CBP Customs Notice, Response, and Redelivery Process

CBP Customs Notice, the U.S. Customs and Border Protection Customs Notice, Response, and Redelivery Process represents the administrative federal oversight of the commercial flow of international trade. Its framework is for requesting import information, issuing notice of customs action, and directing corrective steps such as marking, redelivery, export, or destruction of merchandise.

The process is driven by CBP Form 28, CBP Form 29, and CBP Form 4647, which are commonly managed through the ACE receive-and-respond. It serves as the post-entry mechanism through which Customs and Border Protection verifies entry accuracy, tests compliance, and enforces release and admissibility requirements.

This process is grounded in CBP’s authority under the Tariff Act of 1930 and the Customs Modernization Act. Importers must exercise reasonable care in reporting classification, value, origin, and admissibility, while Customs and Border Protection may request records, issue action notices, or require corrective steps when entries appear noncompliant.

The rules also vary by agency and product type. FDA matters may lead to redelivery demands, EPA matters may require technical certifications, and textile or agricultural imports often involve added origin or tracing requirements. Similar post-release systems exist in other jurisdictions, but they follow different laws and procedures.

At its core, the process usually unfolds through three form-based stages:

• CBP Form 28 requests information or records to verify the correctness of an entry.
• CBP Form 29 notifies the importer of a proposed or completed action affecting the entry, including possible changes to classification, value, or duty treatment.
• CBP Form 4647 requires marking, redelivery, export, or destruction when merchandise is not legally compliant after release.

Because this system is deadline-sensitive and enforcement-oriented, selecting the correct response path from the outset is critical. The first step is identifying the governing issue, the relevant agency framework, and the specific form that controls the response.

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What the CBP Notice, Response, and Redelivery Process Can Require or Accomplish

The CBP notice, response, and redelivery process is both an information-gathering and enforcement mechanism. It allows U.S. Customs and Border Protection to examine the accuracy of an entry, notify the importer of a proposed or completed action, require corrective measures, and enforce compliance after release. This is the system that Customs and Border Protection uses to determine whether goods were properly declared, properly marked, and lawfully admitted.

The process serves several functions. Customs and Border Protection may require records and explanations supporting classification, valuation, origin, and admissibility. It may also issue a notice that it intends to change the legal or financial treatment of an entry, including duty consequences. Where goods are noncompliant, CBP may go further and require physical corrective action, including marking, redelivery, export, or destruction.

Core Function	Practical Effect
Information gathering	Requires records, explanations, and supporting data
Notice of action	Alerts the importer to a proposed or completed CBP decision
Corrective enforcement	Requires marking, redelivery, export, or destruction
Bond enforcement	Supports liquidated damages for noncompliance
Record building	Creates the administrative record for protest or review

The process can also significantly increase legal and financial exposure. Form 29 may notify the importer of a proposed rate, value, or classification change that increases duties. Form 4647 may impose a strict compliance obligation that, if ignored, leads to liquidated damages under the import bond. Even a Form 28, while often framed as a request for information, can become the starting point for broader enforcement concerns if the response is incomplete, inconsistent, or unsupported.

The process also affects the finality of the entry. Once CBP issues a notice, liquidation may be delayed while the agency completes its review, preserving its ability to assess additional duties or take further action. Just as importantly, the notice-and-response cycle helps shape the administrative record that will govern any later protest, petition, or court challenge.

In practice, the mechanism can do all of the following:

• compel documentation and explanations
• change the duty outcome of an entry
• require post-release corrective action
• trigger bond liability for noncompliance
• preserve or narrow later review options

For that reason, each CBP notice should be treated as more than a routine administrative communication. It is a procedural event that can affect admissibility, duty liability, enforcement exposure, and the importer’s ability to challenge the agency’s position later.

Common Stages of the CBP Customs Notice, Response, and Redelivery Process

The CBP Customs Notice, Response, and Redelivery Process follows a post-entry sequence, but the governing requirements depend on the form issued, the goods involved, and the agency concerns tied to the entry. In most cases, the process moves from notice identification, to record gathering, to agency review, and then to compliance, protest, or bond enforcement. Because these events are often handled through ACE, timing and submission method matter.

