96-24398. Performance-Oriented Packaging Standards; Final Transitional Provisions  

  • [Federal Register Volume 61, Number 188 (Thursday, September 26, 1996)]
    [Rules and Regulations]
    [Pages 50616-50629]
    From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
    [FR Doc No: 96-24398]
    
    
    
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    Part IV
    
    
    
    
    
    Department of Transportation
    
    
    
    
    
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    Research and Special Programs Administration
    
    
    
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    49 CFR Part 171, et al.
    
    
    
    Performance-Oriented Packaging Standards; Final Transitional 
    Provisions; Final Rule
    
    Federal Register / Vol. 61, No. 188 / Thursday, September 26, 1996 / 
    Rules and Regulations
    
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    DEPARTMENT OF TRANSPORTATION
    
    Research and Special Programs Administration
    
    49 CFR Parts 171, 172, 173, 178
    
    [Docket No. HM-181H; Amdt Nos. 171-147, 172-150, 173-255, 178-117]
    RIN 2137-AC66
    
    
    Performance-Oriented Packaging Standards; Final Transitional 
    Provisions
    
    AGENCY: Research and Special Programs Administration (RSPA), DOT.
    
    ACTION: Final rule.
    
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    SUMMARY: RSPA is incorporating into the Hazardous Materials Regulations 
    (HMR) a number of changes, based on agency initiative, petitions for 
    rulemaking and comments received at public meetings, to the 
    classification of certain hazardous materials which are poisonous by 
    inhalation and to provisions for the manufacture, use and reuse of 
    hazardous materials packagings. These regulatory changes are intended 
    to improve safety, reduce compliance costs for offerors and 
    transporters of hazardous materials, make the regulations easier to 
    use, and correct errors.
    
    DATES: Effective date. The effective date of these amendments is 
    January 1, 1997.
        Compliance date. Because the amendments adopted herein generally 
    clarify and relax certain provisions scheduled to go into effect on 
    October 1, 1996, RSPA is authorizing immediate voluntary compliance. 
    However, persons voluntarily complying with these regulations should be 
    aware that petitions for reconsideration may be received and, as a 
    result of RSPA's evaluation of those petitions, the amendments adopted 
    in this final rule could be subject to further revision.
        Incorporation by reference. The incorporation by reference of 
    certain publications listed in these amendments has been approved by 
    the Director of the Federal Register as of January 1, 1997.
    
    FOR FURTHER INFORMATION CONTACT: Beth Romo, telephone (202) 366-8553, 
    Office of Hazardous Materials Standards, or Bill Gramer, telephone 
    (202) 366-4545, Office of Hazardous Materials Technology, Research and 
    Special Programs Administration, Washington DC, 20590-0001.
    
    SUPPLEMENTARY INFORMATION:
    
    I. Background
    
        On December 21, 1990, RSPA published a final rule [Docket HM-181; 
    55 FR 52402], which comprehensively revised the HMR with respect to 
    hazard communication, classification, and packaging requirements based 
    on the United Nations (UN) Recommendations on the Transport of 
    Dangerous Goods (UN Recommendations). A document responding to 
    petitions for reconsideration and containing editorial and substantive 
    revisions to the final rule was published on December 20, 1991 [56 FR 
    66124]. On October 1, 1992, under Dockets HM-181 and HM-189, RSPA 
    issued editorial and technical corrections to the regulations published 
    in 1991. On September 24, 1993, RSPA issued a final rule under Docket 
    HM-181F [58 FR 50224] which made changes to the HMR based on agency 
    initiative and petitions for rulemaking received since the December 20, 
    1991 response to petitions for reconsideration. That final rule 
    primarily revised requirements with a mandatory compliance date of 
    October 1, 1993, as provided in the transitional provisions in 
    Sec. 171.14(b)(4).
        RSPA published a notice of proposed rulemaking (NPRM) on June 26, 
    1996, under Docket HM-181H [61 FR 33216] to address most remaining 
    issues associated with the implementation of Docket HM-181 provisions 
    and certain other issues arising from a final rule issued December 29, 
    1994, under Docket HM-215A [59 FR 67390]. These issues were raised 
    through petitions for rulemaking and agency initiative.
        RSPA proposed changes to numerous requirements with a compliance 
    date of October 1, 1996. Although these changes focus primarily on 
    provisions concerning hazard classification and the maintenance and use 
    of performance packaging, RSPA also proposed changes to intermediate 
    bulk container (IBC) requirements, portable tank requirements, and 
    regulated medical waste provisions adopted under Dockets HM-181E and 
    HM-181G, respectively. Several current exemptions were proposed for 
    conversion into regulations of general applicability, and an approval 
    concerning design qualification and periodic testing was proposed for 
    incorporation into the HMR.
    
    II. Summary of Comments to the NPRM
    
        RSPA received nearly 40 comments in response to the proposed rule. 
    The comments were submitted by chemical manufacturing companies, trade 
    associations, packaging manufacturers, drum reconditioners, and various 
    organizations representing the medical waste industry. Commenters were 
    uniformly supportive of RSPA's efforts to address remaining issues 
    associated with Docket HM-181 and other issues arising from the Docket 
    HM-215A final rule. Certain issues proposed in the notice received 
    little or no comment. Other issues, such as drum reuse provisions, 
    display packs for ORM-D materials, an exception proposed for certain 
    Division 6.2 waste materials, and winter filling limits for tank cars, 
    were the focus of many of the comments. Several commenters requested 
    amendments to the HMR other than those proposed as part of this 
    initiative. Most of these suggestions are beyond the scope of the 
    proposed changes in this rule and are under review.
        The Hazardous Materials Advisory Council (HMAC) expressed concern 
    that the proposed rule frequently cited a petition for rulemaking [P-
    1169] without proposing adoption or discussing other provisions 
    identified by HMAC in their April 13, 1993 petition. HMAC also claimed 
    that another petition [P-1232], addressing outage requirements for 
    materials poisonous by inhalation, merited consideration because it 
    appeared to be within the scope of the Docket HM-181H rulemaking.
        Petition P-1169 contained 25 separate issues that HMAC submitted to 
    RSPA for consideration to amend the HMR. Of the 25 issues identified in 
    that petition, RSPA has adopted a majority, including seven issues in 
    this rulemaking. The few remaining issues will appear in upcoming 
    proposed rulemaking actions (such as HM-215B) or are presently under 
    review.
        Under Docket HM-181, RSPA adopted a five percent outage requirement 
    for poisonous by inhalation hazard materials in bulk packagings. 
    Chemical manufacturers and associations, such as HMAC, opposed this 
    requirement, claiming that any safety benefit is offset by additional 
    shipments and resultant costs. RSPA believes a change in outage 
    requirements is beyond the scope of this rulemaking.
    
    III. Summary of Regulatory Changes by Section
    
        Listed below is a section-by-section summary of changes and, as 
    applicable, a discussion of comments received.
    
    Part 171
    
        Section 171.7. The table of material incorporated by reference is 
    amended by adding a new entry referencing a publication issued by the 
    Department of Health and Human Services for defining biosafety levels 
    and adding two new ASTM steel standards referenced in Sec. 178.601.
        Section 171.14. All transitional provisions reflecting a compliance 
    date of October 1, 1996, or earlier are
    
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    removed. One commenter representing the agricultural chemical industry 
    asked RSPA to establish a five-year delayed compliance date for 
    products in DOT specification and non-specification packagings filled 
    before October 1, 1996. The commenter described a lengthy process for 
    agricultural chemicals moving through a distribution chain to end users 
    and then frequent product returns several years after the original 
    sale. According to the commenter, an additional five-year compliance 
    period would provide sufficient time for the industry to eliminate any 
    non- specification and DOT-specification packagings which would not 
    otherwise be authorized after October 1, 1996.
        RSPA provided a five-year transition period from October 1, 1991 to 
    October 1, 1996 for users of these packagings to deplete inventory and 
    phase in UN performance packagings. RSPA believes this five-year 
    transition period has afforded industry sufficient time to prepare for 
    the October 1, 1996 compliance date. However, RSPA recognizes that an 
    extensive distribution process that includes procedures for return of 
    products to distributors warrants limited relief to allow the 
    transportation of materials in previously authorized and filled 
    packages to end users or for their return, repackaging, or disposal. 
    From an overall transportation safety perspective, it is RSPA's view 
    that it is safer to allow one final shipment of these previously 
    authorized and filled packagings than to compel the transfer of 
    materials, such as pesticides, into packagings required by the HMR as 
    of October 1, 1996.
        Therefore, RSPA is adding a provision to authorize non-bulk 
    packagings, other than cylinders, which were filled prior to October 1, 
    1996 in conformance with regulations in effect on September 30, 1996, 
    to be offered for transportation and transported domestically until 
    October 1, 1999. RSPA believes a three-year delay in compliance affords 
    sufficient time for these packagings to be eliminated from a 
    distribution system. It is emphasized that this provision does not 
    authorize the filling of packagings, only offering and transportation 
    of packagings filled prior to October 1, 1996.
        In addition, three other transition provisions are retained for 
    packages filled prior to October 1, 1991, new placard specifications, 
    and authorization for use of fiber drums.
    
