Regulations last checked for updates: Nov 22, 2024

Title 49 - Transportation last revised: Nov 18, 2024
All TitlesTitle 49Chapter IPart 179Subpart D - Subpart D—Specifications for Non-Pressure Tank Car Tanks (Classes DOT-111AW, 115AW, and 117AW)
View all text of Subpart D [§ 179.200 - § 179.221-1]
§ 179.221-1 - Individual specification requirements.

In addition to § 179.220, the individual specification requirements are as follows:

DOT specification Insulation Bursting
pressure
(psig) 		Minimum
plate
thickness (inches) 		Test pressure (psig) Bottom
outlet 		Bottom
washout 		Reference
(179.221-***)
115A60ALWYes240 3/1660Optional.Optional
115A60W1Yes240 1/860OptionalOptional1
115A60W6Yes240 1/860OptionalOptional1
[Amdt. 170-52, 61 FR 28681, June 5, 1996, as amended at 62 FR 51561, Oct. 1, 1997; 66 FR 45390, Aug. 28, 2001]
authority: 49 U.S.C. 5101-5128; 49 CFR 1.81 and 1.97
source: 29 FR 18995, Dec. 29, 1964, unless otherwise noted. Redesignated at 32 FR 5606, Apr. 5, 1967.
cite as: 49 CFR 179.221-1
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