Stop the Spread of Invasive Mussels Act of 2024

This bill authorizes federal agencies (like the Bureau of Reclamation and National Park Service) to inspect and decontaminate watercraft entering federal waters in 18 western states (Reclamation States) to prevent invasive mussels from spreading. It creates a grant program to fund states, tribes, and local partners for setting up inspection stations, with federal funds covering up to 75% of costs. The program requires coordination with states, tribes, and the Aquatic Nuisance Species Task Force, and mandates minimizing disruptions to boaters. It directly affects recreational boaters using reservoirs in Reclamation States and the agencies managing those waters.