Step 1 — Identify the Notice and the Governing Issue

The first step is to determine what CBP issued and what it requires. A Form 28 requests information or supporting records. A Form 29 gives notice of a proposed or completed action affecting the entry. A Form 4647 requires marking, redelivery, export, or destruction of merchandise after release. The importer should confirm the entry number, deadline, issuing office, and the issue under review, such as classification, valuation, origin, marking, or admissibility.

This early review shapes the response. Misreading the form can lead to the wrong approach. A document request calls for an evidentiary response, while a redelivery notice may require action to recover goods and return them to CBP custody.

Step 2 — Confirm Receipt and Organize the Response Team

Once the notice is identified, the importer should make sure the right parties have received it and are working from the same timeline. That may include the importer of record, customs broker, compliance personnel, trade counsel, warehouse contacts, and any staff needed to locate or control the merchandise. ACE settings and courtesy copy arrangements should also be checked so that no deadline is missed because of an internal communication failure.

A missed notice can lead to enforcement. Customs and Border Protection generally will not excuse non-response because the notice was overlooked. If no timely action is taken, the agency may move forward with its proposed determination or escalate to redelivery or bond liability.

Step 3 — Gather Records and Build a Form-Specific Submission

The next stage is to assemble the factual and legal record needed to answer the notice. For a Form 28, that may include invoices, product specifications, supplier declarations, cost data, laboratory reports, royalty agreements, or origin records. For a Form 29, the response should address the proposed action and explain why CBP’s position should be withdrawn, changed, or limited. For a Form 4647, the importer may need both supporting documents and a compliance plan covering remarking, redelivery, export, or destruction.

Each response should be organized around the request or allegation in the notice. Incomplete records, inconsistent explanations, or unsupported claims can expand the inquiry and weaken a later protest, petition, or mitigation effort. In agency matters, the submission may also need to satisfy FDA, EPA, USDA, or other partner-agency requirements.

Step 4 — Submit Through the Correct CBP Channel and Preserve Proof of Filing

After the record is assembled, the response must be submitted through the proper Customs and Border Protection channel, usually through the ACE forms workflow with supporting documents uploaded through the proper electronic system. The importer should keep copies of the response, all attachments, and confirmation that the submission was sent and received. These materials may later matter if the importer needs to challenge CBP’s action or respond to a claim for liquidated damages.

This stage requires accuracy. Even a supported position may fail if exhibits are missing, the wrong submission path is used, or the importer cannot show what was filed and when. Proof of submission is part of the record.

Step 5 — CBP Review, Compliance Action, and Final Determination

Once Customs and Border Protection reviews the submission, it may withdraw the notice, change its position, or proceed with the proposed action. In a Form 29 matter, Customs and Border Protection may finalize a classification, valuation, origin, or admissibility decision that changes duties or affects liquidation. In a Form 4647 matter, CBP will expect proof that the goods were remarked, redelivered, exported, or destroyed within the required period. In some cases, another agency must verify compliance before the matter is resolved.

Delays at this stage can have direct consequences. Missing a Form 29 response deadline may leave CBP’s position unanswered before final action is taken. Missing a Form 4647 deadline can trigger liquidated damages under the bond, even where recovering the goods is difficult.

Step 6 — Protest, Petition, or Other Post-Decision Remedy

After CBP takes final action, the importer must determine the next remedy. If the matter involves a protestable customs decision, the importer may need to proceed through the protest process within the statutory deadline. If the issue is a bond claim or liquidated damages assessment, a petition for relief may be the proper path. In some cases, a correction strategy or disclosure issues may also arise.

This final stage is procedural. Using the wrong remedy or missing the deadline for the right one can eliminate further administrative or judicial review. At that point, the case is no longer just a response to a Customs and Border Protection notice. It becomes a question of preserving the relief still available under customs law.

The Documents and Forms That Drive the CBP Customs Notice, Response, and Redelivery Process

The CBP notice, response, and redelivery process is easiest to follow when viewed through the forms that control it. Each form serves a different function, but all three work from the same entry record and the same compliance timeline. The entry documents establish the importer’s original declarations. Form 28 tests those declarations. Form 29 states CBP’s proposed or completed action. Form 4647 requires correction or return of goods when release conditions were not satisfied.

