StacksVerified U.S. regulatory reference

46 CFR §108.631

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)Each cabinet or space that contains a valve, control, or manifold of a fixed fire extinguishing system must be marked in conspicuous red letters at least 2 inches high: “[CARBON DIOXIDE/CLEAN AGENT/FOAM/WATER SPRAY—as appropriate] FIRE APPARATUS.”.
  2. (b)Instructions for the operation of a fixed fire extinguishing system must be posted next to a fire apparatus described in paragraph (a) of this section.