Tandom
About
Sign inCreate a free account →
Tandom

The building blocks of global trade.

hello@tandom.ai

Proud to partner with

Microsoft for Startups

NVIDIA

Inception Program

Products

  • Tariff Calculator
  • AD/CVD Intelligence
  • HTS Classification
  • Document Intelligence
  • Entry Filing
  • Excel Plugin
  • Email Plugin

Catalogs

  • AD/CVD Catalog
  • HTS Catalog
  • Pending Investigations Directory
  • Rate Change Feed

Developers

  • API
  • AI Agent Workflows
  • MCP Connector
  • API Reference
  • API Pricing
  • API Changelog

Resources

  • Resource Center
  • Guides
  • Roadmap

Company & Legal

  • About
  • Privacy Policy
  • Terms of Service
  • Acceptable Use

© 2026 Fintora Technologies, Inc. d/b/a Tandom. All rights reserved.

Plain-English explanationLinked AD/CVD casesMessage bodyFrequently asked questionsLearn more
  1. AD/CVD Catalog
  2. ›
  3. CSMS
  4. ›
  5. CSMS 8318205
CSMS 8318205·Trade policy·November 13, 2008·View on csms.cbp.gov ↗

NOTICE OF A PRELIMINARY DETERMINATION IN AN ANTIDUMPING DUTY INVESTIGATION OF FRONTSEATING SERVICE VALVES FROM CHINA (A-570-933)

Plain-English explanation

CSMS 8318205 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin (trade policy), published on November 13, 2008. It carries the official CBP guidance brokers and importers must follow for the topic — "NOTICE OF A PRELIMINARY DETERMINATION IN AN ANTIDUMPING DUTY INVESTIGATION OF FRONTSEATING SERVICE VALVES FROM CHINA (A-570-933)". It links to 1 AD/CVD case in Tandom's catalog. 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.

Linked AD/CVD cases(1)