CBP Form 28 — Request for Information

Form 28 is the document CBP uses to request records or explanations about an entry. It is often the first sign that Customs and Border Protection is reviewing classification, valuation, origin, marking, or admissibility. The form identifies the entry under review and states what supporting material CBP wants to see.

A proper Form 28 response depends on the underlying entry file. That usually means invoices, packing lists, product specifications, supplier declarations, payment records, origin support, and any other records tied to the issue raised. If the question involves customs value, the response may also need royalty agreements, assistance information, or proof of payment. If the question involves origin, the importer may need production records, bills of materials, or manufacturing details.

The response should be organized in the same order as the questions on the form. Each answer should match the supporting exhibit and avoid creating conflicts with the original entry documents. If a Form 28 response contains inconsistent facts, Customs and Border Protection may rely on those inconsistencies in a later Form 29 decision.

CBP Form 29 — Notice of Action

Form 29 is the notice CBP uses to tell the importer that it proposes to take, or has taken, an action affecting the entry. This may involve a change in classification, value, duty treatment, origin, or another customs determination. In many cases, Form 29 follows CBP’s review of the entry record or a prior Form 28 response.

The key function of Form 29 is to move the matter from inquiry to determination. At this stage, the importer must focus on the issue identified by Customs and Border Protection and respond with a clear explanation supported by the record. A useful response does not repeat the general background. It addresses the proposed action directly and shows why the documents support a different result.

Readability and structure matter here. The importer should state the issue, answer it directly, and attach only the records needed to support that position. A weak or disorganized response can make CBP’s position harder to challenge later.

CBP Form 4647 — Notice to Mark and/or Notice to Redeliver

Form 4647 is the form CBP uses when goods have already been released but must still be corrected, returned, exported, or destroyed. It is the most operational form in the process because it usually requires physical action, not just a written response.

If the issue is marking, the importer may need to provide certificates, declarations, photographs, or inspection proof showing that the goods were properly marked. If the issue is redelivery, export, or destruction, the importer must keep records showing what happened to the merchandise and when. That may include transportation records, warehouse receipts, export documentation, destruction records, or proof that the goods were returned to Customs and Border Protection custody.

Form 4647 matters turn on proof. It is not enough to say the goods were corrected or removed. The importer must be able to show it. If that proof is missing, Customs and Border Protection may treat the demand as unmet and pursue liquidated damages under the bond.

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From Initiation to Final Determination of Customs Inquiry

The timeline of a customs inquiry is characterized by strict deadlines and evolving administrative statuses.

1. Initial Filing: The importer submits the Entry Summary via ACE. The entry is placed in “Trade” control status, allowing for electronic edits.
2. Issuance of Inquiry (CBP Form 28): CBP changes the status to “CBP” control. The importer receives the notice through the ACE Portal. A 30-day “hold” period begins for the importer to gather data.
3. Administrative Review: Upon receipt of the response, the CEE specialist reviews the evidence. The entry remains in a “suspended” state, meaning it will not liquidate (finalize).
4. Interim Determination (Proposed Form 29): If CBP intends to take an adverse action, they issue a “Proposed” Form 29. This initiates a 20-day interim status where the importer can challenge the decision before it becomes final.
5. Final Determination (Action Taken Form 29): If the 20 days pass without a successful rebuttal, the action is finalized. CBP issues an “Action Taken” notice, which updates the HTSUS and duty calculation.
6. Liquidation: The entry summary “liquidates” at the new rate. This is the government’s final bill. Under 19 CFR 159.9, notice of liquidation is provided via the ACE portal.
7. Issuance of Redelivery (CBP Form 4647): If the determination involves admissibility (e.g., an FDA refusal), a redelivery demand is issued. The importer has 30 days to physically move the goods.
8. Closure or Penalty: If the goods are redelivered/marked, the case is closed. If not, a “Notice of Penalty or Liquidated Damages” (CBP Form 5955A) is issued, initiating the collection process against the bond.

