49 CFR 179.101-1 - Individual specification requirements.

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There is 1 rule appearing in the Federal Register for 49 CFR 179. View below or at eCFR (GPOAccess)
§ 179.101-1 Individual specification requirements.
In addition to § 179.100, the individual specification requirements are as follows:
DOT specification Insulation Bursting pressure (psig) Minimum plate thickness (inches) Test pressure (psig) Manway cover thickness Bottom outlet Bottom washout Reference(179.***)
1 When steel of 65,000 to 81,000 p.s.i. minimum tensile strength is used, the thickness of plates shall be not less than 5/8 inch, and when steel of 81,000 p.s.i. minimum tensile strength is used, the minimum thickness of plate shall be not less than 9/16 inch.
2 When approved material other than aluminum alloys are used, the thickness shall be not less than 21/4 inches.
3 When steel of 65,000 p.s.i. minimum tensile strength is used, minimum thickness of plates shall be not less than 1/2 inch.
4 Tank cars not equipped with a thermal protection or an insulation system used for the transportation of a Class 2 (compressed gas) material must have at least the upper two-thirds of the exterior of the tank, including manway nozzle and all appurtenances in contact with this area, finished with a reflective coat of white paint.
5 For inside diameter of 87 inches or less, the thickness of plates shall be not less than 1/2 inch.
6 See AAR Specifications for Tank Cars, appendix E, E4.01 (IBR, see § 171.7 of this subchapter), and § 179.103-2.
7 When the use of nickel is required by the lading, the thickness shall not be less than two inches.
105A100ALW Yes 500 5/8 100 2 2 1/2 No No
105A200ALW Yes 500 5/8 200 2 2 1/2 No No
105A300ALW Yes 750 5/8 300 2 2 5/8 No No
105A100W Yes 500 3 9/16 100 2 1/4 No No
105A200W Yes 500 3 9/16 200 2 1/4 No No
105A300W Yes 750 1 11/16 300 7 2 1/4 No No
105A400W Yes 1,000 1 11/16 400 7 2 1/4 No No
105A500W Yes 1,250 1 11/16 500 2 1/4 No No 102-1, 102-2
105A600W Yes 1,500 1 11/16 600 2 1/4 No No 102-4, 102-17
109A100ALW Optional 500 5/8 100 2 2 1/2 No Optional
109A200ALW Optional 500 5/8 200 2 2 1/2 No Optional
109A300ALW Optional 750 5/8 300 2 2 5/8 No Optional
109A300W Optional 500 1 11/16 300 2 1/4 No Optional
112A200W Optional 4 500 3,5 9/16 200 2 1/4 No No
112A340W Optional 4 850 1 11/16 340 2 1/4 No No
112A400W Optional 4 1,000 1 11/16 400 2 1/4 No No
112A500W Optional 4 1,250 1 11/16 500 2 1/4 No No
114A340W Optional 4 850 1 11/16 340 6 Optional Optional 103
114A400W Optional 4 1,000 1 11/16 400 6 Optional Optional 103
120A200ALW Yes 500 5/8 200 2 2 1/2 Optional Optional 103
120A100W Yes 500 3 9/16 100 2 1/4 Optional Optional 103
120A200W Yes 500 3 9/16 200 2 1/4 Optional Optional 103
120A300W Yes 750 1 11/16 300 2 1/4 Optional Optional 103
120A400W Yes 1,000 1 11/16 400 2 1/4 Optional Optional 103
120A500W Yes 1,250 1 11/16 500 2 1/4 Optional Optional 103
[Amdt. 179-52, 61 FR 28679, June 5, 1996 as amended at 66 FR 45390, Aug. 28, 2001; 68 FR 75760, Dec. 31, 2003]

Title 49 published on 2013-10-01

The following are only the Rules published in the Federal Register after the published date of Title 49.

For a complete list of all Rules, Proposed Rules, and Notices view the Rulemaking tab.

  • 2013-10-02; vol. 78 # 191 - Wednesday, October 2, 2013
    1. 78 FR 60745 - Hazardous Materials: Minor Editorial Corrections and Clarifications (RRR)
      GPO FDSys XML | Text
      DEPARTMENT OF TRANSPORTATION, Pipeline and Hazardous Materials Safety Administration
      Final rule.
      Effective date: October 1, 2013. The incorporation by reference of certain publications listed in the rule was approved by the Director of the Federal Register as of January 7, 2013.
      49 CFR Parts 107, 130, 171, 172, 173, 174, 177, 178, 179, and 180

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United States Code

Title 49 published on 2013-10-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 49 CFR 179 after this date.

  • 2013-11-05; vol. 78 # 214 - Tuesday, November 5, 2013
    1. 78 FR 66326 - Hazardous Materials: Rail Petitions and Recommendations To Improve the Safety of Railroad Tank Car Transportation (RRR)
      GPO FDSys XML | Text
      DEPARTMENT OF TRANSPORTATION, Pipeline and Hazardous Materials Safety Administration
      Advance Notice of Proposed Rulemaking (ANPRM), extension of comment period.
      The comment period for the ANPRM closing on November 5, 2013 is extended until December 5, 2013. To the extent possible, PHMSA will consider late-filed comments during the next stage of the rulemaking process.
      49 CFR Parts 173, 174, 178, 179, and 180