Describe the display of registration numbers.

• A. 2 inches tall, colors must contrast with the boat and be visible from 100 feet
• B. 1 inch tall, any color, visible from 50 feet
• C. 4 inches tall, numbers in any font, visible from 200 feet
• D. 3 inches tall, colors of the numbers contrast from the boat, may have dashes or spaces, visible from 100 feet

Answer: (D)

Registration numbers on a boat must be easily readable from a distance, so the size, contrast, and spacing are all important. The numbers should be 3 inches tall, and the color must contrast with the boat’s hull so the digits stand out clearly. They should be displayed in plain block characters, and it’s acceptable to separate the letters and numbers with a dash or spaces to improve readability. Being visible from 100 feet is the required readability distance. The other options miss one or more of these requirements: too small a height, an inappropriate font, or an incorrect visibility distance.