46 C.F.R. § 108.403a Fire extinguishing systems: Non-vital services.
Title 46 - Shipping
Each enclosed ventilating system for electric motors or generators not used for vital services must have an access into the system for firefighting or be protected by a fixed fire protection system.
Title 46: Shipping
PART 108—DESIGN AND EQUIPMENT
Subpart D—Fire Extinguishing Systems
§ 108.403a Fire extinguishing systems: Non-vital services.

