46 C.F.R. § 131.820
Branch lines of fire-extinguishing system.
Cite as 46 C.F.R. § 131.820 (2026)
The valves of each branch line in the fire extinguishing system must be plainly and permanently marked, indicating the spaces served.
46 C.F.R. § 131.820
Cite as 46 C.F.R. § 131.820 (2026)