CSMS Weekly Digest: Oct 24 - Oct 30, 2026
The biggest item this week is the October 23, 2026 Presidential Proclamation that further modifies the scope of Canadian products subject to Section 338 additional duties tied to motor vehicles; see CSMS #70314289 for the filing guidance. CBP also corrected erroneous ACE statements generated October 28-29, and filers should check for duplicate or bogus statements before authorizing. Plan around the ACE Production maintenance window overnight October 31 to November 1.
Action Required(2)
Ignore any recently received statements for July 29 or July 30; ACE will reject attempts to authorize them. Entry summaries submitted October 23, 27, or 28 with a statement print date on or before October 30 may show up on two statements, so see CSMS #70329550 for how to resolve these, including rescheduling to a different statement date. Brokers handling Canadian goods should review CSMS #70314289 for the revised Section 338 scope.
ACE Statement Issue
On October 28th and October 29th, certain trade participants may have received statements in error. CBP has addressed this issue in ACE. The following guidance is being sent to assist the affected tra...
Further Modifying Section 338 Additional Duties on Certain Goods of Canada
The purpose of this message is to provide guidance on the modifications to the Section 338 Canada duties pursuant to the October 23, 2026, Presidential Proclamation entitled “Further Modifying the Sco...
Tariff(1)
An October 23, 2026 Proclamation further modifies which products of Canada are subject to the Section 338 additional duties imposed over Canadian motor vehicle trade practices. This follows Proclamation 11056 of August 18, 2026, which briefly suspended those duties on alcoholic beverages, dairy, and motor vehicles. Consult CSMS #70314289 for the affected products, effective dates, and filing instructions.
System Update(2)
On October 29, 2026, the ACE Portal Importer sub-account moved the ACH Refund Authorization tab under a new Financial Transactions header tab, with unchanged functionality, and removed the Get Info/Refresh button (details in CSMS #70297853). Separately, CBP has fixed the October 28-29 erroneous statement issue described in CSMS #70329550.
ACE Statement Issue
On October 28th and October 29th, certain trade participants may have received statements in error. CBP has addressed this issue in ACE. The following guidance is being sent to assist the affected tra...
ACE Portal Update: New Financial Transactions Tab Coming Soon
On October 29, 2026, U.S. Customs and Border Protection (CBP) will make the following updates to the Automated Commercial Environment Secure Data Portal’s (ACE Portal) Importer sub-account: CBP w...
System Maintenance(2)
ACE Production will be down for standard invasive maintenance from 10:00 p.m. ET Saturday, October 31 to 4:00 a.m. ET Sunday, November 1, 2026, so plan filings accordingly. ACE Certification also had a maintenance window on October 28, 2026, from 5:00 to 8:00 p.m. ET.
ACE Production Standard Invasive Maintenance Window from 10:00 p.m. ET on Saturday, October 31, 2026, to 4:00 a.m. ET Sunday, November 1, 2026
There will be ACE Production standard invasive maintenance window from 10:00 p.m. ET on Saturday, October 31, 2026, to 4:00 a.m. ET on Sunday, November 1, 2026.
ACE Certification Standard Invasive Maintenance Window on October 28, 2026, from 5:00 p.m. to 8:00 p.m. ET
There will be an ACE certification standard invasive maintenance window on October 28, 2026, from 5:00 p.m. to 8:00 p.m. ET.