# OXYGEN placard.

- **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:** Not available
- **effective on:** 2026-08-18
- **summary:** (a) Except for size and color, the OXYGEN placard must be as follows:

(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.

[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:

(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.

[Amdt. 172-123, 56 FR 66262, Dec. 20, 1991]
- **truncated:** false
- **body characters:** 298