; and (ii) vessels of the operator from docking at ports of call in the United States. 7. Decarbonizing shipping and ports (a) Modernizing the Jones Act fleet (1) Definitions In this subsection: (A) Administrator The term Administrator means the Administrator of the Maritime Administration. (B) Jones Act vessel The term Jones Act vessel means a documented vessel (as defined in section 106 of title 46, United States Code) with a coastwise endorsement under section 12112 of that title. (C) Low-carbon fuel The term low-carbon fuel means a marine fuel the lifecycle carbon dioxide-equivalent emissions of which is at least 90 percent less than the lifecycle carbon dioxide-equivalent emissions of marine fuel oil. (D) Program The term program means the program established under paragraph (2). (E) Vessel of the United States The term vessel of the United States has the meaning given the term in section 116 of title 46, United States Code. (2) Establishment For fiscal year 2026 and each fiscal year thereafter, there are appropriated, out of any funds in the Treasury not otherwise appropriated, to the Maritime Administration an amount equal to 25 percent of the amounts collected pursuant to fees assessed under sections 5 and 6 during the previous calendar year to award grants, rebates, and low-interest loans, as determined appropriate by the Administrator, to eligible entities— (A) to replace existing Jones Act vessels that use marine fuel oil for propulsion power with vessels that are propelled using batteries or low-carbon fuels