Cases referenced or affected by this CSMS message

A-570-933

Message body

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

MESSAGE NO: 8318205 DATE: 11 13 2008 CATEGORY: ADA TYPE: PRE REFERENCE: REFERENCE DATE: CASES: A - 570 - 933 - - - - - - - - - - PERIOD COVERED: 10 22 2008 TO LIQ SUSPENSION DATE: TO: DIRECTORS OF FIELD OPERATIONS PORT DIRECTORS FROM: DIRECTOR, SPECIAL ENFORCEMENT RE: NOTICE OF A PRELIMINARY DETERMINATION IN AN ANTIDUMPING DUTY INVESTIGATION OF FRONTSEATING SERVICE VALVES FROM CHINA (A-570-933) 1. ON OCTOBER 22, 2008, 73 FR 62952, THE DEPARTMENT OF COMMERCE PUBLISHED IN THE FEDERAL REGISTER ITS PRELIMINARY DETERMINATION OF SALES AT LESS THAN FAIR VALUE AND THE POSTPONEMENT OF THE FINAL DETERMINATION IN THE ANTIDUMPING DUTY INVESTIGATION OF FRONTSEATING SERVICE VALVES FROM THE PEOPLES REPUBLIC OF CHINA. 2. THE MERCHANDISE COVERED BY THIS INVESTIGATION IS FRONTSEATING SERVICE VALVES, ASSEMBLED OR UNASSEMBLED, COMPLETE OR INCOMPLETE, AND CERTAIN PARTS THEREOF. FRONTSEATING SERVICE VALVES CONTAIN A SEALING SURFACE ON THE FRONT SIDE OF THE VALVE STEM THAT ALLOWS THE INDOOR UNIT OR OUTDOOR UNIT TO BE ISOLATED FROM THE REFRIGERANT STREAM WHEN THE AIR CONDITIONING OR REFRIGERATION UNIT IS BEING SERVICED. FRONTSEATING SERVICE VALVES RELY ON AN ELASTOMER SEAL WHEN THE STEM CAP IS REMOVED FOR SERVICING AND THE STEM CAP METAL TO METAL SEAT TO CREATE THIS SEAL TO THE ATMOSPHERE DURING NORMAL OPERATION./1/. FOR PURPOSES OF THE SCOPE, THE TERM UNASSEMBLED FRONTSEATING SERVICE VALVE MEANS A BRAZED SUBASSEMBLY REQUIRING ANY ONE OR MORE OF THE FOLLOWING PROCESSES: THE INSERTION OF A VALVE CORE PIN, THE INSERTION OF A VALVE STEM AND/OR O RING, THE APPLICATION OR INSTALLATION OF A STEM CAP, CHARGE PORT CAP OR TUBE DUST CAP. THE TERM COMPLETE FRONTSEATING SERVICE VALVE MEANS A PRODUCT SOLD READY FOR INSTALLATION INTO AN AIR CONDITIONING OR REFRIGERATION UNIT. THE TERM INCOMPLETE FRONTSEATING SERVICE VALVE MEANS A PRODUCT THAT WHEN SOLD IS IN MULTIPLE PIECES, SECTIONS, SUBASSEMBLIES OR COMPONENTS AND IS INCAPABLE OF BEING INSTALLED INTO AN AIR CONDITIONING OR REFRIGERATION UNIT AS A SINGLE, UNIFIED VALVE WITHOUT FURTHER ASSEMBLY. THE MAJOR PARTS OR COMPONENTS OF FRONTSEATING SERVICE VALVES INTENDED TO BE COVERED BY THE SCOPE UNDER THE TERM CERTAIN PARTS THEREOF ARE ANY BRAZED SUBASSEMBLY CONSISTING OF ANY TWO OR MORE OF THE FOLLOWING COMPONENTS: A VALVE BODY, FIELD CONNECTION TUBE, FACTORY CONNECTION TUBE OR VALVE CHARGE PORT. THE VALVE BODY IS A RECTANGULAR BLOCK, OR BRASS FORGING, MACHINED TO BE HOLLOW IN THE INTERIOR, WITH A GENERALLY SQUARE SHAPED SEAT (BOTTOM OF BODY). THE FIELD CONNECTION TUBE AND FACTORY CONNECTION TUBE CONSIST OF COPPER OR OTHER METALLIC TUBING, CUT TO LENGTH, SHAPED AND BRAZED TO THE VALVE BODY IN ORDER TO CREATE TWO PORTS, THE FACTORY CONNECTION TUBE AND THE FIELD CONNECTION TUBE, EACH ON OPPOSITE SIDES OF THE VALVE ASSEMBLY BODY. THE VALVE CHARGE PORT IS A SERVICE PORT VIA WHICH A HOSE CONNECTION CAN BE USED TO CHARGE OR EVACUATE THE REFRIGERANT MEDIUM OR TO MONITOR THE SYSTEM PRESSURE FOR DIAGNOSTIC PURPOSES. THE SCOPE INCLUDES FRONTSEATING SERVICE VALVES OF ANY SIZE, CONFIGURATION, MATERIAL COMPOSITION OR CONNECTION TYPE. FRONTSEATING SERVICE VALVES ARE CLASSIFIED UNDER SUBHEADING 8481.80.1095, AND ALSO HAVE BEEN CLASSIFIED UNDER SUBHEADING 8415.90.80.85 OF THE HARMONIZED TARIFF SCHEDULE OF THE UNITED STATES (HTSUS). IT IS POSSIBLE FOR FRONTSEATING SERVICE VALVES TO BE MANUFACTURED OUT OF PRIMARY MATERIALS OTHER THAN