) 
    shrub density throughout the west often do not exhibit normal or 
    binomial characteristics, and the use of non-parametric statistics may 
    be appropriate for evaluation of the revegetation data collected from 
    these reclaimed environment. Because North Dakota's proposed 
    requirement that all sampling techniques use a 90 percent statistical 
    confidence level applies whether 
    
    [[Page 36220]]
    parametric or non-parametric statistics are used to evaluate the data 
    collected, North Dakota's provision concerning non-parametric 
    statistics is consistent with the requirements for measuring for 
    success of revegetation with 90 percent statistical confidence in the 
    Federal regulations at 30 CFR 816.116(a)(2) and 817.116(a)(2).
        Therefore, the Director finds that North Dakota's proposed 
    revisions of Chapter III, Section C in its revegetation document, 
    concerning sampling design, are no less effective than the Federal 
    regulations at 30 CFR 816.116(a)(2) and 817.116(a)(2), and approves the 
    proposed revisions.
        g. Chapter III, Section D, the sampling procedures allowed for 
    demonstration of productivity of annual crops on cropland and prime 
    farmland. North Dakota proposed to revise Chapter III, Section D, to 
    provide methods for the demonstration of production on areas reclaimed 
    for production of annual crops (cropland and prime farmland). North 
    Dakota proposed to allow the use of (1) entire field harvest; (2) 
    combined sampling, where sampling units or strips must be distributed 
    throughout the entire field and the number of strips needed must be 
    determined using a sample adequacy formula that reflects 90 percent 
    statistical confidence; (3) hand sampling, which are limited to areas 
    where the cropland reference area standard or the NRCS cropland 
    technical standard with a control area used for climatic correction is 
    used, and where both the reclaimed and the reference or control areas 
    are hand sampled in the same manner (the number of samples needed must 
    be determined using a sample adequacy formula that reflects 90 percent 
    statistical confidence); or (4) representative strips.
        With respect to the use of representative strips, North Dakota 
    proposed to require at least three representative strips of adequate 
    size must be established which must reflect the variability in soil 
    redistribution thickness, landscape forms, and reclamation age 
    occurring in the larger reclaimed areas they represent. In addition, 
    each strip must extend across the entire tract they represent and, to 
    the extent possible considering the above factors, should be equally 
    spaced across the entire tract. The total acreage of the representative 
    strips which must be cropped each year must, at a minimum, equal ten 
    percent of the entire reclaimed tract they represent. Separate 
    representative strips must be established for each landowner, unless 
    the landowner agrees that other representative strips having the same 
    characteristics are adequate to represent his or her reclaimed land. A 
    map showing the location of the strips must be approved by North Dakota 
    prior to final selection. North Dakota required that the methods used 
    to harvest the representative areas must reflect a 90 percent 
    statistical confidence interval and recommended that the representative 
    strips be entirely harvested to obtain a single yield value.
    North Dakota also submitted a NRCS letter, dated December 15, 1994, 
    which documented NRCS consultation regarding the proposed sampling 
    techniques. The NRCS stated that it agreed that the sampling designs 
    were adequate, but recommended whole-field harvest to eliminate any 
    question of accuracy.
        The Federal regulations at 30 CFR 816.116(a) (1) and (2) and 
    817.116(a) (1) and (2) require that statistically valid sampling 
    techniques be included in the approved program and that the sampling 
    techniques for measuring success shall use a 90-percent statistical 
    confidence interval (i.e., one-sided test with a 0.10 alpha error). For 
