Indefinite Suspension of the De Minimis Exemption for Mail Shipments and New Postal Informal Entry Process

Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Department of Homeland Security U.S. Customs and Border Protection 19 CFR Part 145 [USCBP-2026-0761; CBP Dec. 26-13] RIN 1685-AA45 AGENCY: U.S. Customs and Border Protection, Department of Homeland Security. ACTION: Interim final rule; request for comments. SUMMARY: This document amends the U.S. Customs and Border Protection (CBP) regulations to implement an indefinite suspension of the de minimis administrative exemption for imports valued at $800 or less arriving through the international postal network. This document also establishes a new postal informal entry process for certain merchandise entering the United States through the mail environment. DATES: Effective date: This interim final rule is effective on July 24, 2026, except for amendatory instruction 4 ( 19 CFR 145.31 ), which is effective on June 24, 2026. Compliance date: The compliance date for 19 CFR 145.12(a)(2)(v) and (vi) is on October 22, 2026. Comments due date: Comments on the rule must be received on or before July 24, 2026. ADDRESSES: You may submit comments, identified by docket number, through the Federal eRulemaking Portal: http://www.regulations.gov . Follow the instructions for submitting comments via docket number USCBP-2026-0761. Instructions: All submissions received must include the agency name and docket number for this rulemaking. All comments received may be posted without change to http://www.regulations.gov , including any personal information provided. For detailed instructions on submitt…