Which of the following statements about boat registration numbers is true?

The requirement for boat registration numbers to be in block letters at least 3 inches high is crucial for visibility and legibility on the water. This regulation ensures that the numbers can easily be read from a distance by law enforcement and other boaters, which aids in the identification of vessels and enhances safety on waterways. The use of block letters is particularly important because they provide a standardized format that reduces confusion in identifying different boats, especially in various lighting conditions or weather scenarios.

Maintaining this height and style not only serves regulatory compliance but also promotes responsible boating by ensuring that vessels can be identified quickly in case of any incidents.