Cargo Systems Messaging Service

CSMS # 70261629 - UPDATED GUIDANCE: Section 301 China Conforming Amendment

This message updates CSMS #69990649 to provide guidance regarding an additional conforming amendment to Section 301 China product exclusions.

The Automated Commercial Environment (ACE) functionality for the acceptance of the conforming amendment will be effective as of 6 pm on October 23, 2026.

BACKGROUND
On September 2, 2026 and October 7, 2026, the Office of the U.S. Trade Representative (USTR) published Federal Register Notices 91 FR 56538 and 91 FR 64211 making conforming amendments to five Section 301 China product exclusions. These amendments are to conform with changes to ten-digit statistical reporting categories of the Harmonized Tariff Schedule of the United States (HTSUS) effective July 1, 2026.

The amendments found in the Annex to the two Federal Register notices amend U.S. notes 20(vvv)(i)(4), 20(vvv)(i)(5), 20(vvv)(i)(6), 20(vvv)(i)(20) and 20(vvv)(iv)(4) to subchapter III of chapter 99 of the HTSUS, as originally published in the Annex at 89 FR 46948 (May 30, 2024), as amended.

GUIDANCE
This guidance provides instructions for importers, brokers, and filers on submitting entries to U.S. Customs and Border Protection (CBP) on imports subject to five exclusions from the Section 301 China measures, effective July 1, 2026.

• U.S. note 20(vvv)(i)(4) (9903.88.69) to subchapter III of chapter 99 of the HTSUS has been modified by inserting “through June 30, 2026; described in statistical reporting numbers 8413.91.9039, 8413.91.9046, 8413.91.9059 or 8413.91.9099 effective July 1, 2026” after “January 1, 2020.”
  
  
• U.S. note 20(vvv)(i)(5) (9903.88.69) to subchapter III of chapter 99 of the HTSUS has been modified by inserting “through June 30, 2026; described in statistical reporting numbers 8413.91.9039, 8413.91.9046, 8413.91.9059 or 8413.91.9099 effective July 1, 2026” after “January 1, 2020.”
  
  
• U.S. note 20(vvv)(i)(6) (9903.88.69) to subchapter III of chapter 99 of the HTSUS has been modified by inserting “through June 30, 2026; described in statistical reporting numbers 8413.91.9039, 8413.91.9046, 8413.91.9059 or 8413.91.9099 effective July 1, 2026” after “January 1, 2020.”
  
  
• Note: The goods covered by notes (i)(4), (5) and (6), through June 30, 2026, were classified under HTSUS classifications 8413.91.9065, 8413.91.9085 or 8413.91.9096.
  
  
• U.S. note 20(vvv)(iv)(4) (9903.88.69) to subchapter III of chapter 99 of the HTSUS has been modified by inserting “prior to July 1, 2026; described in statistical reporting numbers 3926.90.9915 or 3926.90.9920 effective July 1, 2026” after “3926.90.9910”.
  
  Note: The goods covered by note (iv)(4), through June 30, 2026, were classified under HTSUS classification 3926.90.9910.

ADDITIONAL TECHNICAL AMENDMENT

• U.S. note 20(vvv)(i)(20) (9903.88.69) to subchapter III of chapter 99 of the HTSUS has been modified by inserting “through June 30, 2026; described in statistical reporting number 8479.90.9591, effective July 1, 2026” after “January 27, 2022.”
  
  Note: The goods covered by notes (i)(20), through June 30, 2026, were classified under HTSUS classifications 8479.90.9596.

Importers shall not submit the corresponding Chapter 99 HTSUS number for the Section 301 China duties when HTSUS 9903.88.69 is submitted.

ADDITIONAL INFORMATION

To request removal of Section 301 duties paid on previous imports of products granted duty exclusions by the USTR, importers may file a Post Summary Correction (PSC) if within the PSC filing timeframe. If the entry is beyond the PSC filing timeframe, importers may protest the liquidation if within the protest filing timeframe.

Questions from the importing community concerning ACE entry rejections involving product exclusions should be referred to their CBP Client Representative.

Questions related to Section 301 entry-filing requirements should be sent to the Trade Remedy Branch via email to traderemedy@cbp.dhs.gov.