StacksVerified U.S. regulatory reference

46 CFR §78.47-9

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov
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.”.