USCG Exam PracticeCompass variation and deviation; T-V-M-D-C
A towing vessel operator is planning a voyage that will take the vessel seaward of the U.S. territorial sea baseline. During the voyage, the master decides to deviate substantially from the planned route. Under 33 CFR §164.80, what must occur before the vessel departs from the planned route?
- A. The master must notify the nearest Vessel Traffic Service and obtain approval before deviating.
- ✓ The master or mate must plan the new route before deviating from the planned route.Correct
- C. The deviation may proceed immediately provided it is logged; a new plan may be completed within 24 hours.
- D. The master must return to the nearest port and file a revised voyage plan with the Captain of the Port.
Why B is correct
33 CFR §164.80(c)(3) states that if a decision is made to deviate substantially from the planned route, the master or mate must plan the new route before deviating. There is no requirement in the supplied text to obtain VTS approval or return to port; the obligation is to complete the new plan prior to the deviation.
Cited:33 CFR §164.80