You are bound from port A governed by the summer load line mark to port B also governed by the summer mark. The great circle track will take you into a zone governed by the winter mark. Which statement is TRUE?

Correct Answer: Option D — You must be at the winter mark when you enter the winter zone and cannot exceed the summer mark upon departing port A.

Vessel masters must ensure compliance with 46 CFR load line regulations by anticipating environmental zones. A vessel transiting into a winter zone must not exceed the maximum allowable draft for that zone upon entry, regardless of departure draft limits.