# Regulus search export

- Query: `45 FR 34701`
- Source type: All
- Part: All
- Source: All
- Status: All
- Jurisdiction: All
- Collection: All
- Incident class: All
- Sort: relevance
- Date from: Any
- Date to: Any
- As of: Current corpus
- Results: 1
- Exported: 2026-08-25T05:08:10.496Z

## 1. Identification number display on placards.

**Citation:** 49 CFR 172.503  
**Type / status:** regulation / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective / published:** 2026-08-18 / Not stated

\[Amdt. 172-58, 45 FR 34701, May 22, 1980\]

### Provenance

- Official: Yes
- Source: <https://www.ecfr.gov/on/2026-08-18/title-49/section-172.503>
- Source ID: `ecfr`
- SHA-256: `a8411686ae68b2e23a5eaba48fbc63435a230c1cc844c278c93752a8fcf3602e`
- Retrieved: 2026-08-20T05:45:59.130Z
- Document slug: `49-cfr-172-503`
- Related records: 2