CSMS 55133647·Operational·February 16, 2023·View on csms.cbp.gov ↗

Update Harmonized System Updates (HSU) 2303

Plain-English explanation

CSMS 55133647 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin (operational), published on February 16, 2023. It carries the official CBP guidance brokers and importers must follow for the topic — "*Update* Harmonized System Updates (HSU) 2303". 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

CSMS # 55133647 - *Update* Harmonized System Updates (HSU) 2303 U.S. Customs and Border Protection sent this bulletin at 02/16/2023 02:01 PM EST Cargo Systems Messaging Service CSMS # 55133647 - *Update* Harmonized System Updates (HSU) 2303 Please disregard previous CSMS with HSU 2206. HSU 2206 was inadvertently listed. Harmonized System Update (HSU) 2303 was created on February 15, 2023 and contains 97 ABI records and 24 harmonized tariff records. HSU 2303 contains adjustments required by the verification of the 2023 Harmonized Tariff Schedule (HTS) as well as an update for HTS # 9903.45.25. Bound ranges for HTS # 9903.45.25 were modified. The range was adjusted to 8501.71.0000 to 8541.43.0010. For additional information on the bound ranges for HTS # 9903.45.25 please refer to Proclamation 10339 (Federal Register 87 FR 7357) . Questions or concerns should be directed to Entry Summary, Accounts & Revenue Division (ESAR) at esar@cbp.dhs.gov . Update your subscriptions, modify your password or e-mail address, or stop subscriptions at any time on your Subscriber Preferences Page . You will need to use your e-mail address to log in. If you have questions or problems with the subscription service, please contact subscriberhelp.govdelivery.com . This service is provided to you at no charge by U.S. Customs and Border Protection . Privacy Policy | GovDelivery is providing this information on behalf of U.S. Department of Homeland Security, and may not use the information for any other purposes. Powered by Privacy Policy | Cookie Statement | Help

Frequently asked questions

What is CSMS 55133647?

CSMS 55133647 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin titled "*Update* Harmonized System Updates (HSU) 2303". 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 55133647 published?

CBP published CSMS 55133647 on February 16, 2023. 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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