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Regulatory Bulletin

Latest From CBP

Hand-picked recaps of recent Cargo Systems Messaging Service (CSMS) notices from U.S. Customs and Border Protection, checked over by our brokerage team.

Last reviewed Sep 17, 2026 · For the full, up-to-the-minute list, visit the official CBP CSMS page .

EnforcementCSMS #69927769· Sep 17, 2026

Reminder: Register for CBP's September Trade Enforcement Webinars

CBP is holding free quarterly webinars on reporting suspected trade violations and filing EAPA allegations through the Trade Violations Reporting tool. TVR is Tuesday, September 22 at 1:00 p.m. ET; EAPA is Thursday, September 24 at 1:00 p.m. ET. Advance registration is required at go.dhs.gov/4i4.

ACECSMS #69941677· Sep 17, 2026

CORRECTION: Update to ACE CATAIR Entry Summary Error Dictionary (V53)

CBP corrected CSMS #69915227: error F884 (EXEMPT HTS NOT ALLOWED FOR SECTION 338) applies to HTS 9903.03.15, not 9903.03.05. Using that exemption without an appropriate dutiable Chapter 99 HTS on the line is rejected. The V53 dictionary was deployed to CERT and PROD on August 26, 2026.

TradeCSMS #69711865· Aug 31, 2026

Copper Additional Smelt and Cast Country Detail Error Code Update

Effective September 14, 2026, ACE rejects entry summaries that omit copper primary country of smelt and country of cast, returning fatal error F794. The requirement covers HTSUS 8544.42.10, 8544.42.20, 8544.42.90, and 8544.49.10 from all origins except the U.S.; unknown countries may be reported as OTH.

EnforcementCSMS #69657207· Aug 26, 2026

Termination of the “Flying Trucks” Process and Truck Manifest Compliance

CBP rescinded the Flying Trucks process, which let truck arrivals use air-manifest data. Carriers must file truck eManifests that match the actual border-crossing mode under 19 CFR 123.92. Express carriers have a 90-day transition; the process ends November 24, 2026.

ACECSMS #69635410· Aug 24, 2026

New ACE Error F883: PSC Not Allowed to Modify IEEPA HTS

ACE now blocks Post Summary Corrections on FTZ entry type 06 if the IEEPA HTS is changed in any way, returning F883. The CATAIR Error Dictionary V52 update deployed to CERT and PROD on August 21, 2026.

TradeCSMS #69606660· Aug 21, 2026

GUIDANCE: Section 338 Additional Duties on Certain Goods of Canada

For Canadian goods entered on or after August 22, 2026, filers must use HTSUS 9903.03.12–9903.03.16. Headings 9903.03.12–9903.03.14 carry a 50% additional ad valorem duty; 9903.03.15 and 9903.03.16 are 0%. A three-day suspension had delayed the original August 19 start. Questions go to TradeRemedy@cbp.dhs.gov.

TradeCSMS #69567203· Aug 18, 2026

Correction: Drawback Error Dictionary Validations for FD07

CBP reversed an August 12 change that had blocked drawback on certain Section 301 HTS numbers. HTSUS 9903.05.01 (Section 301 Brazil) and 9903.05.20–9903.05.84 (Section 301 forced-labor duties) are drawback-eligible again, and the Drawback Error Dictionary has been updated in production.

ACECSMS #69289734· Jul 20, 2026

Entry Type 13 Test for U.S. Mail Processing Deploys to ACE Production September 22

CBP will deploy Entry Type 13 (ET13) to ACE production on September 22, 2026, for USPS international mail under the June 24 Federal Register test of the electronic informal mail entry process. CERT opened July 24. The change affects cargo release, entry summary, and manifest EDI; see CBP's Trade Information Notice for filer guides.

MaintenanceCSMS #69031391· Jun 23, 2026

Delay in Issuance of Final Daily Statements for June 23, 2026

CBP reported a processing error affecting Treasury's Collections Information Repository file, causing delays in issuing final daily statements for June 23, 2026. Updates will follow once processing completes; inquiries should go to the Entry Summary, Accounts & Revenue Division.

EnforcementCSMS #69019627· Jun 22, 2026

Forced Labor Portal Overview Webinar

CBP announces a webinar covering the Forced Labor Portal, intended to walk trade partners through its features and how it supports compliance with forced labor import restrictions.

EnforcementCSMS #68902435· Jun 17, 2026

Final Reminder: Register for U.S. Customs and Border Protection's June Trade Enforcement Webinars

CBP is offering two free quarterly webinars in June: a Trade Violations Reporting (TVR) session on June 23 and an Enforce and Protect Act (EAPA) session on June 25, aimed at helping the public report suspected trade violations. Registration is required but free.

TradeCSMS #68961636· Jun 16, 2026

Information: Quota Bulletin 26-225 2026 Argentina Beef Tranche 3

An additional 80,000 metric tons of Argentine beef may be imported under specific tariff codes through December 2026. The quota period runs July 1 through September 30, 2026, with entries opening July 1 and subject to proration if demand exceeds available quantity.

EnforcementCSMS #68963141· Jun 16, 2026

Withhold Release Order (WRO) on Copper and Copper Products Manufactured in Serbia, by Serbia Zijin Copper D.O.O.

CBP issued a detention order against copper products from Serbia Zijin Copper D.O.O. based on evidence of forced labor indicators in production, including wage withholding and document retention. Importers may destroy, export, or provide evidence the merchandise was produced without forced labor.

ACECSMS #68966469· Jun 16, 2026

ACE Portal: New Tools and Automation for Account Management

CBP introduced automated tools for the ACE Portal, including automatic Trade Account Owner (TAO) reactivation, a new TAO lookup service, and new web forms for applying for and managing ACE Portal accounts and sub-accounts.

ACECSMS #68952537· Jun 15, 2026

ACE Portal Webinar: How to Set Up and Manage an ACE Portal Account

CBP's Office of Trade hosted a free webinar covering ACE Portal account setup, new webforms, Trade Account Owner functionality, and recent portal improvements, with a recording made available afterward on the Trade Outreach Webinars page.

TradeCSMS #68878482· Jun 8, 2026

FDA Added Additional Code for LPCO Issuer - Government Geographic Code Qualifier in PG13

FDA introduced a new qualifier code ("EU" for European Union) for the LPCO Issuer Government Geographic Code Qualifier in PG13, available for Stand-Alone Prior Notice and Food Commodity Combined Entry submissions. The change will be reflected in the next FDA ACE Supplemental Guide.