    Part 172
    
        Section 172.101. The text preceding the Sec. 172.101 Hazardous 
    Materials Table (HMT) sets forth procedures for using the HMT. To 
    clarify procedures contained in paragraph (c)(12)(iii) for selecting a 
    proper shipping name for a material that meets the definition of more 
    than one hazard class, RSPA proposed to replace the phrase ``identified 
    * * * by a specific description'' with ``identified * * * specifically 
    by name'' and include an example. All three commenters addressing this 
    issue supported this proposed change, stating that it will clarify the 
    procedure for selecting a proper shipping name.
        In addition, RSPA is adding as proposed a new paragraph 
    (c)(10)(iii) which clarifies the process for selecting a proper 
    shipping name for a mixture of two or more hazardous materials in the 
    same hazard class. Currently, paragraph (c)(10)(i) contains a provision 
    for selecting a proper shipping name for a mixture of a hazardous 
    material and non-hazardous material, and paragraph (c)(12)(ii) 
    prescribes the proper shipping name selection process for a material 
    meeting more than one hazard class.
        Section 172.101; the Hazardous Materials Table (HMT). A new entry 
    to provide for the domestic transportation of black powder for small 
    arms reclassed as a Division 4.1 is added as proposed. This revision is 
    based on comparable provisions for smokeless powder, small arms 
    cartridges and power device cartridges. In conjunction with this 
    change, a new Special Provision 70 and new non-bulk packaging section 
    Sec. 173.170 is added.
        In the HMT, the entries ``Chlorosilanes, n.o.s.'', with 
    identification numbers UN 2986, UN 2987, and UN 2988, are not 
    authorized to be shipped in DOT Specification Intermodal (IM) portable 
    tanks. Based on a petition for rulemaking requesting that RSPA 
    authorize IM portable tanks for all chlorosilanes and that the use of 
    IM portable tanks for these materials will not compromise safety and 
    would be consistent with other specific authorizations, RSPA is 
    adopting the proposal to authorize certain IM portable tanks for all 
    chlorosilanes. RSPA is adding special provisions in Column (7) for 
    ``Chlorosilanes, n.o.s.'', with identification numbers UN 2986, UN 
    2987, and UN 2988, to permit the transport of these materials in IM 
    portable tanks.
        Bulk packaging references for three Type F organic peroxides (UN 
    3110, UN 3119, and UN 3120) are revised by changing ``None'' to ``225'' 
    in Column (8C) to indicate that these materials are authorized in bulk 
    packagings. In addition, for the entries ``Organic Peroxide, type F, 
    liquid (or solid), temperature controlled'' (UN 3119 and UN 3120), in 
    Column (8A), the packaging exception reference ``152'' is removed for 
    each entry to indicate that these temperature controlled organic 
    peroxides are not eligible for packaging exceptions. One commenter 
    noted that even though Sec. 173.225 is authorized in Column (8C) of the 
    Hazardous Materials Table, this authorization alone will not allow bulk 
    packaging for organic peroxide, type F, solid. A note in Column 8 of 
    the Organic Peroxide Table, in conjunction with the technical name of 
    the material, indicates whether the material is authorized to be 
    packaged in a bulk packaging.
        More than 30 entries classed as Division 4.3 (dangerous when wet) 
    solids in Packing Groups II and III are amended by revising Column (8A) 
    to authorize Sec. 173.151 as a packaging exception section. One 
    commenter asked RSPA to authorize a packaging exception section for 
    three additional Division 4.3 materials that exhibit similar 
    characteristics and do not pose an unreasonable risk in transportation. 
    After reviewing these materials, RSPA agrees and is adding them to the 
    list of entries that are authorized a packaging exception in 
    Sec. 173.151.
        Revisions to Classification and Hazard Zone Identification for 
    Certain Materials Poisonous by Inhalation. Based on acute inhalation 
    toxicity data and related information obtained by RSPA, the HMT is 
    amended to change the hazard zone for some materials poisonous by 
    inhalation, and to add other materials to the list of materials 
    poisonous by inhalation. For certain materials this revision imposes 
    more stringent hazard communication and packaging requirements. The 
    Docket HM-181H NPRM contains a more complete description of the data on 
    which these revisions are based. The materials are listed as follows:
        a. Hydrogen cyanide, solution in alcohol (with not more than 45 
    percent hydrogen cyanide) (UN3294). Based on the toxicity and 
    volatility of hydrogen cyanide, the packing group assigned and the 
    dilution factor for this solution of hydrogen cyanide, RSPA is 
    identifying hydrogen cyanide, solution in alcohol with not more than 45 
    percent hydrogen cyanide as a Hazard Zone B inhalation hazard. A new 
    special provision ``25'' is assigned to this entry to authorize a one-
    year delay for compliance with new packaging requirements.
        b. Metal carbonyls, n.o.s. (UN3281). The acute toxicity of metal 
    carbonyls may differ from one compound to another. Those toxic by 
    inhalation may fall into Hazard Zone A or Hazard Zone B. Others may not 
    be toxic by inhalation, but may exhibit oral and/or dermal toxicity, 
    which places them in
    
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    Division 6.1, Packing Group I. Therefore, RSPA is adding special 
    provision ``5'' to Column 7 of the entry for metal carbonyls, n.o.s. at 
    the Packing Group I level.
        c. Methanesulfonyl chloride (UN3246). As proposed, RSPA is 
    identifying methanesulfonyl chloride as a Hazard Zone B inhalation 
    hazard. A new special provision ``25'' is assigned to this entry to 
    authorize a one-year delay for compliance with new packaging 
    requirements.
        d. Methyl vinyl ketone (UN1251). As proposed, RSPA is identifying 
    methyl vinyl ketone as a Hazard Zone A inhalation hazard. Also, to be 
    consistent with the UN Recommendations (Eighth revised edition), RSPA 
    is adding the plus (+) symbol to Column 1 of the entry for methyl vinyl 
    ketone. A new special provision ``25'' is assigned to this entry to 
    authorize a one-year delay for compliance with new packaging 
    requirements.
        e. Nitriles, toxic, flammable, n.o.s. (UN3275). This generic entry 
    covers Division 6.1, Packing Groups I and II toxic, flammable nitriles 
    that are not specifically listed by name but exhibit acute oral, dermal 
    and/or inhalation toxicity. The acute toxicity of these nitriles may 
    differ from one compound to another. Those toxic by inhalation may fall 
    into Hazard Zone A or Hazard Zone B. Other nitriles may not be toxic by 
    inhalation, but may exhibit oral and/or dermal toxicity which places 
    them in Division 6.1, Packing Group I. Therefore, RSPA is adding 
    special provision ``5'' to Column 7 of the entry for nitriles, toxic, 
    flammable, n.o.s. at the Packing Group I level.
        f. Nitriles, toxic, n.o.s. (UN3276). This generic entry covers 
    Division 6.1, Packing Groups I, II and III toxic nitriles that are not 
    specifically listed by name but exhibit acute oral, dermal and/or 
    inhalation toxicity. The acute toxicity of these nitriles may differ 
    from one compound to another. Those toxic by inhalation may fall into 
    Hazard Zone A or Hazard Zone B. Other nitriles may not be toxic by 
    inhalation, but may exhibit oral and/or dermal toxicity which places 
    them in Division 6.1, Packing Group I. Therefore, RSPA is adding 
    special provision ``5'' to Column 7 of the entry for nitriles, toxic, 
    n.o.s. at the Packing Group I level.
        g. Organoarsenic compound, n.o.s. (UN3280). This generic entry 
    covers Division 6.1, Packing Groups I, II and III toxic organoarsenic 
    compounds that are not specifically listed by name but exhibit acute 
    oral, dermal and/or inhalation toxicity. The acute toxicity of these 
    organoarsenic compounds may differ from one compound to another. Those 
    toxic by inhalation may fall into Hazard Zone A or Hazard Zone B. 
    Others may not be toxic by inhalation, but may exhibit oral and/or 
    dermal toxicity which places them in Division 6.1, Packing Group I. 
    Therefore, RSPA is adding special provision ``5'' to Column 7 of the 
    entry for organoarsenic compound, n.o.s. at the Packing Group I level.
        h. Organophosphorus compound, toxic, flammable, n.o.s. (UN3279). 
    This generic entry covers Division 6.1, Packing Groups I and II toxic, 
    flammable organophosphorus compounds that are not specifically listed 
    by name but may exhibit acute oral, dermal and/or inhalation toxicity. 
    The acute toxicity of these organophosphorus compounds may differ from 
    one compound to another. Those toxic by inhalation may fall into Hazard 
    Zone A or Hazard Zone B. Others may not be toxic by inhalation, but may 
    exhibit oral and/or dermal toxicity which places them in Division 6.1, 
    Packing Group I. Therefore, RSPA is adding special provision ``5'' to 
    Column 7 of the entry for organophosphorus compound, toxic, flammable, 
    n.o.s. at the Packing Group I level.
        i. Organophosphorus compound, toxic, n.o.s. (UN3278). This generic 
    entry covers Division 6.1, Packing Groups I, II and III toxic 
    organophosphorus compounds that are not listed by name but exhibit 
    acute oral, dermal and/or inhalation toxicity. The acute toxicity of 
    these organophosphorus compounds may differ from one compound to 
    another. Those toxic by inhalation may fall into Hazard Zone A or 
    Hazard Zone B. Others may not be toxic by inhalation, but may exhibit 
    oral and/or dermal toxicity which places them in Packing Group I. 
    Therefore, RSPA is adding special provision ``5'' to Column 7 of this 
    entry for organophosphorus compound, toxic, n.o.s. at the Packing Group 
    I level.
        j. Phosphorus pentafluoride (UN2198). As proposed, RSPA is 
    identifying phosphorus pentafluoride as a Hazard Zone B inhalation 
    hazard.
        k. Tungsten hexafluoride (UN2196). As proposed, RSPA is identifying 
    tungsten hexafluoride as a Hazard Zone B inhalation hazard.
        Section 172.102. As noted in the discussion on revisions for 
    materials poisonous by inhalation, RSPA is authorizing a one-year delay 
    for compliance with new packaging requirements by assigning a new 
    special provision ``25'' to three commodities.
        Special Provision B59, which authorizes AAR 207A tank cars for 
    phosphorus pentasulfide, is revised as proposed to reference the use of 
    water-tight, sift-proof, closed-top, metal-covered hopper cars.
        A new special provision (N42) is added as proposed to authorize a 
    UN 1A1 steel drum for stabilized benzyl chloride. One comment was 
    received in response to this proposal and strongly supported the 
    addition of N42, which allows use of phenolic-lined steel drums with a 
    minimum thickness of 1.3 mm (0.050 inch) which have been tested and 
    certified to a Packing Group I level at a specific gravity of 1.8. The 
    commenter cited a history of shipping benzyl chloride in phenolic-lined 
    17C and UN 1A1 steel drums since 1981 without incident and without 
    failure of the phenolic lining.
        Section 172.302. In the general marking requirements for bulk 
    packagings, markings on portable tanks with capacities of less than 
    3,785 L (1,000 gallons) must be at least 6.0 mm (0.24 inch) wide and at 
    least 25 mm (one inch) high. RSPA proposed a revision of paragraph 
    (b)(2) to decrease to 4 mm (0.16 inch) the minimum width of markings 
    required on portable tanks having a capacity less than 3,785 L (1,000 
    gallons). RSPA also proposed reducing both the minimum height and width 
    of markings required on IBCs to 25 mm (one inch). Commenters were 
    uniformly supportive of both proposals, and they are adopted as 
    proposed. RSPA is not adopting one commenter's recommendation to amend 
    Appendix B to Subpart B of Part 107 to allow a marking height of one 
    inch for certain small portable tanks authorized under an exemption.
        Section 172.504. RSPA is removing the second sentence of paragraph 
    (f)(8) which allows a CLASS 9 placard to be substituted for a 
    COMBUSTIBLE LIQUID placard for material meeting both Combustible liquid 
    and Class 9 hazard classes. Several commenters agreed that this 
    provision created potential confusion and misunderstanding between 
    documentation and marking requirements describing a Combustible liquid 
    and the application of CLASS 9 placards.
    
