46 CFR § 35.40-10 - Steam, foam, carbon dioxide, or clean agent fire smothering apparatus—TB/ALL.

Each steam, foam, carbon dioxide, or clean agent fire fighting apparatus must be marked “[CARBON DIOXIDE/STEAM/FOAM/CLEAN AGENT—as appropriate] FIRE APPARATUS” in red letters at least 2 inches high. Branch pipe valves leading to the several compartments must be distinctly marked to indicate the compartments or parts of the vessel to which they lead.

[USCG–2006–24797, 77 FR 33874, June 7, 2012]