# Fueling (bunkering).

- **operation:** document
- **citation:** 49 CFR 176.154
- **title:** Fueling (bunkering).
- **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) Class 1 (explosive) materials, except those in compatibility group S, may not be loaded or unloaded when fueling (bunkering) is in progress except with the prior authorization of the COTP, and under conditions prescribed by that officer.

(b) Vessels containing Class 1 (explosive) materials may 
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- **markdown:** https://regulus.evalyn.ai/document/49-cfr-176-154.md
- **app url:** https://regulus.evalyn.ai/document/49-cfr-176-154
- **source url:** https://www.ecfr.gov/on/2026-08-18/title-49/section-176.154
**body:**

(a) Class 1 (explosive) materials, except those in compatibility group S, may not be loaded or unloaded when fueling (bunkering) is in progress except with the prior authorization of the COTP, and under conditions prescribed by that officer.

(b) Vessels containing Class 1 (explosive) materials may not be fueled (bunkered) with the hatches open unless authorized by the COTP.
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- **body characters:** 377