    prime farmland, the Federal regulations at 30 CFR 823.15(b)(2) require 
    that soil productivity be measured on a representative sample or on all 
    of the mined and reclaimed area and that a statistically valid sampling 
    technique at a 90-percent or greater statistical confidence level shall 
    be used as approved by the regulatory authority in consultation with 
    the NRCS (formerly the Soil Conservation Service).
        The Director finds that North Dakota's proposed methods for the 
    demonstration of production on areas reclaimed for production of annual 
    crops (cropland and prime farmland), including entire field harvest, 
    combined sampling, and hand sampling, Chapter III, Section D are no 
    less effective than the requirements of 30 CFR 816.116(a)(2) and 
    817.116(a)(2).
        Because North Dakota (1) proposed criteria for establishment of 
    representative strips within the reclaimed area that should ensure that 
    the strips will be representative at a 90-percent statistical 
    confidence level of the total reclaimed prime farmland bond release 
    area (cropland and prime farmland), and (2) submitted evidence of 
    consultation with the NRCS regarding the demonstration of productivity 
    on prime farmland, the Director finds that the representative strips 
    method for the demonstration of production on areas reclaimed for 
    production of annual crops (cropland and prime farmland) is no less 
    effective than the requirements of 30 CFR 816.116(a)(2), 817.116(a)(2), 
    and 823.15(b)(2).
        Based on the above discussion, the Director approves the proposed 
    sampling procedures allowed for demonstration of productivity of annual 
    crops on cropland and prime farmland in Chapter III, Section D of North 
    Dakota's revegetation document.
        h. Chapter III, Section D, sample adequacy requirements for 
    demonstration of woody plant density. North Dakota proposed to revise 
    Chapter III, Section D in its revegetation document to require, when 
    using the quadrat sampling method to measure success of woody plant 
    density, that randomly placed quadrats be used to obtain density counts 
    and to recommend that permanent sampling plots be established within 
    each planting. North Dakota proposed to delete the requirement that 
    sampling of total density proceed until the coefficient of variation is 
    less than or equal to 20 percent, and add the requirements that enough 
    samples must be taken to (1) reflect the population mean with 90 
    percent statistical confidence and (2) demonstrate that the number of 
    woody plants established equals or exceeds the approved standard with 
    90 percent statistical confidence.
        The Federal regulations at 30 CFR 816.116(a)(2) and 817.116(a)(2) 
    require, in part, that the sampling techniques for measuring success of 
    stocking shall use a 90-percent statistical confidence interval.
        As discussed in Finding No. 2.c above, OSM is approving North 
    Dakota's proposed requirement that enough samples must be taken to 
    demonstrate that the number of woody plants established equals or 
    exceeds the approved standard with 90 percent statistical confidence.
        The Director finds that the revisions proposed in Chapter III, 
    Section D, concerning the sampling procedure used to demonstrate the 
    success of woody plant density, are no less effective than the Federal 
    regulations at 30 CFR 816.116(a)(2) and 817.116(a)(2) and approves the 
    proposed revisions.
        i. Appendix A, reinforcement interseeding on native grassland as a 
    normal conservation practice. North Dakota proposed to revise Appendix 
    A, concerning normal conservation practices on lands reclaimed for use 
    as native grassland, to allow restricted reinforcement interseeding, 
    described below, to modify species composition or reestablish certain 
    species during establishment of the revegetated stand. North Dakota 
    referenced the NRCS July 14, 1989, Technical Note, ND-12 Rev., entitled 
    ``Guidelines for Grass/Legume Stand Evaluation,'' and used this 
    guideline to develop the requirements 
    
