# Regulus search export

- Query: `56 FR 66263`
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- Exported: 2026-08-25T21:40:00.638Z

## 1. OXIDIZER placard.

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

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

### 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
- Document slug: `49-cfr-172-550`
- Related records: 4