    Part 173
    
        Section 173.24a. RSPA proposed to amend paragraph (a)(3) to clarify 
    that cushioning material used to protect inner packagings must not be 
    adversely affected (e.g., disintegrate) if there is leakage of a 
    hazardous material from the inner packagings. A degradation of 
    cushioning materials could significantly reduce the effectiveness of a 
    packaging to a point that it would not conform with its marked 
    performance standard
    
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    or meet general packaging requirements. This clarification is 
    consistent with international air transport provisions contained in the 
    International Civil Aviation Organization's (ICAO) Technical 
    Instructions. Commenters supported this proposed revision; however, the 
    Fibre Box Association expressed concern that the proposal might be 
    interpreted to mean corrugated cushioning and corrugated packaging of 
    liquids will not be allowed. The Fibre Box Association stated that the 
    phrase ``having protective properties [significantly] impaired in event 
    of leakage'' is too vague.
        The proposed change was not intended to preclude the use of 
    fiberboard cushioning or packaging for liquids. Although there is no 
    established criteria for evaluating degradation of cushioning material, 
    RSPA agrees that the phrase ``significantly impaired'' should be 
    revised. RSPA believes ``significantly weakened'' more accurately 
    conveys the intent of this provision and is revising this phrase 
    accordingly.
        Currently, paragraphs (b)(1) and (b)(2) provide filling limits for 
    single and composite packagings, but no such limits are provided for 
    combination packagings. As proposed, RSPA is revising paragraph (b)(2) 
    of this section to prescribe filling limits for all non-bulk 
    packagings, including combination packagings. This provision prohibits 
    combination packagings from being filled with a hazardous material to a 
    gross mass greater than the maximum gross mass marked on the packaging.
        Section 173.28. RSPA proposed adding a formula in paragraph (b)(4) 
    for calculating an equivalent minimum thickness for stainless steel 
    drums. This formula is consistent with the formula contained in 
    Sec. 178.705 for calculating minimum wall thicknesses for metal IBCs. 
    The Association of Container Reconditioners (ACR) opposed this proposed 
    change and stated that this issue is too complex for adoption at this 
    time. ACR believes that by reducing the minimum thickness of stainless 
    steel to the equivalent strength of carbon steel, the rationale for 
    waiving leakproofness testing for stronger steel is eliminated. ACR 
    requested that, if this proposal is adopted, a drum manufacturer's use 
    of this equivalence formula be communicated through a particular unique 
    mark, thus advising persons responsible for reuse or reconditioning of 
    this equivalence formula being used.
        RSPA is confident that the equivalence formula adopted in this 
    final rule provides an equivalent level of safety and drum integrity. 
    The language in the paragraph (b)(7) leakproofness testing waiver for 
    stainless steel drums requires a thickness of one and one-half times 
    the thickness prescribed for reuse, thus precluding use of any thinner 
    drums.
        An adjustment to Footnote 1, which specifies a minimum thickness of 
    0.82 mm body and 1.11 mm head and corresponds with ISO 3574, is adopted 
    as proposed. Commenters supporting this proposed change included ACR, 
    several chemical manufacturing companies, the Association of Waste 
    Hazardous Materials Transporters, and a drum manufacturer. Two 
    commenters, a different drum manufacturer and the Steel Shipping 
    Container Institute (SSCI), opposed this proposal, stating that this 
    request from ACR was driven by economic considerations, not safety. 
    SSCI claimed that technology for determining minimum thicknesses is 
    readily available. The drum manufacturer opposing this change stated 
    that if the footnote adjustment was adopted as proposed, RSPA should 
    provide a transition period for drum manufacturers to deplete their 
    inventory of material rendered obsolete by this change.
        RSPA is making this adjustment to Footnote 1 to standardize minimum 
    thickness requirements with breakpoints commonly recognized by 
    international standards, not to provide any economic benefit to 
    industry. RSPA also is revising Footnote 1 to authorize metal drums or 
    jerricans constructed with a minimum thickness of 0.82 mm body and 1.09 
    mm heads until December 31, 1996. After that date, drums must be 
    constructed with heads meeting a minimum thickness of 1.11 mm. This 
    delay will provide drum manufacturers additional time to deplete 
    existing inventory and build an inventory of new material.
        Paragraph (b)(7)(iv)(C) is revised as proposed to clarify that 
    there are established conditions which must be met before an approval 
    is granted by the Associate Administrator for Hazardous Materials 
    Safety to allow relief from leakproofness testing for a packaging 
    constructed of a material or thickness not otherwise authorized in the 
    exception.
        Paragraph (c)(2) prescribes reconditioning requirements for non-
    bulk packagings other than metal drums. In the NPRM, RSPA proposed a 
    revision to this paragraph to clarify that repairing or replacing a 
    bung or removable gasket in a plastic closed head (UN 1H1) drum is not 
    considered reconditioning. Both SSCI and ACR opposed this proposed 
    change, stating that replacing gaskets or closures on a plastic drum is 
    plastic drum reconditioning. SSCI claimed that a change in the material 
    of a drum is reconditioning or remanufacturing, and that changing 
    location, type or size of gasket material or properties affecting the 
    performance of the gasket is considered design type changes requiring 
    complete design qualification testing. The SSCI also warned that this 
    proposal downplays the significance of gaskets in minimizing leaks and 
    will shift drum purchases from steel to plastic drums to save costs in 
    reconditioning and leaktesting. In RSPA's view, simply ``replacing'' a 
    bung or gasket in a plastic closed head drum is not reconditioning. In 
    this final rule, RSPA is clarifying in paragraph (c)(2) that repair or 
    replacement of a bung or a removable gasket in a plastic closed head 
    (UN 1H1) drum with a bung or gasket that is of the same design and 
    material as the original bung or gasket, and provides equivalent 
    performance, is not considered reconditioning and does not subject the 
    drum to reconditioning marking requirements or to leakproofness testing 
    requirements if it is otherwise excepted from leakproofness testing.
        Section 173.32. As proposed, RSPA is reinstating pressure testing 
    requirements for DOT 57 portable tanks in paragraph (e)(2)(i). RSPA 
    also is amending paragraph (d) to allow plastic discharge valves for 
    certain stainless steel DOT 57 tanks constructed before October 1, 
    1996. Allowing a plastic discharge valve on these tanks eliminates the 
    need for an existing exemption, DOT-E-10916, and permits continued use 
    of thousands of portable tanks with a proven safety record. Two 
    comments were received in response to the proposal, both supporting 
    revisions to this section.
        RSPA is adding a new paragraph (t) which allows the remarking of 
    certain portable tanks currently authorized under DOT exemptions as DOT 
    51 portable tanks. These portable tanks were in full conformance with 
    the requirements for DOT 51 portable tanks, including the ASME Code 
    ``U'' stamp, except for the location of fill and discharge outlets.
        The changes adopted in this final rule relating to the location of 
    outlets on DOT 51 portable tanks will allow for the elimination of 
    numerous exemptions based on the design and excellent safety record of 
    these portable tanks. RSPA believes that as a minimum, the following 
    exemptions will be affected:
    
    DOT-E 6518
    DOT-E 8196
    DOT-E 9401
    DOT-E 9402
    
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    DOT-E 9632
    DOT-E 9718
    DOT-E 10032
    DOT-E 10171
    DOT-E 10193
    DOT-E 10291
    DOT-E 10567
    DOT-E 11239
    DOT-E 11275
    DOT-E 11313
    DOT-E 11331
    DOT-E 11539
    DOT-E 11589
    DOT-E 11604
    DOT-E 11658
    DOT-E 11661
    
        Persons holding other exemptions which they believe are impacted by 
    changes adopted by this final rule should contact RSPA.
        Section 173.115. Paragraph (b)(1) is revised as proposed to reflect 
    the correct conversion of 280 kPa to read ``280 kPa (40.6 psia)'' for 
    informational purposes.
        Section 173.120 and Appendix H to Part 173. Based on requests from 
    industry and comments supporting this proposed revision, RSPA is adding 
    a new paragraph (b)(3) to specify a procedure for testing combustible 
    liquids with a flash point above 60.5 deg. C (141 deg. F) and below 
    93 deg.C (200 deg. F) for the ability to sustain combustion. Appendix H 
    to Part 173 is revised to provide additional test temperatures in 
    paragraph 5.(h) for combustible liquids that closely parallel the 
    approach for flammable liquids.
        Sections 173.121, 173.125, and 173.127. As proposed, RSPA is 
    adopting a clarification of the methods for determining packing groups 
    described in Secs. 173.121(a), 173.125(a), and 173.127(b) for Class 3, 
    Class 4, and Class 5 materials, respectively.
        Section 173.133. RSPA is revising as proposed the wording ``more 
    than one packing group and hazard zone'' in paragraph (b)(1) to read 
    ``more than one packing group or hazard zone''. One commenter expressed 
    support for the proposed change, stating that it will clarify the 
    determination of applicable packing groups.
        Section 173.134. Paragraph (a)(4) limits the definition of 
    regulated medical waste to exclude discarded cultures and stocks of 
    infectious substances. In this final rule, paragraph (b) is revised as 
    proposed by adding a new paragraph (b)(4) authorizing discarded 
    cultures and stocks in Biosafety Levels 1, 2 and 3, as defined in HHS 
    Publication No. (CDC) 93-8395, Biosafety in Microbiological and 
    Biomedical Laboratories, 3rd Edition, May 1993, Section II to be 
    described and packaged as regulated medical waste rather than 
    infectious substances. Packagings must conform to Packing Group II 
    performance requirements. Transport of these materials is limited to 
    private or contract motor freight carriers in dedicated service to the 
    transportation of medical waste. Commenters uniformly supported this 
    proposed change. One commenter referenced a recent Center for Disease 
    Control proposed list of infectious substances capable of causing 
    substantial harm to human health. This commenter believed all discarded 
    cultures and stocks of infectious substances not on this proposed list 
    should be eligible for regulation as regulated medical waste. Another 
    commenter believed RSPA should provide even more relief for these 
    materials by allowing them to be packaged in OSHA-authorized containers 
    conforming to DOT's general packaging standards, and also should allow 
    private carriers transporting these types of cultures and stocks to 
    backhaul non-food products if trailers are properly disinfected. It is 
    RSPA's view that these suggested changes are beyond the scope of this 
    rulemaking.
        Section 173.151. A new paragraph (d) is added as proposed to 
    incorporate limited quantity provisions for Division 4.3 (dangerous 
    when wet) solid materials in Packing Groups II and III. This amendment 
    aligns the HMR with limited quantity exceptions contained in the UN 
    Recommendations.
        Section 173.156. Paragraph (b)(2) is revised as proposed to remove 
    the 30 kg (66 pounds) weight restriction for ORM-D materials packaged 
    in ``display packs'' which are offered for transportation, or 
    transported, by highway or rail between a manufacturer, a distribution 
    center, and a retail outlet. These display packs are inner receptacles 
    of ORM-D materials which are secured in corrugated fiberboard trays and 
    then stacked and placed within a strong outer container. Each outer 
    container is strapped to a wooden pallet with steel or polyester 
    strapping to form an integral part of the packaging. All commenters 
    addressing this issue supported the proposal; however, several 
    commenters requested that the net weight of each display pack be raised 
    from 250 kg (550 pounds) to 525 kg (1155 pounds) to reflect the weight 
    limit authorized in an exemption recently granted for this type of 
    packaging. RSPA believes that display packs should be limited to 250 kg 
    (550 pounds) net weight until satisfactory experience is gained under 
    the exemption at the higher weight.
        RSPA proposed an exception for transportation of ORM-D materials to 
    disposal facilities in paragraph (b)(1) to allow discarded consumer 
    commodities to be transported from manufacturing, distribution or 
    retail facilities to a disposal facility when packaged in large boxes 
    or overpacks exceeding 30 kg (66 pounds). RSPA received comments 
    supporting this proposal from The Conference on the Safe Transportation 
    of Hazardous Articles (petitioner for this change) and the National 
    Wholesale Druggists' Association. The Association of Waste Hazardous 
    Materials Transporters opposed the proposal, stating it has the 
    potential for abuse. This commenter believed the proposal was not in 
    the public interest and will create confusion about the regulatory 
    status of discarded material, which may be subject to regulation as 
    either a solid waste or hazardous waste.
        RSPA does not agree. However, based on further review of this 
    proposal, RSPA is revising the proposed provision to require that the 
    transportation of discarded consumer commodities to a disposal facility 
    must be from a single point of origin. RSPA believes that limiting the 
    consolidation of discarded consumer commodities in one shipping unit 
    from one offeror establishes an appropriate condition for such 
    transportation, taking into account other requirements such as 
    Secs. 173.24 and 173.24a.
        Section 173.158. Paragraph (d) is revised as proposed to authorize 
    additional packagings for nitric acid in concentrations of 90 percent 
    or greater when offered for transportation or transported by rail, 
    highway or water. A combination packaging consisting of a 1A2, 1B2, 1D, 
    1G, 1H2, 3H2 or 4G outer packaging with inner glass packagings of 2.5 L 
    (0.66 gallons) or less capacity cushioned with a non-reactive, 
    absorbent material and packed within a leak-tight packaging of metal or 
    plastic is authorized.
        In addition, RSPA is revising paragraph (f)(1) as proposed to 
    authorize 6HH1 and 6HA1 composite packagings with PFA Teflon inner 
    receptacles for nitric acid concentrations of 70 percent or less. These 
    composite packagings are authorized under the provisions of three 
    exemptions and have demonstrated an equivalent level of safety.
        Section 173.170. RSPA is adding a new non-bulk packaging section 
    for black powder for small arms when transported domestically and 
    reclassed as Division 4.1. For consistency with comparable provisions 
    for smokeless powder for small arms, RSPA is revising approval 
    procedures as proposed in the NPRM by requiring that black powder must 
    be examined and approved for Division 4.1 classification and the
    
