This bill amends federal law to clarify that states can require boaters to pay state fees as a condition of obtaining a vessel number. The fees can cover boating-related expenses such as search and rescue operations, boating safety programs, and efforts to control aquatic invasive species. States would be allowed to collect these fees at the same time they collect other vessel numbering fees, streamlining the registration process. The bill specifies that states can only use the collected fees for activities directly related to recreational boating improvements, boater safety, boater access, waterway use, and aquatic invasive species management. This legislation essentially removes any ambiguity about states' authority to bundle boating-related fees with standard vessel registration fees.