Recent U.S. notices changed Canadian product duties and entry procedures, while a court certified an IEEPA-duty refund class.

• Canada: An October 23 proclamation changed the products of Canada covered by the additional 50% Section 338 duty, effective for consumption entries or warehouse withdrawals from 12:01 a.m. Eastern time October 30. CBP says 22 classifications were removed and 100 added under 9903.03.14; check the annexes and classification before filing. The proclamation says the duty applies in addition to Section 232 duties. Proclamation and annexes · CSMS 70314289

• China exclusions: CBP updated filing guidance for five Section 301 product exclusions, reflecting statistical-code changes effective July 1; ACE acceptance began October 23 at 6 p.m. For qualifying entries using 9903.88.69, CBP says not to submit the corresponding Section 301 duty code. Corrections or protests may be available within applicable filing periods. CSMS 70261629

• Canada and Mexico metals: Commerce's U.S.-content guidance for qualifying USMCA products took effect October 14 at 12:01 a.m. Eastern time. FR 2026-20938

• International mail: CBP extended the compliance date for specified formal-entry requirements to January 20, 2027; eligible shipments may instead use the Entry Type 13 test. This extension is not a restoration of de minimis treatment. FR 2026-21600. A separate proposed low-value entry rule is open for comments through December 7, 2026, docket USCBP-2026-0298; it is not a final rule. Proposal

• IEEPA refunds: On October 8, the Court of International Trade certified a class in Freestyle World, court no. 26-01088, slip op. 26-123, covering certain importers that paid the challenged duties February 1, 2025–February 19, 2026, excluding those that separately sued for recovery. Certification is not itself a final class-wide refund order. Opinion

This baseline is not a complete tariff schedule or live clearance advice. Verify applicability and filing steps with a qualified customs adviser.