49 CFR § 172.415
NON-FLAMMABLE GAS label
November 18, 2020
(a) Except for size and color, the NON-FLAMMABLE GAS label must be as follows:
(b) In addition to complying with §172.407, the background color on the NON-FLAMMABLE GAS label must be green.
[Amdt. 172-123, 56 FR 66256, Dec. 20, 1991]