§179.220-4. Insulation.
49 C.F.R. § 179.220-4
The annular space between the inner container and the outer shell must contain an approved insulation material.
Notes, amendments, and revision history
Amendments
[Amdt. 179-9, 36 FR 21340, Nov. 6, 1971]
Authority
Authority: 49 U.S.C. 5101-5128; 49 CFR 1.81 and 1.97.
Source
Source: 29 FR 18995, Dec. 29, 1964, unless otherwise noted. Redesignated at 32 FR 5606, Apr. 5, 1967.
Amendments
[Amdt. 179-9, 36 FR 21340, Nov. 6, 1971]