The purpose of this legislation is to give states the authority to charge fees related to boating as a requirement for issuing vessel numbers. This means that when someone wants to register their boat, they may need to pay certain state fees alongside the standard fees for vessel numbering. Key provisions of the legislation include the ability for states to require payments for various boating-related fees. These fees can cover costs associated with search and rescue operations, boating safety measures, and efforts to combat aquatic invasive species.