    [[Page 36221]]
    for an evaluation of species establishment and the need for 
    reinforcement interseeding.
        North Dakota proposed to require a record of the frequency 
    measurement of the established plants and that the frequency of species 
    seeded must indicate that at least 50 percent of the seeded species are 
    becoming established. A single reinforcement interseeding may be made 
    prior to year 4 of the bond liability period. At year 4, the permittee 
    may evaluate the establishment of species. If the permittee can 
    demonstrate that the revegetated stand has not become established, one 
    more reinforcement interseeding would be allowed in the spring of year 
    5. North Dakota proposed to require that any interseeding after year 5 
    would restart the liability period.
        The Federal regulations at 30 CFR 816.116(c)(4) and 817.116(c)(4) 
    allows the regulatory authority to select normal husbandry practices if 
    such practices are expected to continue as part of the postmining land 
    use or if discontinance of the practices after the liability period 
    expires will not reduce the probability of permanent revegetation 
    success. Such practices must be normal husbandry practices within the 
    region.
        In response to OSM's September 9, 1994, issue letter, North Dakota 
    submitted a copy of the NRCS July 14, 1989, Technical Note, ND-12 Rev. 
    This document states that, in the case of weak or spotty stands, 
    reinforcement seeding or spot seeding should be considered during 
    evaluation of stand establishment. As set forth in Chapter II, Section 
    D of North Dakota's revegetation document, the revegetation stand would 
    have to meet the revegetation success standards for production, cover, 
    diversity, seasonality, and performance during the last 2 consecutive 
    years of the liability period. Therefore, the permittee would have to 
    demonstrate prior to bond release that discontinuance of interseeding 
    would not reduce the probability of permanent revegetation success.
        Based on the NRCS document and North Dakota's proposal that only 
    one interseeding prior to year 4 of the 10 year liability period and 
    one conditional interseeding in year of the liability period would be 
    allowed, the Director finds that North Dakota's proposal for 
    reinforcement interseeding on reclaimed native grasslands is consistent 
    with the Federal regulations at 30 CFR 816.116(c)(4) and 817.116(c)(4) 
    and approves it.
        j. Appendix A, plantings of trees and shrubs on agricultural land 
    as a normal conservation practice. North Dakota proposed to revise the 
    discussion of normal conservation practices in Appendix A to include 
    the voluntary plantings of trees and shrubs on agricultural land at the 
    request of the landowner or to enhance fish and wildlife habitat as a 
    normal conservation practice.
        There is no provision in the Federal program for the planting of 
    trees and shrubs on agricultural land at the request of the landowner, 
    as proposed by North Dakota. The Federal regulations at 30 CFR 
    816.97(h) and 817.97(h) and North Dakota's rule at NDAC 69-052-13-
    08(5)(j) require that a permittee, when the postmining land use is 
    cropland, and where appropriate for crop-management practices, 
    intersperse the fields with trees, hedges, or fence rows throughout the 
    harvested area. The provision for voluntary planting of trees and 
    shrubs on agricultural land either at the landowner's request or to 
    enhance fish and wildlife habitat is not inconsistent with the Federal 
    regulations at 30 CFR 816.97(h) and 817.97(h) and North Dakota's rule 
    at NDAC 69-052-13-08(5)(j).
        The Federal regulations at 30 CFR 816.116(c)(4) and 817.116(c)(4) 
    provide for the approval of selective husbandry practices that would 
    not extend the period of responsibility for revegetation success and 
    bond liability, if such practices can be expected to continue as part 
    of the postmining land use or if discontinuance of the practices after 
    the liability period expires will not reduce the probability of 
    permanent revegetation success. The term ``normal conservation 
    practice'' used by North Dakota in its revegetation document means the 
    same thing as the term ``normal husbandry practice'' used in the 
    Federal regulations.
        The use of field windbreaks, or plantings of trees and shrubs on 
    agricultural land, is a common agricultural practice in North Dakota. 
    As discussed above, the planting of trees and shrubs to enhance fish 
    and wildlife habitat where appropriate for crop management on areas 
    with a postmining land use of cropland is recognized in the Federal 
    program as a desirable enhancement of an agricultural land use.
        For these reasons, the Director finds that North Dakota's proposed 
    allowance in Appendix A for the planting of trees and shrubs on 
    agricultural land as a normal conservation practice is consistent with 
    the Federal regulations at 30 CFR 816.97(h), 816.116(c)(4), 817.97(h), 
    and 817.116(c)(4), and approves it.
    IV. Summary and Disposition of Comments
    
