47 C.F.R. § 80.925 Electric light.
Title 47 - Telecommunication
(a) If the vessel is navigated at night an electric light or dial lights which clearly illuminate the operating controls must be installed to provide illumination of the operating controls at the principal operating position. (b) The electric light must be energized from the main power supply and, if a reserve power supply for the radiotelephone installation is required, from the reserve power supply.
Title 47: Telecommunication
PART 80—STATIONS IN THE MARITIME SERVICES
Subpart S—Compulsory Radiotelephone Installations for Small Passenger Boats
§ 80.925 Electric light.
