When the machinery spaces on a tank vessel are protected by a fixed foam extinguishing system, what additional protection is required by Coast Guard Regulations (46 CFR) outside of the machinery space entrance?

Correct Answer: Option A — Two fire hydrants with hose, nozzle and applicator

Title 46 CFR mandates additional tactical firefighting assets outside machinery spaces protected by fixed foam systems to ensure immediate manual boundary cooling and secondary attack capability. Two approved fire hydrants complete with hoses, combination nozzles, and low-velocity applicators fulfill this vital safety requirement.