        Following are summaries of all substantive written comments on the 
    proposed amendment that were received by OSM, and OSM's responses to 
    them.
    
    1. Public Comments
    
        OSM invited public comments on the proposed amendment, but none 
    were received.
    
    2. Federal Agency Comments
    
        Pursuant to 732.17(h)(11)(i), OSM solicited comments on the 
    proposed amendment from various Federal agencies with an actual or 
    potential interest in the North Dakota program.
        a. NRCS. On April 14, 1994, the U.S. NRCS responded with the 
    following comments (administrative record No. ND-U-09).
        With respect to reference areas used to demonstrate success of land 
    reclaimed for use as native grassland, the NRCS commented that
    
        [l]ong term ungrazed reference areas eventually may lose 
    integrity in representing characteristic native plant communities. 
    Such areas eventually tend to become invaded by Kentucky Blue grass, 
    excess litter accumulates, wood or other dominating overstory may 
    increase, and species diversity decreases. Grazing and/or fire 
    historically influenced the character of native prairie ecosystems.
    
        North Dakota's rules at NDAC 69-05.2-01-02 define a ``reference 
    area'' to mean, in part, a land unit maintained under appropriate 
    management. North Dakota's revegetation document at Chapter II, Section 
    D includes the requirements for measuring success of revegetation on 
    areas reclaimed for use as native grassland. North Dakota requires that 
    the range condition of the reference area be similar to that of the 
    corresponding premine range site. North Dakota also recommends that, 
    because prior to mining disturbance a rancher may have used the land 
    more intensively than if the goal had been sustained yields for several 
    years, management practices which will maintain or improve the 
    condition of the reference area be used during the liability area and 
    that management of the reference area should be equivalent to that 
    required for the approved postmining land use of the permit area. 
    Therefore, because North Dakota's rules and revegetation document 
    require proper management of the reference area used to demonstrate 
    success of revegetation on lands reclaimed for use as native grassland, 
    the Director is not requiring that North Dakota further 
    
    [[Page 36222]]
    revise the revegetation document in response to this comment.
        With respect to production on land reclaimed for use as native 
    grazingland, the NRCS commented that
    
        [NRCS] production values represent potential for given range 
    sites and may not be representative of the actual pre-mined yields. 
    Range condition would influence yields on both the reference area 
    and pre-mined area.
    
        North Dakota's revegetation document at Chapter II, Section D 
    requires an evaluation of the range condition, for all range sites and 
    the reference area, according to the methodology specified by the NRCS. 
    And as discussed above, North Dakota requires proper management of the 
    reference area for attainment of the postmining land use; in addition, 
    the reference area must be representative of the geology, soil, slope, 
    and vegetation in the permit area. While the permittee may elect to use 
    either NRCS estimated yield values or actual yield values from the 
    reference area to determine a productivity standard, North Dakota 
    requires that the permittee demonstrate restoration of the production 
    potential of the soils in the permit area. For these reasons, the 
    Director is not requiring that North Dakota further revise its 
    revegetation document in response to these comments.
        With respect to NRCS pasture and hayland yields, NRCS commented 
    that
    
        [c]urrently, pasture and hayland yields are under evaluation for 
    revision. Some yields are apparently too high. Revisions will be 
    based on available research data.
    
        North Dakota's revegetation document at Chapter II, Section E 
    requires the use of NRCS estimates yield figures for setting a 
    technical productivity standard by which the success of revegetation 
    will be measured on land reclaimed for use as pastureland. North Dakota 
    also states in its revegetation document at Chapter II, Section B, 
    concerning data sources, that when new data are published by the NRCS, 
    updated tables will be forwarded to the mining companies and OSM. The 
    permittee will therefore be using the most current NRCS estimated 
    yields to determine any technical standards used in demonstrating the 
    success of productivity on lands reclaimed for use as tame pastureland. 
    Where the permittee elects to use a reference area to determine the 
    productivity standard, the actual yield measurements will be used. For 
    these reasons, the Director is not requiring that North Dakota further 
    revise the revegetation document in response to this comment.
        On May 22, 1995, the U.S. NRCS responded that it had no comments on 
    the revised proposed amendment (administrative record No. ND-U-19).
        b. Other Federal agencies. The U.S. Mine Safety and Health 
    Administration (MSHA) responded on March 16, 1994, that the proposed 
    amendment did not conflict MSHA regulations (administrative record No. 
    ND-U-04).
        The U.S. Fish and Wildlife Service responded on March 29, 1994, and 
    June 1, 1995, that (1) the proposed amendment was logical and 
    reasonable and (2) it did not anticipate any significant impacts to 
    fish and wildlife resources as a result of the proposed amendment 
    (administrative record Nos. ND-U-07 and ND-U-21).
        The U.S. Bureau of Mines responded on April 11, 1994, that it had 
    no comments on the proposed amendment (administrative record No. ND-U-
    08).
        The U.S. Rural Economic and Community Development responded on May 
    23, 1994, that it had no comments on the proposed amendment 
    (administrative record No. ND-U-20).
        The U.S. Agricultural Research Service, Northern Great Plains 
    Research Laboratory, responded on May 30, 1994, that it had no comments 
    on the proposed amendment (administrative record No. ND-U-22).
        The U.S. Army Corps of Engineers responded on June 5, 1995, that it 
    found the proposed amendment to be satisfactory (administrative record 
    No. ND-U-24).
    