COPPER AND BRASS, IN WHICH CASE THEY WOULD BE CLASSIFIED UNDER HTSUS SUBHEADINGS 8481.80.3040, 8481.80.3090, OR 8481.80.5090. IN ADDITION, IF UNASSEMBLED OR INCOMPLETE FRONTSEATING SERVICE VALVES ARE IMPORTED, THE VARIOUS PARTS OR COMPONENTS WOULD BE CLASSIFIED UNDER HTSUS SUBHEADINGS 8481.90.1000, 8481.90.3000, OR 8481.90.5000. THE HTSUS NUMBERS ARE PROVIDED FOR CONVENIENCE AND CUSTOMS PURPOSES, BUT THE WRITTEN DESCRIPTION OF THE SCOPE IS DISPOSITIVE. /1/ THE FRONTSEATING SERVICE VALVE DIFFERS FROM A BACKSEATING SERVICE VALVE IN THAT A BACKSEATING SERVICE VALVE HAS TWO SEALING SURFACES ON THE VALVE STEM. THIS DIFFERENCE TYPICALLY INCORPORATES A VALVE STEM ON A BACKSEATING SERVICE VALVE TO BE MACHINED OF STEEL, WHERE A FRONTSEATING SERVICE VALVE HAS A BRASS STEM. THE BACKSEATING SERVICE VALVE DUAL STEM SEAL (ON THE BACK SIDE OF THE STEM), CREATES A METAL TO METAL SEAL WHEN THE VALVE IS IN THE OPEN POSITION, THUS, SEALING THE STEM FROM THE ATMOSPHERE. 3. FOR FURTHER REPORTING PURPOSES THIS CASE HAS BEEN ASSIGNED INVESTIGATION NUMBER A-570-933. 4. FOR IMPORTS OF FRONTSEATING SERVICE VALVES FROM THE PEOPLES REPUBLIC OF CHINA, U.S. CUSTOMS AND BORDER PROTECTION (CBP) SHALL SUSPEND LIQUIDATION OF SUCH SHIPMENTS ENTERED OR WITHDRAWN FROM WAREHOUSE, FOR CONSUMPTION ON OR AFTER 10/22/2008. EFFECTIVE 10/22/2008 CUSTOMS SHALL REQUIRE, FOR ENTRIES OF FRONTSEATING SERVICE VALVES FROM THE PEOPLES REPUBLIC OF CHINA FROM THE EXPORTER/PRODUCER COMBINATIONS LISTED BELOW, A CASH DEPOSIT OR THE POSTING OF A BOND EQUAL TO THE ANTIDUMPING DUTY MARGIN(S) SHOWN BELOW: EXPORTER: PRC-ENTITY CASE NUMBER: A-570-933-000 CASH DEPOSIT RATE: 55.62 EXPORTER: ZHEJIANG DUNAN HETIAN METAL CO., LTD. PRODUCER: ZHEJIANG DUNAN HETIAN METAL CO., LTD. CASE NUMBER: A-570-933-001 CASH DEPOSIT RATE: 26.72 EXPORTER: ZHEJIANG SANHUA CO., LTD. PRODUCER: ZHEJIANG SANHUA CO., LTD. CASE NUMBER: A-570-933-002 CASH DEPOSIT RATE: 15.41 6. FOR ALL OTHER ENTRIES OF SERVICE VALVES FROM THE PEOPLES REPUBLIC OF CHINA, THE FOLLOWING CASH DEPOSIT/BONDING INSTRUCTIONS APPLY: A. FOR ALL PRC EXPORTERS OF FRONTSEATING SERVICE VALVES, WHICH HAVE NOT RECEIVED THEIR OWN RATE, THE CASH-DEPOSIT OR BONDING RATE WILL BE THE PRC-WIDE RATE. B. FOR ALL NON-PRC EXPORTERS OF FRONTSEATING SERVICE VALVES WHICH HAVE NOT RECEIVED THEIR OWN RATE, THE CASH-DEPOSIT OR BONDING RATE WILL BE THE RATE APPLICABLE TO THE PRODUCER/EXPORTER COMBINATIONS THAT SUPPLIED THAT NON-PRC EXPORTER. 7. IN ACCORDANCE WITH T.D. 85-145, AT THE DISCRETION OF CBP, CUSTOMS OFFICERS MAY ACCEPT EITHER A SINGLE-ENTRY BASIC IMPORTATION AND ENTRY BOND OR A CONTINUOUS BASIC IMPORTATION AND ENTRY BOND ONLY IF THE AMOUNT OF THE ESTIMATED ANTIDUMPING OR COUNTERVAILING DUTY IS LESS THAN FIVE PERCENT AD VALOREM (OR THE EQUIVALENT). OTHERWISE, WHERE THE IMPORTER HAS THE OPTION TO POST A BOND FOR ESTIMATED ANTIDUMPING OR COUNTERVAILING DUTIES, CUSTOMS OFFICERS MUST REQUIRE A SINGLE-ENTRY BASIC IMPORTATION AND ENTRY BOND PURSUANT TO T.D. 85-145. YOU ARE INSTRUCTED TO ADHERE TO THE REQUIREMENTS OF T.D. 85-145 WITH RESPECT TO THESE BONDING REQUIREMENTS. 8. IF THERE ARE ANY QUESTIONS REGARDING THIS MATTER BY CBP OFFICERS, THE IMPORTING PUBLIC OR INTERESTED PARTIES, PLEASE CONTACT DAVINA HASHMI OR RON TRENTHAM AT OFFICE OF AD/CVD OPERATIONS, IMPORT ADMINISTRATION, INTERNATIONAL TRADE ADMINISTRATION, U.S. DEPARTMENT OF COMMERCE, AT (202) 482-0984 OR (202) 482-3577 RESPECTIVELY (GENERATED BY O8): RB. 9. THERE ARE NO RESTRICTIONS ON THE RELEASE OF THIS INFORMATION. DAVID M. GENOVESE

