; and notwithstanding any other provision of law, none of the funds appropriated by this Act shall be available to compensate any employee of U.S. Customs and Border Protection for overtime, from whatever source, in an amount that exceeds such limitation, except in individual cases determined by the Secretary of Homeland Security, or the designee of the Secretary, to be necessary for national security purposes, to prevent excessive costs, or in cases of immigration emergencies. (b) None of the funds made available by this Act for the following accounts shall be available to compensate any employee for overtime in an annual amount in excess of $45,000: (1) U.S. Immigration and Customs Enforcement—Operations and Support , except that the Secretary of Homeland Security, or the designee of the Secretary, may waive such amount as necessary for national security purposes and in cases of immigration emergencies. (2) United States Secret Service—Operations and Support , except that the Secretary of Homeland Security, or the designee of the Secretary, may waive such amount as necessary for national security purposes. 202. Funding made available under the heading U.S. Customs and Border Protection—Operations and Support and U.S. Customs and Border Protection—Procurement, Construction, and Improvements shall be available for customs expenses when necessary to maintain operations and prevent adverse personnel actions in Puerto Rico in addition to funding provided by 48 U.S.C. 740 . 203. As authorized by section 601(b) of the United States-Colombia Trade Promotion Agreement Implementation Act ( Public Law 112–42 ), fees collected from passengers arriving from Canada, Mexico, or an adjacent island pursuant to section 13031(a)(5) of the Consolidated Omnibus Budget Reconciliation Act of 1985 ( 19 U.S.C. 58c(a)(5) ) shall be available until expended. 204. For an additional amount for U.S. Customs and Border Protection—Operations and Support , $31,000,000, to remain available until expended, to be reduced by amounts collected and