    3. Environmental Protection Agency (EPA) Concurrence and Comments
        Pursuant to 30 CFR 732.17(h)(11)(ii), OSM is required to solicit 
    the written concurrence of EPA with respect to those provisions of the 
    proposed program amendment that relate to air or water quality 
    standards promulgated under the authority of the Clean Water Act (33 
    U.S.C. 1251 et seq.) or the Clean Air Act (42 U.S.C. 7401 et seq.).
        None of the revisions that North Dakota proposed to make in its 
    amendment pertain to air or water quality standards. Therefore, OSM did 
    not request EPA's concurrence.
        Pursuant to 732.17(h)(11)(i), OSM solicited comments on the 
    proposed amendment from EPA (administrative record No. ND-U-03. EPA 
    responded on March 21, 1994, that it had no comments on the proposed 
    amendment (administrative record No. ND-U-06).
    
    4. State Historic Preservation Officer (SHPO) and the Advisory Council 
    on Historic Preservation (ACHP)
    
        Pursuant to 30 CFR 732.17(h)(4), OSM solicited comments on the 
    proposed amendment from the SHPO and ACHP (administrative record No. 
    ND-U-03). Neither SHPO nor ACHP responded to OSM's request.
    
    V. Director's Decision
    
        Based on the above findings, the Director approves, with certain 
    exceptions and additional requirements, North Dakota's proposed 
    amendment as submitted on February 17, 1994, and as revised and 
    supplemental with additional explanatory information on December 21, 
    1994, and May 11, 1995.
        With the requirement that North Dakota further revise its rules 
    and/or the revegetation document, the Director approves, as discussed 
    in Finding No. 3.a, Chapter II, Section C, the requirements to 
    demonstrate the success of productivity prior to third-stage bond 
    release on land reclaimed for use as prime farmland, and Finding No. 
    3.e, Chapter II, Section I, the requirements to demonstrate the success 
    of revegetation on areas developed for recreation, residential, or 
    industrial and commercial land uses.
        The Director approves, as discussed in: Finding No. 1, the proposed 
    revisions in the revegetation document not otherwise specifically 
    discussed, Finding Nos. 2.a. through 2.i, various revisions in the 
    revegetation document made in response to required amendments; Finding 
    No. 3.b, Chapter II, Section E, the required evaluation of reclaimed 
    vegetation for diversity, seasonality, and permanence on areas 
    developed for use as tame pastureland; Finding No. 3.c, Chapter II, 
    Section E, the use of estimated yields to develop a productivity 
    standard for soils that are not rated for use as pastureland on land 
    reclaimed for use as tame pastureland; Finding No. 3.d, Chapter II, 
    Section H, wetland classification and replacement requirements; Finding 
    No. 3.f, Chapter III, Section C, sample design and sample size 
    adequacy; Finding No. 3.g, Chapter III, Section D, the use of entire 
    field harvest, combined sampling, hand sampling, or representative 
    strips as procedures for demonstrating productivity on land reclaimed 
    for use as cropland or prime farmland; Finding No. 3.h, Appendix A, the 
    use of restricted interseeding as a normal conservation practice on 
    land reclaimed for use as native grassland; and Finding No. 3.i, 
    Appendix A, the voluntary plantings of trees and shrubs on agricultural 
    land at the request of the landowner or to enhance fish and wildlife 
    habitat as a normal conservation practice.
        The Federal regulations at 30 CFR Part 934, codifying decisions 
    concerning the North Dakota Program, are being 
    
