Creates a 30% investment tax credit for qualifying hydropower improvement property and launches a pilot loan program to help U.S.-flagged commercial fishing vessels convert to alternative fuels. Expands eligibility in multiple USDA and NOAA programs to explicitly include commercial fishing, wild-caught fish, and fish processing; funds new shore-side grants for rural seafood processing and working waterfront improvements; establishes a Maritime Workforce Grant Program; and creates regionally distributed Ocean Innovation Clusters and Centers. Most new programs are authorized for annual funding in fiscal years 2026–2030.