StacksVerified U.S. regulatory reference

49 CFR §176.180

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Whenever Class 1 (explosive) materials are on board a vessel in port, there must be sufficient crew on board to maintain a proper watch and to operate the propulsion and firefighting equipment in case of an emergency.