    [[Page 36223]]
    amended to implement this decision. This final rule is being made 
    effective immediately to expedite the State program amendment process 
    and to encourage States to bring their programs into conformity with 
    the Federal standards without undue delay. Consistency of State and 
    Federal standards is required by SMCRA.
        In accordance with 30 CFR 732.17(f)(1), the Director is also taking 
    this opportunity to clarify in the required amendment section at 30 CFR 
    934.16 that, within 60 days of the publication of this final rule, 
    North Dakota must either submit a proposed written amendment, or a 
    description of an amendment to the proposed that meets the requirements 
    of SMCRA and 30 CFR Chapter VII and a timetable for enactment that is 
    consistent with North Dakota's established administrative or 
    legislative procedures.
        Section 503 of SMCRA provides that a State may not exercise 
    jurisdiction under SMCRA unless the State program is approved by the 
    Secretary. Similarly, 30 CFR 732.17(a) requires that any alteration of 
    an approved State program be submitted to OSM for review as a program 
    amendment. Thus, any changes to the State program are not enforceable 
    until approved by OSM. The Federal regulations at 30 CFR 732.17(g) 
    prohibit any unilateral changes to approved State programs. In the 
    oversight of the North Dakota program, the Director will recognize only 
    the statutes, regulations and other materials approved by OSM, together 
    with any consistent implementing policies, directives and other 
    materials, and will require the enforcement by North Dakota of only 
    such provisions.
    
    VI. Procedural Determinations
    1. Executive Order 12866
    
        This rule is exempted from review by the Office of Management and 
    Budget (OMB) under Executive Order 12866 (Regulatory Planning and 
    Review).
    
    2. Executive Order 12778
    
        The Department of the Interior has conducted the reviews required 
    by section 2 of Executive Order 12778 (Civil Justice Reform) and has 
    determined that this rule meets the applicable standards of subsections 
    (a) and (b) of that section. However, these standards are not 
    applicable to the actual language of State regulatory programs and 
    program amendments since each such program is drafted and promulgated 
    by a specific State, not by OSM. Under sections 503 and 505 of SMCRA 
    (30 U.S.C. 1253 and 12550) and the Federal regulations at 30 CFR 
    730.11, 732.15, and 732.17(h)(10), decisions on proposed State 
    regulatory programs and program amendments submitted by the States must 
    be based solely on a determination of whether the submittal is 
    consistent with SMCRA and its implementing Federal regulations and 
    whether the other requirements of 30 CFR Parts 730, 731, and 732 have 
    been met.
    
    3. National Environmental Policy Act
    
        No environmental impact statement is required for this rule since 
    section 702(d) of SMCRA (30 U.S.C. 1292(d)) provides that agency 
    decisions on proposed State regulatory program provisions do not 
    constitute major Federal actions within the meaning of section 
    102(2)(C) of the National Environmental Policy Act of 1969 (42 U.S.C. 
    4332(2)(C)).
    
    4. Paperwork Reduction Act
    
        This rule does not contain information collection requirements that 
    require approval by OMB under the Paperwork Reduction Act (44 U.S.C. 
    3507 et seq.).
    
