46 C.F.R. § 108.445
Alarm and means of escape.
Cite as 46 C.F.R. § 108.445 (2026)
(a) Each CO
2
system that has a supply of more than 136 kilograms (300 pounds) of CO
2
, except a system that protects a tank, must have an alarm that sounds for at least 20 seconds before the CO
2
is released into the space.
(b) Each audible alarm for a CO
2
system must have the CO
2
supply for the system as its source of power and must be in a visible location in the spaces protected.