During Transit Passage, submarines may remain submerged and aircraft may be launched during transit.

Master the Navigation, Seamanship, and Shiphandling (NSS) – Officer of the Deck (OOD) Phase 2 Exam with engaging flashcards and multiple choice questions, complete with hints and explanations. Prepare comprehensively for your test!

Transit passage gives the freedom of navigation and overflight through straits used for international navigation. Submarines are allowed to pass while submerged, and aircraft are allowed to operate in the airspace over the strait during transit, as long as safety and non-disruption of other vessels are maintained. This means a submarine can move through the strait underwater without having to surface, and aircraft can overfly or be launched in the strait’s airspace without needing special permission beyond normal safety and international rules. The other options contradict this established freedom: requiring surface transit, prohibiting aircraft launches, or declaring submarines barred from passing are not consistent with the transit passage regime.