Most states require that you register your boat if it has a motor or will be used with a motor. Also, several states require you to register the boat if it exceeds a certain length. To determine the registration requirements, please check with your state licensing bureau. This varies from state to state, but is often the Secretary of State, Department of Natural Resources or the Department of Motor Vehicles. Please make sure if your state does require you to register your boat, that you complete the Manufactures Statement of Origin (MSO) in entirety along with bringing a proof of purchase.