46 CFR 97.37-13 - Fire extinguishing system controls.
The control cabinets or spaces containing valves or manifolds for the various fire extinguishing systems must be distinctly marked in conspicuous red letters at least 2 inches high: “[STEAM/CARBON DIOXIDE/CLEAN AGENT/FOAM/WATER SPRAY—as appropriate] FIRE APPARATUS.”.
[USCG-2006-24797, 77 FR 33881, Jun. 7, 2012]
Title 46 published on 2014-10-01
no entries appear in the Federal Register after this date.