Question 1562Navigation General

The correct answer is D) GPS receiver. According to the US Coast Guard regulations, a GPS receiver is not a required piece of navigational safety equipment on towing vessels over 12 meters in length, provided that the vessel remains within the navigable waters of the US. The regulations only mandate the presence of a searchlight (A), charts or maps of the areas to be transited (B), and VHF-FM radio(s) (C) on such vessels, but do not require a GPS receiver. The other options, A, B, and C, are incorrect because they are required navigational safety equipment for towing vessels over 12 meters in length operating within the navigable waters of the US.