Frequently asked questions

What is CSMS 8318205?

CSMS 8318205 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin titled "NOTICE OF A PRELIMINARY DETERMINATION IN AN ANTIDUMPING DUTY INVESTIGATION OF FRONTSEATING SERVICE VALVES FROM CHINA (A-570-933)". 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 8318205 published?

CBP published CSMS 8318205 on November 13, 2008. The bulletin's instructions are typically operative as of the publication date unless the body specifies a different effective date.

Which AD/CVD cases does CSMS 8318205 affect?

CSMS 8318205 references 1 AD/CVD case (A-570-933). The links on this page take you to each linked order with its current scope, rates, and history.

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.

Learn more

Tandom guides relevant to CBP CSMS messages

Trade compliance APIs in broker workflows

Where trade compliance APIs fit in a broker's filing pipeline: HTS classification, duty calculation, AD/CVD scope match, and post-summary corrections.

Open resource →

Find the right manufacturer or exporter rate in an AD/CVD order

Cash deposit cascade, separate rates, all-others, and PRC-wide rates. Worked example on case A-570-910 (galvanized welded steel pipe from China) with three exporter-specific rates.

Open resource →

Determine if a product is in scope of an AD/CVD order

Scope text is authoritative; the HTS list is illustrative. Read scope, find past rulings, and file a 19 CFR 351.225 inquiry. Worked example on case A-570-106 (wooden cabinets from China).

Open resource →

Subscribe to and triage CBP CSMS messages

How to subscribe to CBP Cargo Systems Messaging Service and triage the messages that change broker filing behavior, without losing the ones that matter.

Open resource →

Real-time alerts when a CSMS message changes a duty rate

Set up alerts when a CBP CSMS message changes a duty rate on an HTS code you depend on. Built for brokers, forwarders, and importer compliance teams.

Open resource →

Check AD/CVD exposure by HTS code

A practical workflow for checking antidumping and countervailing duty exposure on a US entry. For brokers and ops teams who need the answer before filing.

Open resource →