This bill, titled the Golden Mussel Eradication and Control Act of 2026 , amends the Nonindigenous Aquatic Nuisance Prevention and Control Act of 1990 to establish a comprehensive demonstration program targeting the golden mussel. The program, led by the Task Force in partnership with various stakeholders, will focus on prevention, monitoring, control, eradication, education, and research related to this invasive species. Key activities include studying the mussel's biology and environmental impact, tracking its dispersal, and developing control methods for areas like public infrastructure, fish screens, and waterways, including hull inspections. The program will be implemented in the Sacramento-San Joaquin Delta and other infested U.S. waters, with the Task Force providing technical assistance and developing control guidelines, such as watercraft inspection stations. Additionally, the bill establishes a competitive grant program to fund projects that identify effective technologies for removing golden mussels from various locations or enhance understanding of their biology and containment. The Task Force is authorized to coordinate efforts with federal, state, and local entities and can delegate responsibilities for control and eradication. To support these initiatives, the bill authorizes an appropriation of $15,000,000 annually for fiscal years 2026 through 2030.