StacksVerified U.S. regulatory reference

49 CFR §172.530

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)Except for size and color, the OXYGEN placard must be as follows:
  2. (b)In addition to complying with § 172.519 of this subpart, the background color on the OXYGEN placard must be yellow. The symbol, text, class number and inner border must be black.