# OXIDIZER placard.

**Citation:** 49 CFR 172.550  
**Type / status:** regulation / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2026-08-18  
**Published:** Not stated

(a) Except for size and color, the OXIDIZER placard must be as follows:

(b) In addition to complying with § 172.519, the background color on the OXIDIZER placard must be yellow. The symbol, text, division number and inner border must be black.

[Amdt. 172-123, 56 FR 66263, Dec. 20, 1991]

## Document text

(a) Except for size and color, the OXIDIZER placard must be as follows:

(b) In addition to complying with § 172.519, the background color on the OXIDIZER placard must be yellow. The symbol, text, division number and inner border must be black.

[Amdt. 172-123, 56 FR 66263, Dec. 20, 1991]

## Provenance

- Official: Yes
- Source: <https://www.ecfr.gov/on/2026-08-18/title-49/section-172.550>
- Source ID: `ecfr`
- SHA-256: `21e8e061ed8bf84125666927c3210cd8380f26224d6dc0d7c4656739b76812d1`
- Retrieved: 2026-08-20T05:45:59.130Z
- Exported: 2026-08-23T11:24:49.580Z
- Document slug: `49-cfr-172-550`

### Source metadata

```json
{
  "cfrTitle": 49,
  "part": "172",
  "section": "172.550",
  "subpart": "Subpart F—Placarding",
  "corpusVersion": "2026-08-18",
  "jurisdiction": "US"
}
```