CBP Form 29 Notice of Action: Proposed vs Taken and Your Options

A CBP Form 29 (Notice of Action) is the official document U.S. Customs and Border Protection uses to tell an importer or broker that it intends to change, or has already changed, the classification, valuation, or other treatment of an entry. When the box checked is Proposed Action, you have 20 days to respond before CBP acts. When the box reads Action Taken, the change is already in effect and your next move is a formal protest under 19 U.S.C. 1514.

What Is CBP Form 29?

Form 29 is a one-page notice that CBP port staff send to the importer of record or the licensed customs broker of record after reviewing an entry. It covers a wide range of potential changes, including:

• Tariff classification (HTS code) corrections that increase the duty rate
• Valuation adjustments that raise the dutiable value
• Country-of-origin determinations that trigger additional duties such as antidumping, countervailing, or Section 301 assessments
• Quantity or weight discrepancies affecting duties owed
• Marking violations requiring the goods to be re-marked

The form identifies the entry number, the specific issue CBP has found, and whether the agency is proposing to act or has already acted. That single checkbox drives everything that happens next.

Proposed Action: Your 20-Day Window

When a Form 29 is issued as a Proposed Action, CBP is signaling that it has not yet liquidated or reliquidated the entry with the new determination. You have 20 calendar days from the date of the notice to submit a written response disagreeing with CBP's position.

What a response should accomplish

A strong response does three things: it identifies the legal or factual basis for disagreeing with CBP, it attaches supporting documentation (supplier invoices, binding rulings, lab reports, country-of-origin records, cost breakdowns), and it explains clearly why the proposed change is not supported by the evidence. This is not the time to be vague. CBP officers reviewing responses are looking for concrete evidence, not general objections.

What happens if you do not respond

Silence is treated as acceptance. If no response arrives within 20 days, CBP will typically proceed with the proposed action, and the entry will be liquidated or reliquidated accordingly. At that point your only formal remedy is a protest, which carries its own deadline and limitations.

How this fits into the broader audit picture

A Form 29 often follows a Form 28 (Request for Information). If you missed the earlier Form 28 stage or your response was insufficient, the Form 29 is a second chance to prevent a rate advance. For background on that earlier step, see CBP Form 28 Response: How to Answer and What's at Stake. Form 29s also appear during focused assessments; the mechanics of that audit type are covered in CBP Focused Assessment: How the Audit Works and How to Prepare.

Action Taken: What It Means

When the Form 29 is issued as an Action Taken, CBP has already liquidated or reliquidated the entry at the higher rate, or has already made another adverse determination. There is no 20-day response period because the administrative decision is complete.

Rate advances

A rate advance means CBP has assessed a higher duty rate than was originally declared. The difference between what you paid at entry and what CBP now says you owe becomes a bill, typically issued as a demand for payment. Interest may accrue on unpaid amounts. Acting quickly is important because the protest clock is already running from the date of liquidation or reliquidation, not from the date you received the Form 29.

Marking and other actions

If the action taken involves country-of-origin marking, CBP may demand re-exportation, destruction, or re-marking of the goods, sometimes under bond. Failure to comply can lead to additional penalties separate from any duty increase.

Protesting Under 19 U.S.C. 1514

If CBP has taken action you believe is wrong, the primary legal remedy for most import decisions is a protest filed under 19 U.S.C. 1514. Key points:

• Deadline: Protests must generally be filed within 180 days of the date of liquidation or reliquidation of the entry. Missing this deadline forfeits the right to challenge the decision administratively.
• Who may file: The importer of record, the surety on the entry bond, and certain other parties with a direct legal interest may file a protest.
• What can be protested: Section 1514 covers final decisions on classification, valuation, origin, duties, fees, and related matters. Not every CBP determination is protestable, so verifying that the specific action falls within the statute's scope is an important early step.
• Further appeal: If CBP denies the protest, the importer may appeal to the Court of International Trade. This path involves litigation and typically requires legal counsel.

Protests versus prior disclosure

A protest challenges a CBP decision already made. It is different from a prior disclosure, which is a voluntary self-correction an importer files to reduce penalty exposure before CBP discovers an error. If the Form 29 arises from a pattern of errors rather than a single entry, consider whether a broader corrective action is warranted alongside or instead of a protest.

Common Mistakes to Avoid

• Treating Form 29 as informational only. Every Form 29 requires a deliberate decision: respond, accept, or plan a protest. Doing nothing by default is itself a choice with consequences.
• Missing deadlines. The 20-day proposed-action window and the 180-day protest deadline are hard cutoffs. Calendar them immediately on receipt.
• Submitting a response without documentation. A written argument alone rarely persuades CBP. Attach the documents that prove your position.
• Conflating the Form 29 date with the liquidation date. The protest clock runs from liquidation, which may differ from when you received the notice. Verify the liquidation date in ACE or on the CF 4333A bulletin notice.
• Ignoring systemic risk. If CBP flags one entry, similar entries may face the same scrutiny. A prospective review of related shipments can prevent a cascade of Form 29s.

What Importers Should Do

1. Date-stamp every Form 29 on arrival and immediately determine whether it is a proposed action or action taken, then calendar the applicable deadline.
2. Gather supporting documentation before responding. Classify the issue (HTS, valuation, origin, marking) and collect the specific records, rulings, or analyses that support your declared position.
3. Consult a licensed customs broker or trade attorney before the 20-day window closes or before filing a protest, especially when the duty exposure is significant or the issue recurs across multiple entries.
4. Review similar open entries for the same product and supplier to assess whether the same issue will generate additional Form 29s and whether a systemic correction is appropriate.

This article is general information, not legal advice.