This bill, titled the "Golden Mussel Eradication and Control Act of 2025," amends the Nonindigenous Aquatic Nuisance Prevention and Control Act of 1990 to establish a comprehensive demonstration program targeting the golden mussel. The program, to be developed by the Task Force in partnership with various entities, will focus on prevention, monitoring, control, eradication, education, and research . Key activities include studying the mussel's biology and environmental tolerances, tracking its dispersal to establish an early warning system, and developing control methods for areas like derelict vessels, public infrastructure, and waterways. The demonstration program will be implemented in the Sacramento-San Joaquin Delta and other waters determined to be infested or likely to become infested by the golden mussel. It also mandates the development of guidelines to control the spread and eradicate the mussel, including through watercraft inspection stations. Furthermore, the bill establishes a competitive grant program to fund projects identifying effective technologies for golden mussel removal and enhancing the understanding of its biology and containment science. The Task Force is authorized to provide guidance and delegate responsibilities for control and eradication methods to other federal agencies, states, and local entities, with an authorization of $15,000,000 annually for fiscal years 2026 through 2030.