CFR > Title 49 - Transportation > SUBTITLE B—Other Regulations Relating to Transportation > CHAPTER I—PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (Parts 105–199) > SUBCHAPTER C—HAZARDOUS MATERIALS REGULATIONS (Parts 171–181) > PART 179—SPECIFICATIONS FOR TANK CARS > SUBPART D—Specifications for Non-Pressure Tank Car Tanks (Classes DOT-111AW and 115AW) (§179.200 to §179.221-1) > 179.221-1—Individual specification requirements.

179.221-1—Individual specification requirements.

In addition to § 179.220, the individual specification requirements are as follows:
DOT specification Insulation Burstingpressure(psig) Minimumplatethickness (inches) Test pressure (psig) Bottomoutlet Bottomwashout Reference(179.221-***)
115A60ALW Yes 240 3/16 60 Optional. Optional
115A60W1 Yes 240 1/8 60 Optional Optional 1
115A60W6 Yes 240 1/8 60 Optional Optional 1
[Amdt. 170-52, 61 FR 28681, June 5, 1996, as amended at 62 FR 51561, Oct. 1, 1997; 66 FR 45390, Aug. 28, 2001]