StacksVerified U.S. regulatory reference

46 CFR §97.37-13

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