The letters for boat registration numbers must be in what format?

The correct format for boat registration numbers is block letters. This specific style is essential because it ensures legibility and clarity, which are critical for identification purposes. Using block letters makes it easy for authorities and other boaters to read and recognize the registration numbers from a distance. Clear visibility is vital in ensuring compliance with regulations and maintaining safety on the water, as it allows for quick identification of vessels in case of emergencies or inspections.

Other formats such as italicized or cursive letters could be difficult to read, leading to potential misunderstandings or safety concerns. The uniformity and straightforwardness of block letters contribute to the effective communication of vital information regarding the boat's registration status.