USCG Exam PracticePlotting with variation and deviation (T-V-M-D-C)
A towing vessel's voyage plan is required by 33 CFR §164.80 to consider which of the following when any part of the intended voyage is seaward of the baseline of the U.S. territorial sea?
- ✓ Forward and after drafts of the barge and under-keel and vertical clearances for all bridges, ports, and berthing areasCorrect
- B. The ARPA tracking accuracy for all targets within 8 nautical miles
- C. Ultrasonic thickness gaugings of the tow's hull plating taken within the prior 12 months
- D. Verification that all crewmembers have passed a chemical test for dangerous drugs within 30 days
Why A is correct
33 CFR §164.80(c)(3)(iv) explicitly requires the voyage plan to address forward and after drafts of the barge or barges and under-keel and vertical clearances (air-gaps) for all bridges, ports, and berthing areas. The other options reference requirements from different regulatory sections not applicable to voyage planning content.
Cited:33 CFR §164.80