What type of boat must have a capacity plate under federal law?

Under federal law, boats that are required to have a capacity plate include recreational vessels that are 20 feet or less in length. This applies to motorboats, sailboats, and certain types of personal watercraft. The capacity plate must indicate the maximum number of persons the boat can safely carry, as well as the maximum weight capacity. Compliance with this requirement helps ensure safety on the water by preventing overloading.