    [[Page 50621]]
    
    complete package must be of the same type as that approved under 
    Sec. 173.56.
        Section 173.183. As proposed, RSPA is adding a packaging 
    authorization to allow the use of polypropylene inner packagings for 
    nitrocellulose base film.
        Section 173.225. Paragraph (a) is amended as proposed to specify 
    that inner plastic packagings of a combination packaging used for 
    transporting organic peroxides must be constructed of new resin. The 
    one commenter responding to this proposal, the Organic Peroxide 
    Producers Safety Division of the Society of the Plastics Industry, 
    petitioned for the change. RSPA agrees with the commenter that most 
    regulated organic peroxides are too sensitive to contamination to be 
    stored in packages manufactured from ``resin of unknown history.''
        Section 173.306. Paragraph (i)(1) is removed as proposed and 
    paragraphs (i)(2) through (i)(4) are redesignated accordingly as 
    paragraphs (i)(1) through (i)(3). In addition, RSPA is revising the 
    introductory text of paragraph (i) to clarify that flammability of 
    aerosols is based on obtaining a positive test result from any of the 
    three methods contained in this paragraph. This approach is consistent 
    with the ICAO Technical Instructions.
        Section 173.314. RSPA is adopting a seasonal filling limit for tank 
    cars containing anhydrous ammonia and liquefied petroleum gas based on 
    winter filling reference temperatures of 29 deg.C (85 deg.F), 32 deg.C 
    (90 deg.F), and 38 deg.C (100 deg.F), for insulated tanks, thermally-
    protected and jacketed tanks, and noninsulated tanks, respectively. 
    These filling limits would authorize a winter filling limit greater 
    than that authorized in the HM-181 final rule. RSPA believes that these 
    filling limits will ensure safety in transit while providing economic 
    relief from the requirements adopted in the HM-181 final rule. 
    Commenters uniformly supported this proposed change. The National 
    Industrial Transportation League stated this change strikes an 
    appropriate balance between safety and efficiency by avoiding the 
    necessity for increasing the number of tank car shipments (and 
    corresponding risk of spills) in winter months to achieve the same 
    overall volume. The National Propane Gas Association also supported 
    this proposal for tank cars and indicated its intent to submit a 
    proposal to RSPA later this year for adoption of seasonal filling 
    limits for cargo tanks.
    
    Part 178
    
        Sections 178.245 and 178.245-1. RSPA is making several editorial 
    changes for clarity and one significant change to allow DOT 
    Specification 51 portable tanks to have openings at locations other 
    than the top or one end of the tank under certain circumstances. 
    Commenters supported the proposal to allow bottom outlets on tank 
    containers, citing safety and economic benefits.
        Section 178.245-4. As proposed, RSPA is adding a new paragraph (e) 
    to require that a DOT 51 portable tank in an ISO framework for 
    containerized transportation must meet the requirements specified in 49 
    CFR Parts 450-453.
        Section 178.245-6. The first sentence of paragraph (a) is amended 
    as proposed to require the nameplate to be in close proximity to the 
    ASME plate.
        Section 178.270-12. RSPA is amending paragraph (a) as proposed to 
    notify manufacturers, owners and approval agencies of the requirements 
    for the number and type of closures required for filling and discharge 
    connections located below the normal liquid level of IM portable tanks.
        Section 178.601. Paragraph (g)(8) is added to list changes in one 
    or more design elements which would constitute a different drum design 
    type. Commenters supported the addition of this paragraph, but 
    recommended revisions to be consistent with an approval issued to SSCI. 
    RSPA agrees and is revising these provisions accordingly.
        Section 178.705. As proposed, a correction is made to the constant 
    in the equivalence thickness formula for U.S. Standard Units in 
    paragraph (c)(1)(iv)(B) to ensure that the resulting thickness is in 
    inches.
        Paragraph (c)(2) of this section specifies pressure relief devices 
    for metal IBCs. RSPA proposed adding a new sentence in paragraph 
    (c)(2)(ii) to clarify that the specified start-to-discharge pressure 
    requirements do not apply to fusible links unless these links are the 
    sole source of pressure relief for the IBC. RSPA's proposal did not 
    change any existing UN requirements, but simply clarified that the 
    start-to discharge pressure requirements in 178.705(c)(2)(ii) did not 
    apply to fusible devices if such devices are used in addition to other 
    venting devices. If fusible devices are the sole means for providing 
    venting relief capacity, an IBC marked ``31A'' must not exceed 65 kPa 
    (9 psig) at the fusible device operating temperature.
        Several commenters requested that RSPA not adopt this amendment as 
    proposed. It appears commenters are requesting an exception from start-
    to-discharge pressure requirements when fusible devices are the sole 
    means of pressure relief capacity. This exception would not be 
    consistent with pressure relief requirements for IBCs in the UN 
    Recommendations. The UN Recommendations specify pressure relief 
    capabilities for an IBC regardless of the type of pressure relief 
    device utilized. To maintain international consistency, such an 
    exception should first be proposed and adopted in the UN 
    Recommendations.
        RSPA is adopting this amendment in paragraph (c)(2)(ii) essentially 
    as proposed, but is replacing the phrase ``fusible links'' with 
    ``fusible devices'' to more accurately describe these devices. This 
    revision is based on a comment by the Rigid Intermediate Bulk Container 
    Association.
    
    IV. Rulemaking Analyses and Notices
    
    A. Executive Order 12866 and DOT Regulatory Policies and Procedures
    
        This final rule is not considered a significant regulatory action 
    under section 3(f) of Executive Order 12866 and therefore, was not 
    reviewed by the Office of Management and Budget. The rule is not 
    considered a significant rule under the Regulatory Policies and 
    Procedures of the Department of Transportation [44 FR 11034].
        The economic impact of this final rule is expected to result in 
    only minimal costs to certain persons subject to the HMR and may result 
    in modest cost savings to a small number of persons subject to the HMR 
    and to the agency. Because of the minimal economic impact of this rule, 
    preparation of a regulatory impact analysis or a regulatory evaluation 
    is not warranted.
    
    B. Executive Order 12612
    
        This final rule has been analyzed in accordance with the principles 
    and criteria contained in Executive Order 12612 (``Federalism''). 
    Federal law expressly preempts State, local, and Indian tribe 
    requirements applicable to the transportation of hazardous material 
    that cover certain subjects and are not substantively the same as 
    Federal requirements. 49 U.S.C. 5125(b)(1). These subjects are:
        (1) The designation, description, and classification of hazardous 
    material;
        (2) The packing, repacking, handling, labeling, marking, and 
    placarding of hazardous material;
        (3) The preparation, execution, and use of shipping documents 
    pertaining to hazardous material, and requirements respecting the 
    number, content, and placement of such documents;
        (4) The written notification, recording, and reporting of the 
    unintentional release in transportation of hazardous material; or
        (5) The design, manufacturing, fabrication, marking, maintenance,
    
    [[Page 50622]]
    
    reconditioning, repairing, or testing of a package or container which 
    is represented, marked, certified, or sold as qualified for use in the 
    transportation of hazardous material.
        This final rule preempts State, local, or Indian tribe requirements 
    concerning these subjects unless the non-Federal requirements are 
    ``substantively the same'' (see 49 CFR 107.202(d) as the Federal 
    requirements.
        Federal law (49 U.S.C. 5125(b)(2)) provides that if DOT issues a 
    regulation concerning any of the covered subjects, DOT must determine 
    and publish in the Federal Register the effective date of Federal 
    preemption. The effective date may not be earlier than the 90th day 
    following the date of issuance of the final rule and not later than two 
    years after the date of issuance. RSPA has determined that the 
    effective date of Federal preemption for these requirements will be 
    January 1, 1997. Thus, RSPA lacks discretion in this area, and 
    preparation of a federalism assessment is not warranted.
    
    C. Regulatory Flexibility Act
    
        This final rule responds to petitions for rulemaking. It is 
    intended to provide clarification of the regulations and relax certain 
    requirements. Therefore, I certify that this final rule will not have a 
    significant economic impact on a substantial number of small entities.
    
    D. Paperwork Reduction Act
    
        There are no new information collection requirements in this final 
    rule.
    
    E. Regulation Identifier Number (RIN)
    
        A regulation identifier number (RIN) is assigned to each regulatory 
    action listed in the Unified Agenda of Federal Regulations. The 
    Regulatory Information Service Center publishes the Unified Agenda in 
    April and October of each year. The RIN number contained in the heading 
    of this document can be used to cross-reference this action with the 
    Unified Agenda.
    
    List of Subjects
    
    49 CFR Part 171
    
        Exports, Hazardous materials transportation, Hazardous waste, 
    Imports, Incorporation by reference, Reporting and recordkeeping 
    requirements.
    
    49 CFR Part 172
    
        Hazardous materials transportation, Hazardous waste, Labels, 
    Markings, Packaging and containers, Reporting and recordkeeping 
    requirements.
    
    49 CFR Part 173
    
        Hazardous materials transportation, Packaging and containers, 
    Radioactive materials, Reporting and recordkeeping requirements, 
    Uranium.
    
    49 CFR Part 178
    
        Hazardous materials transportation, Motor vehicle safety, Packaging 
    and containers, Reporting and recordkeeping requirements.
    
        In consideration of the foregoing, 49 CFR Chapter I is amended as 
    follows:
    
    PART 171--GENERAL INFORMATION, REGULATIONS, AND DEFINITIONS
    
        1. The authority citation for Part 171 continues to read as 
    follows:
    
        Authority: 49 U.S.C. 5101-5127; 49 CFR 1.53.
    
        2. In the Sec. 171.7(a)(3) Table, three new entries are added in 
    alphabetical order to read as follows:
    
    
    Sec. 171.7  Reference material.
    
