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 explanationMessage bodyFrequently asked questionsLearn more
  1. AD/CVD Catalog
  2. ›
  3. CSMS
  4. ›
  5. CSMS 39826606
CSMS 39826606·Operational·September 16, 2019·View on csms.cbp.gov ↗

Drawback: Limited Modification Application Approvals for Rulings Under 1313(b)

Plain-English explanation

CSMS 39826606 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin (operational), published on September 16, 2019. It carries the official CBP guidance brokers and importers must follow for the topic — "Drawback: Limited Modification Application Approvals for Rulings Under 1313(b)". 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 #39826606 - Drawback: Limited Modification Application Approvals for Rulings Under 1313(b) U.S. Customs and Border Protection sent this bulletin at 09/16/2019 04:00 PM EDT   Cargo Systems Messaging Service CSMS #39826606 - Drawback: Limited Modification Application Approvals for Rulings Under 1313(b) CBP will begin approving limited modification applications on file for rulings issued under 19USC1313(b). Applications must include the following information: - Revised parallel columns and a bill of materials (BOM) or formula, both of which must be annotated with the applicable Harmonized Tariff Schedule of the United States (HTSUS) subheading numbers.  If there are multiple BOM’s or formulas with identical HTSUS numbers within a ruling, claimants may submit one BOM with the limited modification request as a representation of the many BOMs covered by that ruling, and the filer may request that the submission cover all BOMs authorized by that ruling. If a ruling covers multiple discrete BOM’s/Formulas (using different imported/substituted merchandise with different HTSUS codes) for various finished articles, then a representation of each discrete BOM/Formula would need to be provided for review. The processing Drawback Office shall have discretion as to whether a BOM/Formula is representative or discrete. - A certification to confirm that all TFTEA Drawback claims made under the subject manufacturing ruling will be in conformity with all of the applicable statutory and future regulatory requirements. For rulings based upon T.D. 81-300 for Component Parts, claimants must make a declarative statement as to whether or not substitution is based upon individual part numbers in addition to the 8-digit HTSUS subheading number. If this information was not included in the original application, drawback offices will request this information from the claimant via email and provide a 30-day response time. It’s noted that the approval of a limited modification application does not represent a decision or determination by CBP with respect to the proper tariff classification of the imported merchandise, substituted merchandise, or to the exported articles, under the Harmonized Tariff Schedule of the United States.  Accordingly, any HTSUS provisions referenced in a limited modification application and modified drawback manufacturing ruling issued under 19 CFR Part 190 are informational only. Once a ruling has been approved, relevant claims on file with CBP must be perfected by the claimant. CBP will return the claims to trade control upon request by the claimant. For questions regarding this issue please contact OTDRAWBACK@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 39826606?

CSMS 39826606 is a U.S. Customs and Border Protection (CBP) Cargo Systems Messaging Service bulletin titled "Drawback: Limited Modification Application Approvals for Rulings Under 1313(b)". 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 39826606 published?

CBP published CSMS 39826606 on September 16, 2019. 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.

Learn more

Tandom guides relevant to CBP CSMS messages

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 →

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 →

Bulk-classify SKU descriptions with the Tandom HTS Classifier API

Run thousands of product descriptions through HTS classification, score the confidence, and triage borderline rows. Public search endpoint plus the closed-beta three-layer Classifier.

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 →