# \[Reserved\]

**Citation:** 49 CFR 173.55  
**Type / status:** regulation / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2026-08-18  
**Published:** Not stated



## Document text



## Provenance

- Official: Yes
- Source: <https://www.ecfr.gov/on/2026-08-18/title-49/section-173.55>
- Source ID: `ecfr`
- SHA-256: `e294e04eddaab72b0f4ffd1169fd591cdf47b170d9c5a69e77327c135d8e8c75`
- Retrieved: 2026-08-20T05:46:04.092Z
- Exported: 2026-08-23T04:32:28.287Z
- Document slug: `49-cfr-173-55`

### Source metadata

```json
{
  "cfrTitle": 49,
  "part": "173",
  "section": "173.55",
  "subpart": "Subpart C—Definitions, Classification and Packaging for Class 1",
  "corpusVersion": "2026-08-18",
  "jurisdiction": "US"
}
```