Code of Federal Regulations Title 46. Shipping § 46.95.15–30 Alarms

(1) The space is normally accessible to persons onboard while the vessel is being navigated;  and

(2) Is not a paint locker or similar small space.

(1) Sound automatically and audibly for at least 20 seconds before carbon dioxide is discharged into the space;

(2) Be conspicuously and centrally located and be marked as required by 46 CFR 97.37–9;  and

(3) Use stored gas power provided by the extinguishing agent, gas from pilot cylinders, or gas from cylinders specifically provided to power the alarms.