; table of contents This subtitle may be cited as the Synthetics Trafficking and Overdose Prevention Act of 2018 or STOP Act of 2018 . 8002. Customs fees (a) In general Section 13031(b)(9) of the Consolidated Omnibus Budget Reconciliation Act of 1985 ( 19 U.S.C. 58c(b)(9) ) is amended by adding at the end the following: (D) (i) With respect to the processing of items that are sent to the United States through the international postal network by Inbound Express Mail service or Inbound EMS (as that service is described in the mail classification schedule referred to in section 3631 of title 39, United States Code), the following payments are required: (I) $1 per Inbound EMS item. (II) If an Inbound EMS item is formally entered, the fee provided for under subsection (a)(9), if applicable. (ii) Notwithstanding section 451 of the Tariff Act of 1930 ( 19 U.S.C. 1451 ), the payments required by clause (i), as allocated pursuant to clause (iii)(I), shall be the only payments required for reimbursement of U.S. Customs and Border Protection for customs services provided in connection with the processing of an Inbound EMS item. (iii) (I) The payments required by clause (i)(I) shall be allocated as follows: (aa) 50 percent of the amount of the payments shall be paid on a quarterly basis by the United States Postal Service to the Commissioner of U.S. Customs and Border Protection in accordance with regulations prescribed by the Secretary of the Treasury to reimburse U.S. Customs and Border Protection for customs services provided in connection with the processing of Inbound EMS items. (bb) 50 percent of the amount of the payments shall be retained by the Postal Service to reimburse the Postal Service for services provided in connection with the customs processing of Inbound EMS items. (II) Payments received 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