StacksVerified U.S. regulatory reference

49 CFR §172.417

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov
  1. (a)Except for size and color, the FLAMMABLE GAS label must be as follows:
  2. (b)In addition to complying with § 172.407, the background color on the FLAMMABLE GAS label must be red.