46 C.F.R. § 113.27-1 Engineers' assistance-needed alarm.
Title 46 - Shipping
Each self-propelled ocean, Great Lakes, or coastwise vessel must have a manually-operated engineers' assistance-needed alarm that is: (a) Operated from: (1) The engine control room, if the vessel has an engine control room; or (2) The maneuvering platform, if the vessel has no engine control room; (b) Audible in the engineers' accommodation spaces; and (c) Powered from the general alarm power source.
Title 46: Shipping
PART 113—COMMUNICATION AND ALARM SYSTEMS AND EQUIPMENT
Subpart 113.27—Engineers' Assistance-Needed Alarm
§ 113.27-1 Engineers' assistance-needed alarm.