Common Mistakes and Best Practices

Procedural precision matters in the Customs and Border Protection notice, response, and redelivery process. Errors in timing, routing, or documentation can affect the outcome and may limit later relief. Many adverse results arise not from the legal issue alone, but from how the importer handles the notice.

Common Mistakes

One common mistake is sending the response to the wrong Customs and Border Protection office or using the wrong submission channel. A Form 28 or Form 29 response must be directed to the issuing office, Center, or ACE channel identified in the notice. A misdirected submission does not stop the deadline from running, even if the importer intended to respond on time.

Another frequent problem is submitting an incomplete or inconsistent response. A Form 28 response that leaves questions unanswered, or includes records that conflict with each other, can lead Customs and Border Protection to rely on adverse facts or proceed without further clarification. The same problem can arise with a proposed Form 29 if the importer does not directly address the action CBP is proposing.

Common errors also include:

• Treating Form 4647 like a routine notice instead of a time-sensitive compliance demand
• Failing to keep proof of remarking, redelivery, export, or destruction
• Continuing the same entry practice after Customs and Border Protection has already challenged the classification, value, or origin
• Missing the protest deadline after liquidation

These mistakes often build on each other. A weak response record can lead to an adverse decision, and a missed deadline can remove the importer’s ability to correct that result later.

Best Practices

The best approach is to treat each Customs and Border Protection notice as both a response obligation and a record-building event. Importers should maintain a system for monitoring ACE notices, tracking deadlines, and confirming who is responsible for each open item. Internal review should not depend on one broker’s email or one employee noticing the form.

For Form 28 matters, the response should be organized around the requests listed in the notice. Each answer should match a supporting exhibit, and the record should remain consistent with the original entry documents. For Form 29 matters, the response should focus on the proposed action and explain, with support, why CBP’s position should be changed or withdrawn. For Form 4647 matters, the importer should determine at once where the goods are, who controls them, and what proof Customs and Border Protection will require once the corrective step is completed.

The most useful practices include:

• monitoring ACE notices and response deadlines on a daily basis
• keeping a calendar for response dates, liquidation dates, protest periods, and bond-related obligations
• preserving proof of filing, uploading confirmations, and all supporting attachments
• reviewing high-risk matters early, especially where origin, valuation, trade remedies, or admissibility issues are involved

A disciplined record, a clear response structure, and early deadline control do more than improve compliance. They also preserve protest rights, support mitigation efforts, and reduce the risk that a procedural mistake will become a larger enforcement problem.

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Final Thoughts

The CBP notice, response, and redelivery process is the core post-entry enforcement system for U.S. imports. Forms 28, 29, and 4647 work as a single framework through which Customs and Border Protection reviews entry declarations, issues action notices, and requires correction or redelivery where needed. The first task in any case is identifying the correct form and responding through the proper ACE process.

The outcome often depends on the record. Entry documents, supporting exhibits, and proof of submission shape the administrative file that may later control a protest, petition, or other challenge. A clear and consistent record improves the importer’s ability to respond, contest proposed action, and document compliance.

Deadlines and the procedure also matter. Missing a deadline, using the wrong channel, or failing to preserve proof of compliance can lead to duty increases, liquidated damages, or loss of review rights. Importers that monitor ACE, keep complete records, and apply CBP determinations consistently are in a stronger position to manage risk and maintain compliance.

FAQs

What is Customs and Border Protection Form 28, and what legal authority supports it?

CBP Form 28 is a Request for Information used by U.S. Customs and Border Protection to obtain documents or explanations needed to review an entry. It is tied to CBP’s authority to examine records and verify the correctness of entry information, including classification, valuation, origin, and admissibility. In practice, a Form 28 is the main tool Customs and Border Protection uses to build the factual record before taking further action.

What is the difference between a proposed Form 29 and a final Form 29?

A proposed Form 29 gives the importer notice of CBP’s intended action and a chance to respond before that action becomes final. A final Form 29 reflects a determination that has already been made and usually shifts the matter to the protest process. The key difference is timing: the proposed stage is the importer’s best chance to influence the result before CBP’s position is fixed.

