Question 219Navigation General

70% to pass

The IALA Buoyage Systems do NOT apply to _______________.

A lighthouses and lightships
B natural dangers and other obstructions, such as wrecks
C areas in which navigation may be subject to regulation
D the sides and centerlines of navigable channels
AI Explanation

The correct answer is A) lighthouses and lightships. The IALA Buoyage Systems do not apply to lighthouses and lightships because these are separate and distinct aids to navigation that are not part of the buoyage system. Lighthouses and lightships are fixed, visual aids that provide different navigational functions compared to the buoys and beacons that are part of the IALA Buoyage Systems. The other answer choices, B, C, and D, do fall under the jurisdiction of the IALA Buoyage Systems, which provide a standardized system for marking navigational hazards, regulated areas, and channel boundaries.

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Official Resources
USCG Navigation Rules (COLREGS) 33 CFR Navigation Rules USCG National Maritime Center
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