        (a) Matter incorporated by reference * * *
        (3) Table of material incorporated by reference. * * *
    
    ------------------------------------------------------------------------
                                                                    49 CFR  
                    Source and name of material                   reference 
    ------------------------------------------------------------------------
                                                                            
    *                  *                  *                  *              
             American Society for Testing and Materials                     
                                                                            
    *                  *                  *                  *              
             *                  *                  *                        
        ASTM A 366/A 366M-91 (1993)e1 Standard Specification                
         for Steel, Sheet, Carbon, Cold-Rolled, Commercial                  
         Quality...............................................      178.601
    *                  *                  *                  *              
             *                  *                  *                        
        ASTM A 568/A 568M-95 Standard Specification for Steel,              
         Sheet, Carbon, and High-Strength, Low-Alloy, Hot-                  
         Rolled and Cold-Rolled, General Requirements for......      178.601
    *                  *                  *                  *              
             *                  *                  *                        
                                                                            
                     Health and Human Services                              
        Centers for Disease Control and Prevention, 1600                    
         Clifton Road N.E., Atlanta GA 30333...................             
        Also available from: Superintendent of Documents,                   
         Government Printing Office (GPO), HHS Publication No.              
         (CDC) 93-8395, Biosafety in Microbiological and                    
         Biomedical Laboratories, 3rd Edition, May 1993,                    
         Section II............................................      173.134
    *                  *                  *                  *              
             *                  *                  *                        
    ------------------------------------------------------------------------
    
    * * * * *
        3. In Sec. 171.14, as amended at 61 FR 7959, effective October 1, 
    1996, paragraph (a) introductory text through paragraph (a)(2)(i) and 
    paragraph (b) are removed, paragraphs (a)(2)(ii) and (a)(2)(iii) are 
    redesignated as paragraphs (b) and (c) and a new paragraph (a) is added 
    to read as follows:
    
    
    Sec. 171.14  Transitional provisions for implementing requirements 
    based on the UN Recommendations.
    
    * * * * *
        (a) Previously filled packages--(1) Packages filled prior to 
    October 1, 1991. Notwithstanding the marking and labeling provisions of 
    subparts D and E, respectively, of part 172, and the packaging 
    provisions of part 173 and subpart B of Part 172 of this subchapter, a 
    package may be offered for transportation and transported prior to 
    October 1, 2001, if it--
        (i) Conforms to the old requirements of this subchapter in effect 
    on September 30, 1991;
        (ii) Was filled with a hazardous material prior to October 1, 1991;
        (iii) Is marked ``Inhalation Hazard'' if appropriate, in accordance 
    with Sec. 172.313 of this subchapter or Special Provision 13, as 
    assigned in the Sec. 172.101 Table; and
    
    [[Page 50623]]
    
        (iv) Is not emptied and refilled on or after October 1, 1991.
        (2) Non-bulk packages filled prior to October 1, 1996. 
    Notwithstanding the packaging provisions of subpart B of Part 172 and 
    the packaging provisions of part 173 of this subchapter with respect to 
    UN standard packagings, a non-bulk package other than a cylinder may be 
    offered for transportation and transported domestically prior to 
    October 1, 1999, if it--
        (i) Conforms to the requirements of this subchapter in effect on 
    September 30, 1996;
        (ii) Was filled with a hazardous material prior to October 1, 1996; 
    and
        (iii) Is not emptied and refilled on or after October 1, 1996.
    * * * * *
    
    PART 172--HAZARDOUS MATERIALS TABLE, SPECIAL PROVISIONS, HAZARDOUS 
    MATERIALS COMMUNICATIONS, EMERGENCY RESPONSE INFORMATION, AND 
    TRAINING REQUIREMENTS
    
        4. The authority citation for Part 172 continues to read as 
    follows:
    
        Authority: 49 U.S.C. 5101-5127; 49 CFR 1.53.
    
        5. In Sec. 172.101, a new paragraph (c)(10)(iii) is added to read 
    as follows:
    
    
    Sec. 172.101  Purpose and use of hazardous materials table.
    
    * * * * *
        (c) * * *
        (10) * * *
        (iii) A mixture or solution not identified in the Table by a 
    specific description, comprised of two or more hazardous materials in 
    the same hazard class, shall be described using an appropriate shipping 
    description (e.g., ``Flammable liquid, n.o.s.''). Some mixtures may be 
    more appropriately described according to their application, such as 
    ``Coating solution'' or ``Extracts, flavoring liquid'' rather than by 
    an n.o.s. entry. Under the provisions of subparts C and D of this part, 
    the technical names of at least two components most predominately 
    contributing to the hazards of the mixture or solution may be required 
    in association with the proper shipping name.
    * * * * *
    
    
    Sec. 172.101  [Amended]
    
        6. In addition, in Sec. 172.101, in paragraph (c)(12), the 
    following changes are made:
        a. In paragraph (c)(12)(ii), in the last sentence, the wording 
    ``technical name of the constituent'' is revised to read ``technical 
    name of one or more constituents''.
        b. In paragraph (c)(12)(iii), in the first sentence, the wording 
    ``by a specific description,'' is revised to read ``specifically by 
    name (e.g., acetyl chloride),''.
        7. In Sec. 172.101, the Hazardous Materials Table, as amended at 61 
    FR 18932 and 61 FR 27172 effective October 1, 1996, is amended by 
    adding in alphabetical order or revising the following entries to read 
    as follows:
    
    
    Sec. 172.101  Purpose and use of hazardous materials table.
    
    * * * * *
    
                                                                                Sec.  172.101  Hazardous Materials Table                                                                            
                                                                                                                                                                                                    
                     Hazardous                                                                              (8)  Packaging (Sec.  173.***)      (9)  Quantity  limitations      (10) Vessel  stowage
                     materials       Hazard                                                              -------------------------------------------------------------------------------------------
      Symbols    descriptions and   class or    Identification      PG     Label codes       Special                                                                                                
                  proper shipping   Division         Nos.                                  provisions     Exceptions   Non-bulk     Bulk        Passenger      Cargo aircraft   location     Other  
                       names                                                                                                                  aircraft/rail         only                            
    (1)          (2).............        (3)   (4)                    (5)  (6)........  (7).............  (8A)......       (8B)  (8C)......  (9A)...........  (9B)...........      (10A)       (10B)
    ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                               *                   *                   *                   *                   *                   *                   *                                            
                 [ADD:]                                                                                                                                                                             
    D            Black powder for        4.1   NA0027                   I  4.1........  70..............  None......        170  None......  Forbidden......  Forbidden......          E            
                  small arms.                                                                                                                                                                       
                               *                   *                   *                   *                   *                   *                   *                                            
                 [REVISE:]                                                                                                                                                                          
                 Hydrogen                6.1   UN3294                   I  6.1, 3.....  2,25,B9,          None......        227  244.......  Forbidden......  Forbidden......          D          40
                  cyanide,                                                               B14,B32, B74,                                                                                              
                  solution in                                                            T38, T43,T45.                                                                                              
                  alcohol with                                                                                                                                                                      
                  not more than                                                                                                                                                                     
                  45 percent                                                                                                                                                                        
                  hydrogen                                                                                                                                                                          
                  cyanide.                                                                                                                                                                          
                                                                                                                                                                                                    
                                                                                                                                                                                                    
                               *                   *                   *                   *                   *                   *                   *                                            
                 Methanesulfonyl         6.1   UN3246                   I  6.1, 8.....  2,25, B9,         None......        227  244.......  Forbidden......  Forbidden......          D          40
                  chloride.                                                              B14,B32, B74,                                                                                              
                                                                                         T38, T43, T45.                                                                                             
                               *                   *                   *                   *                   *                   *                   *                                            
    +            Methyl vinyl              3   UN1251                  II  3, 6.1.....  1,25,B9,          None......        226  244.......  Forbidden......  Forbidden......          B          40
                  ketone.                                                                B14,B30,                                                                                                   
                                                                                         B72,T38, T43,                                                                                              
                                                                                         T44.                                                                                                       
                               *                   *                   *                   *                   *                   *                   *                                            
    
    Sec. 172.101  [Amended]
    
        8. In addition, in Sec. 172.101, in the Hazardous Materials Table, 
    the following changes are made:
        a. For the entry ``Benzyl chloride'', in column (7), Special 
    Provision ``N43'' is revised to read ``N42''.
        b. For the entry ``Chlorosilanes, corrosive, flammable, n.o.s.'', 
    in Column (7), Special Provisions ``,T18, T26'' are added following 
    ``B100''.
        c. For the entry ``Chlorosilanes, corrosive, nos.'', in Column (7), 
    Special Provisions, ``T8, T26'' are added following ``B2''.
        d. For the entry, ``Chlorosilanes, water-reactive, flammable, 
    corrosive, n.o.s.'', in Column (7), Special Provisions ``,T24, T26'' 
    are added following ``A2''.
        e. For the entries ``Organic peroxide type F, liquid, temperature 
    controlled'' and ``Organic peroxide type F, solid, temperature 
    controlled'', in Column (8A), the reference ``225'' is removed each 
    place it appears and ``None'' added in each place, and in Column (8C), 
    the
    
    [[Page 50624]]
    
    reference ``None'' is removed each place it appears and ``225'' added 
    in each place.
        f. For the entry ``Organic peroxide type F, solid'', in Column 
    (8C), the reference ``None'' is removed and ``225'' is added in its 
    place.
        g. For the entry ``Phosphorus pentafluoride'', in Column (7), the 
    wording ``1'' is removed and ``2, B9, B14'' is added in its place; in 
    Column (8B) ``302'' is revised to read ``302, 304''; and in Column 
    (8C), ``None'' is revised to read ``314, 315''.
        h. For the entry ``Tungsten hexafluoride'', in Column (7), special 
    provision ``3'' is revised to read ``2''.
        i. For the entries ``Metal carbonyls, n.o.s., UN3281, PG I''; 
    ``Nitriles, toxic, flammable, n.o.s., UN3275, PG I''; ``Nitriles, 
    toxic, n.o.s., UN3276, PG I''; ``Organoarsenic compound, n.o.s., 
    UN3280, PG I''; ``Organophosphorus compound, toxic, flammable, n.o.s., 
    UN3279, PG I''; and ``Organophosphorus compound, toxic, n.o.s., UN3278, 
    PG I'', in Column (7), Special Provision ``5'' is added.
        j. For each of the following entries, in Column (8A), the word 
    ``None'' is removed and ``151'' added in its place:
    
    Alkali metal amides
    Alkaline earth metal alloys, n.o.s.
    Aluminum carbide
    Aluminum ferrosilicon powder (both entries)
    Aluminum powder, uncoated (both entries)
    Aluminum processing by-products (both entries)
    Aluminum silicon powder, uncoated
    Barium
    Calcium
    Calcium carbide, in PG II
    Calcium cyanamide with more than 0.1 percent of calcium carbide
    Calcium manganese silicon
    Calcium silicide (both entries)
    Cerium, turnings or gritty powder
    Ferrosilicon with 30 percent or more but less than 90 percent silicon
    Lithium ferrosilicon
    Lithium hydride, fused solid
    Lithium silicon
    Magnesium granules, coated particle size not less than 149 microns
    Magnesium powder or Magnesium alloys, powder
    Magnesium silicide
    Maneb stabilized or Maneb preparations, stabilized against self-heating
    Metal hydrides, water-reactive, n.o.s., in PG II
    Metallic substance, water-reactive, n.o.s., in PG II and III
    Phosphorous pentasulfide, free from yellow or white phosphorous
    Sodium aluminum hydride
    Water-reactive solid, corrosive, n.o.s., in PG II and III
    Water-reactive solid, flammable, n.o.s., in PG II and III
    Water-reactive solid, n.o.s., in PG II and III
    Water-reactive solid, toxic, n.o.s., in PG II and III
    Zinc ashes
    
        9. In Sec. 172.102, in paragraph (c)(1) Special Provisions 25 and 
    70 are added, in paragraph (c)(3) Special Provision B59 is revised, and 
    in paragraph (c)(5), Special Provision N42 is added, to read as 
    follows:
    
    
    Sec. 172.102  Special provisions.
    
