Which statement(s) is/are TRUE concerning radio equipment on towing vessels of 26 feet or more in length?

Correct Answer: Option D — All of the above.

Under FCC and USCG regulations, towing vessels over 26 feet require a valid ship radio station license, FCC-issued operator permits, and a continuous listening watch maintained on VHF channel 16 and the designated bridge-to-bridge navigational frequency.