What is CBP Form 4647, and when can CBP demand redelivery?

CBP Form 4647 is the notice used to require marking, redelivery, export, or destruction of goods after release. Customs and Border Protection may issue it when merchandise does not meet marking rules, admissibility requirements, or other release conditions. It is the main post-release enforcement form in cases where CBP requires physical corrective action rather than only a written response.

How do I respond to CBP Forms 28, 29, or 4647 through ACE?

Responses are generally submitted through the ACE forms workflow, with supporting documents uploaded through the proper Customs and Border Protection electronic system. A complete response should identify the entry, answer the issue raised in the notice, attach organized exhibits, and preserve proof of filing. Keeping confirmation of submission is important because it becomes part of the administrative record.

What happens if I miss a Form 4647 redelivery demand or fail to prove compliance?

Failure to comply with a valid Form 4647 demand can lead to liquidated damages under the import bond. For many goods, that exposure is tied to the value of the merchandise, and in some categories it can be higher. The risk is not limited to failing to act; failing to preserve proof that the goods were remarked, redelivered, exported, or destroyed can also create liability.

Can a CBP Form 29 determination be challenged, and what is the deadline?

Yes. A final Customs and Border Protection determination may usually be challenged through the protest process, but the deadline is controlled by statute. In most entry matters, the protest must be filed within 180 days of liquidation. Missing that deadline can bar further administrative and judicial review.

Is a Form 28 always a sign of a penalty case or investigation?

No. Many Form 28s are routine requests used to verify entry details such as classification, value, or origin. However, the response still matters because an incomplete, inconsistent, or unsupported submission can lead to a Form 29 action, a broader enforcement inquiry, or added penalty exposure if the record shows material errors.

How does a Form 29 determination affect future entries of the same goods?

A Form 29 determination may be limited to the entries under review, but it gives the importer notice of CBP’s position on the issue. If Customs and Border Protection has challenged classification, value, or origin, and the importer continues filing later entries the same way without correction, the risk can expand beyond the original case. For that reason, importers should review future entries promptly after receiving an adverse determination.

Resources

1. CBP Form 28 — Request for Information – U.S. Customs and Border Protection
   https://www.cbp.gov/trade/programs-administration/entry-summary/cbp-form-28
2. CBP Form 29 — Notice of Action – U.S. Customs and Border Protection
   https://www.cbp.gov/trade/programs-administration/entry-summary/cbp-form-29
3. CBP Form 4647 — Notice to Mark and/or Notice to Redeliver – U.S. Customs and Border Protection
   https://www.cbp.gov/trade/programs-administration/entry-summary/cbp-form-4647
4. Automated Commercial Environment (ACE) Portal – U.S. Customs and Border Protection
   https://www.cbp.gov/trade/automated
5. 19 U.S.C. § 1484 — Entry of Merchandise – Cornell Law School Legal Information Institute
   https://www.law.cornell.edu/uscode/text/19/1484
6. 19 U.S.C. § 1514 — Protests against Decisions of Customs Officers – Cornell Law School Legal Information Institute
   https://www.law.cornell.edu/uscode/text/19/1514
7. 19 U.S.C. § 1592 — Penalties for Fraud, Gross Negligence, and Negligence – Cornell Law School Legal Information Institute
   https://www.law.cornell.edu/uscode/text/19/1592
8. 19 C.F.R. Part 152 — Classification and Appraisement of Merchandise – Electronic Code of Federal Regulations
   https://www.ecfr.gov/current/title-19/chapter-I/part-152
9. 19 C.F.R. Part 163 — Recordkeeping – Electronic Code of Federal Regulations
   https://www.ecfr.gov/current/title-19/chapter-I/part-163
10. CBP Fines, Penalties, and Forfeitures — Mitigation Guidelines – U.S. Customs and Border Protection
    https://www.cbp.gov/trade/trade-community/programs-outreach/cbp-trade-symposium/fines-penalties-forfeitures
11. U.S. Court of International Trade — Jurisdiction and Procedures – U.S. Court of International Trade
    https://www.cit.uscourts.gov