by U.S. Customs and Border Protection under subclause (I)(aa) shall, in accordance with section 524 of the Tariff Act of 1930 ( 19 U.S.C. 1524 ), be deposited in the Customs User Fee Account and used to directly reimburse each appropriation for the amount paid out of that appropriation for the costs incurred in providing services to international mail facilities. Amounts deposited in accordance with the preceding sentence shall be available until expended for the provision of such services. (III) Payments retained by the Postal Service under subclause (I)(bb) shall be used to directly reimburse the Postal Service for the costs incurred in providing services in connection with the customs processing of Inbound EMS items. (iv) Beginning in fiscal year 2021, the Secretary, in consultation with the Postmaster General, may adjust, not more frequently than once each fiscal year, the amount described in clause (i)(I) to an amount commensurate with the costs of services provided in connection with the customs processing of Inbound EMS items, consistent with the obligations of the United States under international agreements. . (b) Conforming amendments Section 13031(a) of the Consolidated Omnibus Budget Reconciliation Act of 1985 ( 19 U.S.C. 58c(a) ) is amended— (1) in paragraph (6), by inserting (other than an item subject to a fee under subsection (b)(9)(D)) after customs officer