46 C.F.R. § 196.37-13
Fire extinguishing system controls.
Cite as 46 C.F.R. § 196.37-13 (2026)
The control cabinets or spaces containing valves, manifolds, or controls for the various fire extinguishing systems must be marked in conspicuous red letters at least 2 inches high: “[CARBON DIOXIDE/CLEAN AGENT/FOAM—as appropriate] FIRE APPARATUS.”.
[USCG-2006-24797, 77 FR 33894, June 7, 2012]