    5. Regulatory Flexibility Act
    
        The Department of the Interior has determined that this rule will 
    not have a significant economic impact on a substantial number of small 
    entities under the Regulatory Flexibility Act (5 U.S.C. 601 et seq.). 
    The State submittal that is the subject of this rule is based upon 
    counterpart Federal regulations for which an economic analysis was 
    prepared and certification made that such regulations would not have a 
    significant economic effect upon a substantial number of small 
    entities. Accordingly, this rule will ensure that existing requirements 
    previously promulgated by OSM will be implemented by the State. In 
    making the determination as to whether this rule would have a 
    significant economic impact, the Department relied upon the data and 
    assumptions for the counterpart Federal regulations.
    
    List of Subjects in 30 CFR Part 934
    
        Intergovernmental relations, Surface mining, Underground mining.
    
        Dated: July 6, 1995.
    Richard J. Seibel,
    Regional Director, Western Regional Coordinating Center.
    
        For the reasons set out in the preamble, Title 30, Chapter VII, 
    Subchapter T of the Code of Federal Regulations is amended as set forth 
    below:
    
    PART 934--North Dakota
    
        1. The authority citation for Part 934 continues to read as 
    follows:
    
        Authority: 30 U.S.C. 1201 et seq.
    
        2. Section 934.15 is amended by adding paragraph (u) to read as 
    follows:
    
    
    Sec. 934.15  Approval of amendments to the North Dakota regulatory 
    program.
    
    * * * * *
        (u) With the exceptions of Chapter II, Section C, to the extent 
    that it allows the demonstration of productivity with less than 3 years 
    of crop data prior to third-stage bond release on lands reclaimed for 
    use as prime farmland; and Chapter II, Section I, to the extent that it 
    does not include complete requirements for measuring the success of 
    revegetation on land reclaimed for use as recreation; revisions to 
    North Dakota's policy document entitled ``Standards for Evaluation of 
    Revegetation Success and Recommended Procedures for Pre- and Postmining 
    Vegetation Assessments,'' as submitted to OSM on February 17, 1994, and 
    as revised and supplemented with explanatory information on December 
    21, 1994, and May 11, 1995, are approved effective July 14, 1995.
        3. Section 934.16 is amended by revising the introductory 
    paragraph, removing and reserving paragraphs (b) through (i), (w), and 
    (x), and adding paragraphs (aa) and (bb) to read as follows:
    
    
    Sec. 934.16  Required program amendments.
    
        Pursuant to 30 CFR 732.17(f)(1), North Dakota is required to submit 
    to OSM by the specified date the following written, proposed program 
    amendment, or a description of an amendment to be proposed that meets 
    the requirements of SMCRA and 30 CFR Chapter VII and a timetable for 
    enactment that is consistent with North Dakota's established 
    administrative or legislative procedures.
    * * * * *
        (aa) By September 12, 1995, North Dakota shall revise Chapter II, 
    Section C in its revegatation document and its rules at NDAC 69-05.2-
    22-07(3)(c) and 69-05.2-26-05(3)(c) to require that, prior to third-
    stage bond release on land reclaimed for use as prime farmland, the 
    permittee demonstrate restoration of productivity using 3 crop years.
        (bb) By September 12, 1995, North Dakota shall revise Chapter II, 
    Section I it its revegetation document and its rule at NDAC 69-05.2-22-
    07(4)(j) to require tree and shrub stocking standards that meet all 
    requirements in 30 CFR 816.116(b)(3), including approval by the 
    appropriate State agencies, on land reclaimed for use as recreation. 
    North 
    
    [[Page 36224]]
    Dakota shall also provide documentation of consultation with and 
    approval from the appropriate State agencies for the ground cover 
    standard in chapter II, Section I on land reclaimed for use as 
    recreation.
    
    [FR Doc. 95-17166 Filed 7-13-95; 8:45 am]
    BILLING CODE 4310-05-M
    
    

Document Information

Effective Date:
7/14/1995
Published:
07/14/1995
Department:
Surface Mining Reclamation and Enforcement Office
Entry Type:
Rule
Action:
Final rule; approval of amendment.
Document Number:
95-17166
Dates:
July 14, 1995.
Pages:
36213-36224 (12 pages)
PDF File:
95-17166.pdf
CFR: (2)
30 CFR 934.15
30 CFR 934.16