46 CFR § 131.815
Carbon dioxide and clean agent alarms
April 15, 2021
Each carbon dioxide or clean agent fire extinguishing alarm must be conspicuously marked: “WHEN ALARM SOUNDS VACATE AT ONCE. CARBON DIOXIDE OR CLEAN AGENT BEING RELEASED.”
[USCG-2006-24797, 77 FR 33884, June 7, 2012]