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]
§ 179.220-4 - Insulation.

The annular space between the inner container and the outer shell must contain an approved insulation material.

[Amdt. 179-9, 36 FR 21340, Nov. 6, 1971]
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 179.220-4
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