Question 558Navigation General

The correct answer is B) thirty (30) days' notice. Under defense plans, the operation of electronic aids may be temporarily suspended with thirty (30) days' notice. This is in accordance with the Coast Guard regulations, which state that the Coast Guard can suspend the operation of electronic aids to navigation during times of national emergency or defense, but they must provide at least 30 days' notice before doing so. The other answer choices are incorrect because they do not align with the established regulation regarding the notice period for suspending electronic aids.