    * * * * *
        (c) * * *
        (1) * * *
    * * * * *
        25  Until October 1, 1997, this material may be transported or 
    offered for transportation in a packaging authorized under the 
    regulations in effect on September 30, 1996.
    * * * * *
        70  Black powder that has been classed in accordance with the 
    requirements of Sec. 173.56 of this subchapter may be reclassed and 
    offered for domestic transportation as a Division 4.1 material if it 
    is offered for transportation and transported in accordance with the 
    limitations and packaging requirements of Sec. 173.170 of this 
    subchapter.
    * * * * *
        (3) * * *
    * * * * *
        B59  Water-tight, sift-proof, closed-top, metal-covered hopper 
    cars are also authorized provided that the lading is covered with a 
    nitrogen blanket.
    * * * * *
        (5) * * *
    * * * * *
        N42  1A1 drums made of carbon steel with thickness of body and 
    heads of not less than 1.3 mm (0.050 inch) and with a corrosion-
    resistant phenolic lining are authorized for stabilized benzyl 
    chloride if tested and certified to the Packing Group I performance 
    level at a specific gravity of not less than 1.8.
    * * * * *
        10. In Sec. 172.302, paragraph (b) is revised to read as follows:
    
    
    Sec. 172.302  General marking requirements for bulk packagings.
    
    * * * * *
        (b) Size of markings. Except as otherwise provided, markings 
    required by this subpart on bulk packagings must--
        (1) Have a width of at least 6.0 mm (0.24 inch) and a height of at 
    least 100 mm (3.9 inches) for rail cars;
        (2) Have a width of at least 4.0 mm (0.16 inch) and a height of at 
    least 25 mm (one inch) for portable tanks with capacities of less than 
    3,785 L (1,000 gallons) and intermediate bulk containers; and
        (3) Have a width of at least 6.0 mm (0.24 inch) and a height of at 
    least 50 mm (2.0 inches) for cargo tanks and other bulk packagings.
    * * * * *
    
    
    Sec. 172.504  [Amended]
    
        11. In Sec. 172.504, the last sentence of paragraph (f)(8) is 
    removed.
    
    PART 173--SHIPPERS--GENERAL REQUIREMENTS FOR SHIPMENTS AND 
    PACKAGINGS
    
        12. The authority citation for Part 173 continues to read as 
    follows:
    
        Authority: 49 U.S.C. 5102-5127; 49 CFR 1.53.
    
        13. In Sec. 173.24a, the last sentence of paragraph (a)(3) and 
    paragraph (b)(2) are revised, to read as follows:
    
    
    Sec. 173.24a  Additional general requirements for non-bulk packagings 
    and packages.
    
        (a) * * *
        (3) * * * Cushioning material must not be capable of reacting 
    dangerously with the contents of the inner packagings or having its 
    protective properties significantly weakened in the event of leakage.
    * * * * *
        (b) * * *
        (2) Except as otherwise provided in this section, a non-bulk 
    packaging may not be filled with a hazardous material to a gross mass 
    greater than the maximum gross mass marked on the packaging.
    * * * * *
    
    
    Sec. 173.24b  [Amended]
    
        14. In Sec. 173.24b, in the first sentence in paragraph (b), the 
    wording ``stainless steel is steel'' is revised to read ``the reference 
    stainless steel is stainless steel''.
        15. In Sec. 173.28, paragraphs (b)(4) and (b)(7)(iv)(C) are revised 
    and a new sentence is added in paragraph (c)(2) following the first 
    sentence, to read as follows:
    
    
    Sec. 173.28  Reuse, reconditioning and remanufacture of packagings.
    
    * * * * *
        (b) * * *
        (4) Metal and plastic drums and jerricans used as single packagings 
    or the outer packagings of composite packagings are authorized for 
    reuse only when they are marked in a permanent manner (e.g., embossed) 
    in millimeters with the nominal (for metal packagings) or minimum (for 
    plastic packagings)
    
    [[Page 50625]]
    
    thickness of the packaging material, as required by Sec. 178.503(a)(9) 
    of this subchapter, and--
        (i) Except as provided in paragraph (b)(4)(ii) of this section, 
    conform to the following minimum thickness criteria:
    
    ------------------------------------------------------------------------
                                Minimum thickness of packaging material     
     Maximum capacity not --------------------------------------------------
             over                                        Plastic drum or    
                            Metal drum or jerrican           jerrican       
    ------------------------------------------------------------------------
    20 L.................  0.63 mm (0.025 inch)....  1.1 mm (0.043 inch).   
    30 L.................  0.73 mm (0.029 inch)....  1.1 mm (0.043 inch).   
    40 L.................  0.73 mm (0.029 inch)....  1.8 mm (0.071 inch).   
    60 L.................  0.92 mm (0.036 inch)....  1.8 mm (0.071 inch).   
    120 L................  0.92 mm (0.036 inch)....  2.2 mm (0.087 inch).   
    220 L................  0.92 mm (0.036 inch) 1..  2.2 mm (0.087 inch).   
    450 L................  1.77 mm (0.070 inch)....  5.0 mm (0.197 inch).   
    ------------------------------------------------------------------------
    \1\ Metal drums or jerricans constructed with a minimum thickness of    
      0.82 mm body and 1.09 mm heads are authorized until December 31, 1996.
      After that date, metal drums or jerricans constructed with a minimum  
      thickness of 0.82 mm body and 1.11 heads are authorized.              
    
        (ii) For stainless steel drums and jerricans, conform to a minimum 
    wall thickness as determined by the following equivalence formula:
    
    Formula for Metric Units
    [GRAPHIC] [TIFF OMITTED] TR26SE96.023
    
    Formula for U.S. Standard Units
    [GRAPHIC] [TIFF OMITTED] TR26SE96.024
    
    where:
    e1=required equivalent wall thickness of the metal to be used (in 
    mm or, for U.S. Standard units, use inches).
    e0=required minimum wall thickness for the reference steel (in mm 
    or, for U.S. Standard units, use inches).
    Rm1=guaranteed minimum tensile strength of the metal to be used 
    (in N/mm2 or for U.S. Standard units, use pounds per square inch).
    A1=guaranteed minimum elongation (as a percentage) of the metal to 
    be used on fracture under tensile stress (see paragraph (c)(1) of this 
    section).
    * * * * *
        (7) * * *
        (iv) * * *
        (C) another material or thickness when approved under the 
    conditions established by the Associate Administrator for Hazardous 
    Materials Safety for reuse without retesting.
        (c) * * *
        (2) * * * For a UN 1H1 plastic drum, replacing a removable gasket 
    or closure device with a replacement of the same design and material 
    which provides equivalent performance does not constitute 
    reconditioning. * * *
    * * * * *
    
    
    Sec. 173.28  [Amended]
    
        16. In addition, in Sec. 173.28, in the first sentence of paragraph 
    (c)(2), the wording ``or a UN 1H1 plastic drum'' is added immediately 
    following the wording ``other than a metal drum''.
        17. In Sec. 173.32, in paragraph (d) a new third sentence is added 
    at the end of the paragraph, in paragraph (e)(2)(i), the second 
    sentence is revised, and a new paragraph (t) is added, to read as 
    follows:
    
    
    Sec. 173.32  Qualification, maintenance and use of portable tanks other 
    than Specification IM portable tanks.
    
    * * * * *
        (d) * * * A stainless steel portable tank internally lined with 
    polyethylene, which was constructed on or before October 1, 1996, and 
    complies with all requirements of Specification 57 except that it is 
    equipped with a polypropylene discharge ball valve and polypropylene 
    secondary discharge opening closure, may be marked as a Specification 
    57 portable tank and used in accordance with the provisions of this 
    section.
        (e) * * *
        (2) * * *
        (i) * * * Each Specification 57 tank must be leak tested by a 
    minimum sustained air pressure of at least three pounds per square inch 
    gage applied to the entire tank. * * *
    * * * * *
        (t) Exemption portable tanks based on DOT 51 portable tanks. (1) 
    The owner of a portable tank constructed in accordance with and used 
    under an exemption issued prior to August 31, 1996, that was in 
    conformance with the requirements for Specification DOT 51 portable 
    tanks with the exception of the location of fill and discharge outlets, 
    shall examine the portable tank and its design to determine if it meets 
    the new outlet requirements contained in Sec. 178.245-1(d) of this 
    subchapter. If the owner determines that the portable tank is in 
    compliance with all the requirements of Sec. 178.245 of this 
    subchapter, the exemption number stenciled on the portable tank shall 
    be removed and the specification plate (or a plate placed adjacent to 
    the specification plate) shall be durably marked ``DOT 51--E*****'' 
    (where ***** is to be replaced by the exemption number).
        (2) During the period the portable tank is in service, and for one 
    year thereafter, the owner of the portable tank must retain on file at 
    its principal place of business a copy of the last exemption in effect.
    
    
    Sec. 173.115  [Amended]
    
        18. In Sec. 173.115, in paragraph (b)(1), the wording ``(41 psia)'' 
    is revised to read ``(40.6 psia)''.
        19. In Sec. 173.120, a new paragraph (b)(3) is added to read as 
    follows:
    
    
    Sec. 173.120  Class 3--Definitions.
    
    * * * * *
        (b) * * *
        (3) A combustible liquid which does not sustain combustion is not 
    subject to the requirements of this subchapter as a combustible liquid. 
    A procedure for determining if a material sustains combustion when 
    heated under test conditions and exposed to an external source of flame 
    is provided in Appendix H of this part.
    * * * * *
    
    
    Sec. 173.121  [Amended]
    
        20. In Sec. 173.121, in the second sentence of paragraph (a), the 
    wording ``or indicates that the packing group is to be determined on 
    the basis of the grouping criteria for Class 3,'' is removed.
        21. In Sec. 173.125, paragraph (a) is revised to read as follows:
    
    
    Sec. 173.125  Class 4--Assignment of packing group.
    
        (a) The packing group of a Class 4 material is assigned in Column 
    (5) of the Sec. 172.101 Table. When the Sec. 172.101 Table provides 
    more than one packing group for a hazardous material, the packing group 
    shall be determined on the basis of test results following test methods 
    given in appendix E of this part and by applying the appropriate 
    criteria given in this section.
    * * * * *
        22. In Sec. 173.127, the section heading is revised, paragraph 
    (b)(1) is removed, paragraphs (b)(2) and (b)(3) are redesignated as 
    paragraphs (b)(1) and (b)(2), and the paragraph (b) heading and the 
    newly designated paragraph (b)(1) introductory text are revised to read 
    as follows:
    
    
    Sec. 173.127  Class 5, Division 5.1--Definition and assignment of 
    packing groups.
    
    * * * * *
        (b) Assignment of packing group. (1) The packing group of a 
    Division 5.1 material shall be as assigned in Column (5) of the 
    Sec. 172.101 Table. When the Sec. 172.101 Table provides more than one 
    packing group for a hazardous material,
    
    [[Page 50626]]
    
    the packing group shall be determined on the basis of test results 
    following test methods given in appendix F of this part and by applying 
    the following criteria:
    * * * * *
    
    
    Sec. 173.133  [Amended]
    
        23. In Sec. 173.133, in paragraph (a) introductory text, in the 
    second sentence, the wording ``more than one packing group and hazard 
    zone'' is revised to read ``more than one packing group or hazard 
    zone''.
        24. In Sec. 173.134, the introductory text of paragraph (b)(3)(ii) 
    is revised and a new paragraph (b)(4) is added to read as follows:
    
    
    Sec. 173.134  Class 6, Division 6.2--Definitions, exceptions and 
    packing group assignments.
    
