46 CFR §131.950
- (a)Each vessel must have readily available to the person on watch in the pilothouse a placard (Form CG-811) containing instructions—
- (1)For the use of lifesaving signals set forth in Regulation 16, Chapter V, of SOLAS 74/83; and
- (2)In helicopter recovery.
- (b)The signals must be employed by vessels or persons in distress when communicating with lifesaving stations and maritime rescue units.