# Unacceptable hazardous materials shipments.

- **operation:** document
- **citation:** 49 CFR 176.3
- **title:** Unacceptable hazardous materials shipments.
- **source type:** regulation
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** current
- **official:** true
- **published on:** Not available
- **effective on:** 2026-08-18
- **summary:** (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
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- **app url:** https://regulus.evalyn.ai/document/49-cfr-176-3
- **source url:** https://www.ecfr.gov/on/2026-08-18/title-49/section-176.3
**body:**

(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]
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- **body characters:** 487