49 CFR 179.220-4 - Insulation.

Regulations last checked for updates: Apr 30, 2025

Title 49 - Transportation last revised: Mar 20, 2025

§ 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