    * * * * *
        (b) * * *
        (3) * * *
        (ii) For other than a waste culture or stock of an infectious 
    substance, the specific packaging requirements of Sec. 173.197, if 
    packaged in a rigid non-bulk packaging conforming to--
    * * * * *
        (4) A waste culture or stock of infectious substances may be 
    offered for transportation and transported as a regulated medical waste 
    when the culture or stock--
        (i) Conforms to Biosafety Level 1, 2 or 3, as defined in HHS 
    Publication No. (CDC) 93-8395, Biosafety in Microbiological and 
    Biomedical Laboratories. 3rd Edition, May 1993, Section II;
        (ii) Is packaged in accordance with requirements specified in 
    Sec. 173.197; and
        (iii) Is transported by a private or contract carrier using a 
    vehicle dedicated to the transportation of medical waste.
    * * * * *
        25. In Sec. 173.151, the section heading is revised and a new 
    paragraph (d) is added to read as follows:
    
    
    Sec. 173.151  Exceptions for Class 4.
    
    * * * * *
        (d) Limited quantities of Division 4.3 (dangerous when wet) 
    material. Limited quantities of Division 4.3 (dangerous when wet) 
    solids in Packing Groups II and III are excepted from labeling, unless 
    offered for transportation or transported by aircraft, and the 
    specification packaging requirements of this subchapter when packaged 
    in combination packagings according to this paragraph. In addition, 
    shipments of limited quantities are not subject to subpart F 
    (Placarding) of part 172 of this subchapter. Each package must conform 
    to the packaging requirements of subpart B of this part and may not 
    exceed 30 kg (66 pounds) gross weight. The following combination 
    packagings are authorized:
        (1) For Division 4.3 solids in Packing Group II, inner packagings 
    not over 0.5 kg (1.1 pound) net capacity each, packed in strong outer 
    packagings; and
        (2) For Division 4.3 solids in Packing Group III, inner packagings 
    not over 1 kg (2.2 pounds) net capacity each, packed in strong outer 
    packagings.
        26. In Sec. 173.156, paragraph (b) is revised to read as follows.
    
    
    Sec. 173.156  Exceptions for ORM materials.
    
    * * * * *
        (b) ORM-D. Packagings for ORM-D materials are specified according 
    to hazard class in Secs. 173.150 through 173.155 and in Sec. 173.306. 
    In addition to other exceptions specified for ORM-D materials in this 
    part:
        (1) Strong outer packagings as specified in this part, the marking 
    requirements specified in Sec. 172.316 of this subchapter, and the 30 
    kg (66 pounds) gross weight limitation are not required for materials 
    classed as ORM-D when--
        (i) Unitized in cages, carts, boxes or similar overpacks;
        (ii) Offered for transportation or transported by:
        (A) Rail;
        (B) Private or contract motor carrier; or
        (C) Common carrier in a vehicle under exclusive use for such 
    service; and
        (iii) Transported to or from a manufacturer, a distribution center, 
    or a retail outlet, or transported to a disposal facility from one 
    offeror.
        (2) The 30 kg (66 pounds) gross weight limitation does not apply to 
    materials classed as ORM-D when offered for transportation, or 
    transported, by highway or rail between a manufacturer, a distribution 
    center, and a retail outlet provided--
        (i) Inner packagings conform to the quantity limits for inner 
    packagings specified in Secs. 173.150(b), 173.152(b), 173.154(b), 
    173.155(b) and 173.306 (a) and (b), as appropriate;
        (ii) The inner packagings are packed into corrugated fiberboard 
    trays to prevent them from moving freely;
        (iii) The trays are placed in a fiberboard box which is banded and 
    secured to a wooden pallet by metal, fabric, or plastic straps, to form 
    a single palletized unit;
        (iv) The package conforms to the general packaging requirements of 
    subpart B of this part;
        (v) The maximum net quantity of hazardous material permitted on one 
    palletized unit is 250 kg (550 pounds); and
        (vi) The package is properly marked in accordance with Sec. 172.316 
    of this subchapter.
        27. In Sec. 173.158, paragraph (d) is revised, and paragraph (f)(1) 
    is amended by adding a second sentence at the end of the paragraph to 
    read as follows:
    
    
    Sec. 173.158  Nitric acid.
    
    * * * * *
        (d) Nitric acid of 90 percent or greater concentration, when 
    offered for transportation or transported by rail, highway, or water 
    may be packaged as follows:
        (1) In 4C1, 4C2, 4D or 4F wooden boxes with inner packagings 
    consisting of glass bottles further individually overpacked in tightly 
    closed metal packagings. Glass bottles must be of 2.5 L (0.66 gallon) 
    or less capacity and cushioned with a non-reactive, absorbent material 
    within the metal packagings.
        (2) In combination packagings with 1A2, 1B2, 1D, 1G, 1H2, 3H2 or 4G 
    outer packagings with inner glass packagings of 2.5 L (0.66 gallons) or 
    less capacity cushioned with a non-reactive, absorbent material and 
    packed within a tightly closed intermediate packaging of metal or 
    plastic.
        (f) * * *
        (1) * * * 6HH1 and 6HA1 composite packaging with plastic inner 
    receptacles meeting the compatibility requirements Sec. 173.24(e) 
    (e.g., PFA Teflon) are authorized.
    * * * * *
        28. Section 173.170 is added to read as follows:
    
    
    Sec. 173.170  Black powder for small arms.
    
        Black powder for small arms that has been classed in Division 1.1 
    may be reclassed as a Division 4.1 material, for domestic 
    transportation by motor vehicle, rail freight, and cargo vessel only, 
    subject to the following conditions:
        (a) The powder must be examined and approved for Division 1.1 and 
    Division 4.1 classification in accordance with Secs. 173.56 and 173.58;
        (b) The total quantity of black powder in one motor vehicle, rail 
    car, or freight container may not exceed 45.4 kg (100 pounds) net mass, 
    and no more than four freight containers may be on board one cargo 
    vessel;
        (c) The black powder must be packed in inner metal or heavy wall 
    conductive plastic receptacles not over 450 g (15.9 ounces) net 
    capacity each, with no more than 25 cans in one outer UN 4G fiberboard 
    box. The inner packagings must be arranged and protected so as to
    
    [[Page 50627]]
    
    prevent simultaneous ignition of the contents. The complete package 
    must be of the same type which has been examined as required in 
    Sec. 173.56;
        (d) Each completed package must be marked ``BLACK POWDER FOR SMALL 
    ARMS'' and ``NA 0027''; and
        (e) Each package must bear the FLAMMABLE SOLID label.
    
    
    Sec. 173.183  [Amended]
    
        29. In Sec. 173.183, in paragraphs (a) and (b), the wording ``, 
    polypropylene canister,'' is added immediately following the wording 
    ``closed metal can'' each place it appears.
        30. In Sec. 173.225, in paragraph (a), a new sentence is added as 
    the penultimate sentence to read as follows:
    
    
    Sec. 173.225  Packaging requirements and other provisions for organic 
    peroxides.
    
        (a) * * * No used material, other than production residues or 
    regrind from the same production process, may be used in plastic 
    packagings. * * *
    * * * * *
        31. In Sec. 173.306, paragraph (i)(1) is removed, paragraphs (i)(2) 
    through (i)(4) are redesignated as paragraphs (i)(1) through (i)(3), 
    respectively, and the introductory text in paragraph (i) is revised to 
    read as follows:
    
    
    Sec. 173.306  Limited quantities of compressed gases.
    
    * * * * *
        (i) An aerosol is flammable if a positive test result is obtained 
    using any of the following test methods:
    * * * * *
        32. In Sec. 173.314, as amended at 61 FR 28676, effective October 
    1, 1996, in the paragraph (c) table, Note 2 is revised and Notes 9 and 
    10 are added, to read as follows:
    
    
    Sec. 173.314  Compressed gases in tank cars and multi-unit tank cars.
    
    * * * * *
        (c) * * *
        Notes:
    * * * * *
        2. The liquefied gas must be loaded so that the outage is at 
    least two percent of the total capacity of the tank at the reference 
    temperature of 46 deg. C (115 deg. F) for a noninsulated tank; 
    43 deg. C (110 deg. F) for a tank having a thermal protection system 
    incorporating a metal jacket that provides an overall thermal 
    conductance at 15.5 deg. C (60 deg. F) of no more than 10.22 
    kilojoules per hour per square meter per degree Celsius (0.5 Btu per 
    hour/per square foot/per degree F) temperature differential; and 
    41 deg. C (105 deg. F) for an insulated tank having an insulation 
    system incorporating a metal jacket that provides an overall thermal 
    conductance at 15.5 deg. C (60 deg. F) of no more than 1.5333 
    kilojoules per hour per square meter per degree Celsius (0.075 Btu 
    per hour/per square foot/per degree F) temperature differential.
    * * * * *
        9. For a liquefied petroleum gas, the liquefied gas must be 
    loaded so that the outage is at least one percent of the total 
    capacity of the tank at the reference temperature of 46 deg. C 
    (115 deg. F) for a noninsulated tank; 43 deg. C (110 deg. F) for a 
    tank having a thermal protection system incorporating a metal jacket 
    that provides an overall thermal conductance at 15.5 deg. C (60 deg. 
    F) of no more than 10.22 kilojoules per hour per square meter per 
    degree Celsius (0.5 Btu per hour/per square foot/per degree F) 
    temperature differential; and 41 deg. C (105 deg. F) for an 
    insulated tank having an insulation system incorporating a metal 
    jacket that provides an overall thermal conductance at 15.5 deg. C 
    (60 deg. F) of no more than 1.5333 kilojoules per hour per square 
    meter per degree Celsius (0.075 Btu per hour/per square foot/per 
    degree F) temperature differential.
        10. For liquefied petroleum gas and anhydrous ammonia, during 
    the months of November through March (winter), the following 
    reference temperatures may be used: 38 deg. C (100 deg. F) for a 
    noninsulated tank; 32 deg. C (90 deg. F) for a tank having a thermal 
    protection system incorporating a metal jacket that provides an 
    overall thermal conductance at 15.5 deg. C (60 deg. F) of no more 
    than 10.22 kilojoules per hour per square meter per degree Celsius 
    (0.5 Btu per hour/per square foot/per degree F) temperature 
    differential; and 29 deg. C (85 deg. F) for an insulated tank having 
    an insulation system incorporating a metal jacket and insulation 
    that provides an overall thermal conductance at 15.5 deg. C (60 deg. 
    F) of no more than 1.5333 kilojoules per hour per square meter per 
    degree Celsius (0.075 Btu per hour/per square foot/per degree F) 
    temperature differential. The winter reference temperatures may only 
    be used for a tank car shipped directly to a consumer for unloading 
    and not stored in transit. The offeror of the tank must inform each 
    customer that the tank car was filled based on winter reference 
    temperatures. The tank must be unloaded as soon as possible after 
    March in order to retain the specified outage and to prevent a 
    release of hazardous material which might occur due to the tank car 
    becoming liquid full at higher temperatures.
    * * * * *
    
    
    Sec. 173.314  [Amended]
    
        33. In addition, in Sec. 173.314, in the paragraph (c) table, as 
    amended at 61 FR 28676, effective October 1, 1996, the following 
    changes are made:
        a. For the entry ``Ammonia, anhydrous, or ammonia solutions >50 
    percent ammonia'', in Column 2, the wording ``Note 2'' is removed and 
    ``Notes 2, 10'' added in its place.
        b. For the entry ``Division 2.1 materials not specifically provided 
    in this table'' in Column 2, the wording ``Note 3'' is removed and the 
    wording ``Notes 9, 10'' added in its place.
    
