StacksVerified U.S. regulatory reference

46 CFR §78.47-17

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Each control cabinet or space containing valves or manifolds for a fire extinguishing system must be distinctly marked in conspicuous red letters at least 2 inches high: “[CARBON DIOXIDE/STEAM/FOAM/WATER SPRAY/MANUAL SPRINKLING/AUTOMATIC SPRINKLING/CLEAN AGENT—as appropriate] FIRE SYSTEM.”.