# Unacceptable hazardous materials shipments.

**Citation:** 49 CFR 176.3  
**Type / status:** regulation / current  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2026-08-18  
**Published:** Not stated

(a) A carrier may not transport by vessel any shipment of a hazardous material that is not prepared for transportation in accordance with parts 172 and 173 of this subchapter, or as authorized by subpart C of part 171 of this subchapter.

(b) A carrier may not transport by vessel any explosive or ex

## Document text

(a) A carrier may not transport by vessel any shipment of a hazardous material that is not prepared for transportation in accordance with parts 172 and 173 of this subchapter, or as authorized by subpart C of part 171 of this subchapter.

(b) A carrier may not transport by vessel any explosive or explosive composition described in § 173.54 of this subchapter.

[Amdt. 176-1, 41 FR 16110, Apr. 15, 1976, as amended by Amdt. 176-30, 55 FR 52688, Dec. 21, 1990; 74 FR 2268, Jan. 14, 2009]

## Provenance

- Official: Yes
- Source: <https://www.ecfr.gov/on/2026-08-18/title-49/section-176.3>
- Source ID: `ecfr`
- SHA-256: `5436d42759db749d8f6abdaa48c6fd13c652a53e1a60b4a9f85f84ea3ccc6aad`
- Retrieved: 2026-08-20T05:46:14.489Z
- Exported: 2026-08-24T06:05:53.006Z
- Document slug: `49-cfr-176-3`

### Source metadata

```json
{
  "cfrTitle": 49,
  "part": "176",
  "section": "176.3",
  "subpart": "Subpart A—General",
  "corpusVersion": "2026-08-18",
  "jurisdiction": "US"
}
```