That projects eligible for funding provided under this heading shall be either within the boundary of a port, or outside the boundary of a port, and directly related to port operations or to an intermodal connection to a port that will improve the safety, efficiency, or reliability of the movement of goods into, out of, around, or within a port, as well as the unloading and loading of cargo at a port: Provided further , That the Federal share of the costs for which an expenditure is made under this heading shall be up to 80 percent: Provided further , That for grants awarded under this heading, the minimum grant size shall be $1,000,000: Provided further , That for projects located in rural areas, the Secretary may increase the Federal share of costs above 80 percent: Provided further , That not to exceed 2 percent of the funds appropriated under this heading shall be available for necessary costs of grant administration. Administrative provisions—maritime administration 170. Notwithstanding any other provision of this Act, in addition to any existing authority, the Maritime Administration is authorized to furnish utilities and services and make necessary repairs in connection with any lease, contract, or occupancy involving Government property under control of the Maritime Administration: Provided , That payments received therefor shall be credited to the appropriation charged with the cost thereof and shall remain available until expended: Provided further , That rental payments under any such lease, contract, or occupancy for items other than such utilities, services, or repairs shall be covered into the Treasury as miscellaneous receipts. Pipeline and hazardous materials safety administration Operational expenses For necessary operational expenses of the Pipeline and Hazardous Materials Safety Administration, $24,215,000, of which $2,000,000 shall remain available until September 30, 2022. Hazardous materials safety For expenses necessary to discharge the hazardous materials safety functions of the Pipeline