    Appendix H to Part 173--[Amended]
    
        34. In Appendix H to Part 173, the second sentence of paragraph 
    5.(b) is revised and in paragraph 5.(h), a second sentence is added at 
    the end of the paragraph to read as follows:
    
    Appendix H to Part 173--Method of Testing for Sustained 
    Combustibility
    
    * * * * *
        5. * * *
        (b) * * * For the appropriate test temperature, see paragraph 
    5.(h) of this appendix. * * *
    * * * * *
        (h) * * * In the case of a material which has a flash point 
    above 60.5 deg. C (141 deg. F) and below 93 deg. C (200 deg. F), if 
    sustained combustion interpreted in accordance with paragraph 6. of 
    this appendix is not found at a test temperature of 5 deg. C (9 deg. 
    F) above its flash point, repeat the complete procedure with new 
    test portions, but at a test temperature of 20 deg. C (36 deg. F) 
    above its flash point.
    * * * * *
    
    PART 178--SPECIFICATIONS FOR PACKAGINGS
    
        35. The authority citation for part 178 continues to read as 
    follows:
    
        Authority: 49 U.S.C. 5101-5127; 49 CFR 1.53.
    
        36. Section 178.245-1 is revised to read as follows:
    
    
    Sec. 178.245-1  Requirements for design and construction.
    
        (a) Tanks must be seamless or welded steel construction or 
    combination of both and have a water capacity in excess of 454 kg 
    (1,000 pounds). Tanks must be designed, constructed, certified and 
    stamped in accordance with the ASME Code.
        (b) Tanks must be postweld heat treated and radiographed as 
    prescribed in the ASME Code except that each tank constructed in 
    accordance with part UHT of the ASME Code must be postweld heat 
    treated. Where postweld heat treatment is required, the tank must be 
    treated as a unit after completion of all the welds in and/or to the 
    shell and heads. The method must be as prescribed in the ASME Code. 
    Welded attachments to pads may be made after postweld heat treatment is 
    made. A tank used for anhydrous ammonia must be postweld heat treated. 
    The postweld heat treatment must be as prescribed in the ASME Code, but 
    in no event at less than 1050 deg. F tank metal temperature. 
    Additionally, tanks constructed in accordance with part UHT of the ASME 
    Code must conform to the following requirements:
        (1) Welding procedure and welder performance tests must be made
    
    [[Page 50628]]
    
    annually in accordance with section IX of the ASME Code. In addition to 
    the essential variables named therein, the following must be considered 
    to be essential variables: number of passes, thickness of plate, heat 
    input per pass, and manufacturer's identification of rod and flux. The 
    number of passes, thickness of plate and heat input per pass may not 
    vary more than 25 percent from the procedure qualification. Records of 
    the qualification must be retained for at least 5 years by the tank 
    manufacturer and made available to duly identified representatives of 
    the Department of Transportation or the owner of the tank.
        (2) Impact tests must be made on a lot basis. A lot is defined as 
    100 tons or less of the same heat and having a thickness variation no 
    greater than plus or minus 25 percent. The minimum impact required for 
    full-sized specimens shall be 20 foot-pounds (or 10 foot-pounds for 
    half-sized specimens) at 0 deg. F Charpy V-Notch in both the 
    longitudinal and transverse direction. If the lot test does not pass 
    this requirement, individual plates may be accepted if they 
    individually meet this impact requirement.
        (c) Except as provided in paragraph (d) of this section, all 
    openings in the tank shall be grouped in one location, either at the 
    top of the tank or at one end of the tank.
        (d) The following openings may be installed at locations other than 
    on the top or end of the tank:
        (1) The openings for liquid level gauging devices, pressure gauges, 
    or for safety devices, may be installed separately at the other 
    location or in the side of the shell;
        (2) One plugged opening of 2-inch National Pipe Thread or less 
    provided for maintenance purposes may be located elsewhere;
        (3) An opening of 3-inch National Pipe Size or less may be provided 
    at another location, when necessary, to facilitate installation of 
    condensing coils; or
        (4) Filling and discharge connections may be installed below the 
    normal liquid level of the tank if the tank design conforms to the 
    following requirements:
        (i) The tank must be permanently mounted in a full framework for 
    containerized transport. For each tank design, a prototype tank, must 
    fulfill the requirements of parts 450 through 453 of this title for 
    compliance with the requirements of Annex II of the International 
    Convention for Safe Containers.
        (ii) Each filling and discharge connection must be equipped with an 
    internal self-closing stop-valve capable of closing within 30 seconds 
    of actuation. Each internal self-closing stop-valve must be protected 
    by a shear section or sacrificial device located outboard of the valve. 
    The shear section or sacrificial device must break at no more than 70 
    percent of the load that would cause failure of the internal self-
    closing stop- valve.
        (iii) Each internal self-closing stop-valve must be provided with 
    remote means of automatic closure, both thermal and mechanical. The 
    thermal means of automatic closure must actuate at a temperature of not 
    over 250 deg. F.
        (e) Each uninsulated tank used for the transportation of compressed 
    gas, as defined in Sec. 173.300 of this subchapter, must have an 
    exterior surface finish that is significantly reflective, such as a 
    light reflecting color if painted, or a bright reflective metal or 
    other material if unpainted.
        37. In Sec. 178.245-4, a new paragraph (e) is added to read as 
    follows:
    
    
    Sec. 178.245-4  Tank mountings.
    
    * * * * *
        (e) A DOT 51 portable tank that meets the definition of 
    ``container'' in Sec. 450.3(a)(3) of this title must meet the 
    requirements of parts 450 through 453 of this title, in addition to the 
    requirements of this subchapter.
    
    
    Sec. 178.245-6  [Amended]
    
        38. In Sec. 178.245-6, in the first sentence of paragraph (a), the 
    wording ``on one of the heads of the tank'' is revised to read ``in 
    close proximity to the ASME ``U'' stamp certification''.
        39. In Sec. 178.270-12, in paragraph (a), the first two sentences 
    are revised to read as follows:
    
    
    Sec. 178.270-12  Valves, nozzles, piping, and gauging devices.
    
        (a) All tank nozzles, except those provided for filling and 
    discharge connections below the normal liquid level of the tank, relief 
    devices, thermometer wells, and inspection openings, must be fitted 
    with manually operated stop valves located as near the shell as 
    practicable either internal or external to the shell. Each filling and 
    discharge connection located below the normal liquid level of the tank 
    must be equipped with an internal discharge valve. * * *
    * * * * *
        40. In Sec. 178.601, the word ``or'' is removed at the end of 
    paragraph (c)(4)(iv), the period at the end of paragraph (c)(4)(v) is 
    removed and ``; or'' added in its place and new paragraphs (c)(4)(vi) 
    and (g)(8) are added to read as follows:
    
    
    Sec. 178.601  General requirements.
    
    * * * * *
        (c) * * *
        (4) * * *
        (vi) For a steel drum, variations in design elements which do not 
    constitute a different design type under the provisions of paragraph 
    (g)(8) of this section.
    * * * * *
        (g) * * *
        (8) For a steel drum with a capacity greater than 50 L (13 gallons) 
    manufactured from low carbon, cold-rolled sheet steel meeting ASTM 
    designations A366/A366M or A568/A568M, variations in elements other 
    than the following design elements are considered minor and do not 
    constitute a different drum design type, or ``different packaging'' as 
    defined in paragraph (c) of this section for which design qualification 
    testing and periodic retesting are required. Minor variations 
    authorized without further testing include changes in the identity of 
    the supplier of component material made to the same specifications, or 
    the original manufacturer of a DOT specification or UN standard drum to 
    be remanufactured. A change in any one or more of the following design 
    elements constitutes a different drum design type:
        (i) The packaging type and category of the original drum and the 
    remanufactured drum, i.e., 1A1 or 1A2;
        (ii) The style, (i.e., straight-sided or tapered);
        (iii) Except as provided in paragraph (g)(3) of this section, the 
    rated (marked) capacity and outside dimensions;
        (iv) The physical state for which the packaging was originally 
    approved (e.g., tested for solids or liquids);
        (v) An increase in the marked level of performance of the original 
    drum (i.e., to a higher packing group, hydrostatic test pressure, or 
    specific gravity to which the packaging has been tested);
        (vi) Type of side seam welding;
        (vii) Type of steel;
        (viii) An increase greater than 10% or any decrease in the steel 
    thickness of the head, body, or bottom;
        (ix) End seam type, (e.g., triple or double seam);
        (x) A reduction in the number of rolling hoops which equal or 
    exceed the diameter over the chimes;
        (xi) The location, type or size, and material of closures (other 
    than the cover of UN 1A2 drums); and
        (xii) For UN 1A2 drums:
        (A) Gasket material (e.g., plastic), or properties affecting the 
    performance of the gasket;
        (B) Configuration or dimensions of the gasket;
    
    [[Page 50629]]
    
        (C) Closure ring style including bolt size, (e.g., square or round 
    back, 0.625'' bolt); and
        (D) Closure ring thickness.
    * * * * *
        41. In Sec. 178.705, in paragraph (c)(2)(ii), a new sentence is 
    added after the first sentence to read as follows.
    
    
    Sec. 178.705  Standards for metal intermediate bulk containers.
    
    * * * * *
        (c) * * *
        (2) * * *
        (ii) * * * This does not apply to fusible devices unless such 
    devices are the only source of pressure relief for the IBC. * * *
    
    
    Sec. 178.705  [Amended]
    
        42. In addition, in Sec. 178.705, in paragraph (c)(1)(iv)(B), in 
    the second formula, the Formula for U.S. Standard units, the number 
    ``544'' is revised to read ``21.4''.
    
        Issued in Washington, DC on September 18, 1996 under authority 
    delegated in 49 CFR part 1.
    Kelley S. Coyner,
    Deputy Administrator.
    [FR Doc. 96-24398 Filed 9-25-96; 8:45 am]
    BILLING CODE 4910-60-P
    
    
    

Document Information

Published:
09/26/1996
Department:
Research and Special Programs Administration
Entry Type:
Rule
Action:
Final rule.
Document Number:
96-24398
Dates:
Effective date. The effective date of these amendments is January 1, 1997.
Pages:
50616-50629 (14 pages)
Docket Numbers:
Docket No. HM-181H, Amdt Nos. 171-147, 172-150, 173-255, 178-117
RINs:
2137-AC66: Transportation of Hazardous Materials by Railroad; Miscellaneous Amendments
RIN Links:
https://www.federalregister.gov/regulations/2137-AC66/transportation-of-hazardous-materials-by-railroad-miscellaneous-amendments
PDF File:
96-24398.pdf
CFR: (37)
49 CFR 171.7
49 CFR 171.14
49 CFR 172.101
49 CFR 172.102
49 CFR 172.302
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