CSMS 67045953·Rate correction·December 9, 2025·View on csms.cbp.gov ↗

Correction – Implementation of Tariff-Related Elements of the United States-Korea Strategic Trade and Investment Deal

Plain-English explanation

CSMS 67045953 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin (rate correction), published on December 9, 2025. It carries the official CBP guidance brokers and importers must follow for the topic — "Correction – Implementation of Tariff-Related Elements of the United States-Korea Strategic Trade and Investment Deal". CSMS messages are the operational layer between Commerce determinations and at-the-border collections: when Commerce publishes a new rate, scope ruling, or instruction, CBP turns it into a CSMS that ACE/ACS systems and brokers act on.

Message body

Full text as published by U.S. Customs and Border Protection

Cargo Systems Messaging Service CSMS # 67045953 - Correction – Implementation of Tariff-Related Elements of the United States-Korea Strategic Trade and Investment Deal This guidance is being issued to provide a correction to a single reference in the Harmonized Tariff Schedule reporting instructions for Reciprocal tariffs applicable to products of South Korea, published on December 3, 2025, in CSMS # 66987366 - Guidance – Implementation of Tariff-Related Elements of the United States-Korea Strategic Trade and Investment Deal . The highlighted text below corrects the Harmonized Tariff Schedule number to be reported in this instance from 9903.02.79 to 9903.02.80 . Changes to Reciprocal Tariff The reciprocal tariff for products of South Korea, entered for consumption or withdrawn from warehouse for consumption on or after 12:01 a.m. eastern time November 14, 2025, is dependent on the Column 1 ad valorem (or ad valorem equivalent) duty rate applicable. For a product of South Korea with a Column 1 (General or Special, whichever is applicable) duty rate greater than or equal to 15 percent ad valorem, the additional Reciprocal tariff is zero (0). Use heading 9903.02.79 . For a product of South Korea with a Column 1 (General or Special, whichever is applicable) duty rate less than 15 percent ad valorem, the combined Column 1 and Reciprocal tariff rate is 15 percent ad valorem. Use heading 9903.02.80 . When submitting an entry summary to declare the 15 percent ad valorem duty on imports that are products of South Korea, file using the appropriate HTSUS listed above followed by the appropriate classification under Chapter 1 to 97, HTSUS. Report the 15 percent ad valorem duty on heading 9903.02.80 and report the entry summary line value and 0 duty on the Chapter 1-97 HTSUS classification. If you encounter any errors in filing an entry summary, contact your CBP client representative or the ACE Help Desk. Questions regarding this message should be directed to Trade Remedy at traderemedy@cbp.dhs.gov . Related Message Number(s): 66987366

Frequently asked questions

What is CSMS 67045953?

CSMS 67045953 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin titled "Correction – Implementation of Tariff-Related Elements of the United States-Korea Strategic Trade and Investment Deal". CSMS bulletins are the operational instructions CBP issues to brokers, importers, and ACE filers covering rate changes, system updates, scope guidance, and other day-to-day customs-operations changes.

When was CSMS 67045953 published?

CBP published CSMS 67045953 on December 9, 2025. The bulletin's instructions are typically operative as of the publication date unless the body specifies a different effective date.

Is the CBP CSMS the legally binding instruction?

Yes — for at-the-border filing and entry collection. CSMS messages translate Commerce's Federal Register determinations into operational CBP instructions that ACE/ACS systems and brokers execute. The Federal Register notice is the underlying legal authority; the CSMS is the operational implementation. Both should be read together when reconciling a rate or scope change.

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