{"operation":"document","citation":"49 CFR 172.530","title":"OXYGEN placard.","source_type":"regulation","agency":"Pipeline and Hazardous Materials Safety Administration","status":"current","official":true,"published_on":null,"effective_on":"2026-08-18","summary":"(a) Except for size and color, the OXYGEN placard must be as follows:\n\n(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.\n\n[Amdt. 172-123, 56 FR 66262, Dec. 20, 1991]","machine_formats":{"json":"https://regulus.evalyn.ai/document/49-cfr-172-530.json","markdown":"https://regulus.evalyn.ai/document/49-cfr-172-530.md"},"app_url":"https://regulus.evalyn.ai/document/49-cfr-172-530","source_url":"https://www.ecfr.gov/on/2026-08-18/title-49/section-172.530","body":"(a) Except for size and color, the OXYGEN placard must be as follows:\n\n(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.\n\n[Amdt. 172-123, 56 FR 66262, Dec. 20, 1991]","truncated":false,"body_characters":298}