48 U.S.C. § 795 : US Code - Section 795: Government expenses payable out of revenues

Search 48 U.S.C. § 795 : US Code - Section 795: Government expenses payable out of revenues

All expenses that may be incurred on account of the government of
Puerto Rico for salaries of officials and the conduct of their
offices and departments, and all expenses and obligations
contracted for the internal improvement or development of the
island, not, however, including defenses, barracks, harbors,
lighthouses, buoys, and other works undertaken by the United
States, shall, except as otherwise specifically provided by the
Congress, be paid by the treasurer of Puerto Rico out of the
revenue in his custody.