CBP Audit Survey vs Focused Assessment: What the Letter Means

A CBP audit survey is a targeted, single-issue review that U.S. Customs and Border Protection uses to evaluate a specific compliance area, such as valuation of related-party transactions or the accuracy of a particular HTS classification. A Focused Assessment (FA) is a broader, structured audit of an importer's overall trade-compliance program. Both begin with a formal notification letter, and how you read and respond to that letter determines how the review unfolds.

What Is a CBP Audit Survey?

An audit survey is the narrower of the two review types. CBP's National Targeting and Analysis Group selects importers based on risk signals, and a survey may be launched to answer a focused question without committing to a full examination of the importer's entire compliance posture.

Scope and duration

• Typically limited to one compliance issue, one HTS chapter, or one entry period.
• Generally shorter than a Focused Assessment, often concluding within a few months.
• May result in a no-action finding, a recommendation for corrective action, or an escalation to a Focused Assessment if broader problems surface.

Common survey triggers

• Inconsistent valuation on related-party invoices.
• High rate of post-entry corrections or protests in a single commodity area.
• Country-of-origin discrepancies in a targeted product category.
• Unusually high first-sale or assists claims.

Understanding what triggers a CBP review in the first place can help importers assess their risk before a letter arrives. See What Triggers a CBP Audit: Risk Factors Importers Should Know for a deeper look at the selection factors CBP weighs.

What Is a CBP Focused Assessment?

A Focused Assessment is CBP's primary tool for a comprehensive evaluation of an importer's internal controls, record-keeping practices, and overall compliance with customs laws. It is conducted by CBP's Office of Trade, Regulatory Audit and Agency Advisory Services (RAAAS) and follows a structured, multi-phase methodology.

Phases of a Focused Assessment

1. Pre-assessment survey (PAS): CBP reviews your internal controls questionnaire responses and selects which trade areas carry the highest risk. This phase determines whether the FA continues and what it will cover.
2. Assessment compliance testing (ACT): Auditors test specific transactions and records against the risk areas identified in the PAS.
3. Report and follow-up: CBP issues findings, and the importer may be asked to make tender of unpaid duties, file prior disclosures, or implement corrective action.

For a detailed breakdown of each phase and how to prepare your team, see CBP Focused Assessment: How the Audit Works and How to Prepare.

Reading the CBP Notification Letter

Both audit surveys and Focused Assessments begin with a formal written notification. The letter is not a subpoena, but it carries significant legal weight because it starts the clock on your response obligations and shapes how CBP perceives your cooperation. Read every paragraph carefully before taking any action.

Key elements to identify

• Type of review: The letter will typically state whether CBP is conducting a "survey," a "Focused Assessment," or a "pre-assessment survey." If the language is ambiguous, contact the assigned auditor for clarification before assuming scope.
• Assigned auditor and contact information: All communications should go through this person. Designate a single point of contact on your side immediately.
• Requested records and timeframe: The letter will list the entry period under review and the categories of records CBP wants, such as commercial invoices, packing lists, payment records, or importer security filings.
• Response deadline: Note the deadline for acknowledging receipt and the separate deadline for producing records. Missing either creates a negative impression and can affect a later penalty or prior-disclosure analysis.
• Legal authority cited: CBP conducts regulatory audits under its broad authority to examine records related to the importation of merchandise. The recordkeeping requirements of 19 U.S.C. 1509 underpin CBP's right to access books, records, and data.

Survey letter vs. FA letter: differences to watch for

• A survey letter is often shorter and identifies a single trade area or issue by name.
• An FA letter typically encloses an internal controls questionnaire and requests a broader set of records across multiple compliance topics.
• An FA letter may reference specific audit standards and ask you to confirm that a senior officer has read and signed the questionnaire.

How to Respond: Practical Steps

Your response in the first two weeks of a CBP audit review often sets the tone for the entire examination. A cooperative, organized response reduces friction; a slow or incomplete one may prompt CBP to expand the scope of review.

Immediate actions

• Acknowledge receipt promptly. Even if you need more time to gather records, confirm in writing that you received the letter and identify your point of contact.
• Preserve records. Issue an internal litigation hold covering all documents related to the entries and time period cited. Do not delete, overwrite, or modify any records.
• Engage counsel or a licensed customs broker. A trade attorney or experienced broker can help you assess whether prior disclosure is warranted before CBP formally identifies errors.
• Conduct an internal pre-review. Pull a sample of the entry data CBP is likely to examine. Identify errors before the auditor does, so you can address them proactively.

If the survey reveals a problem

If your internal review uncovers underpaid duties, a prior disclosure filed before CBP has made a formal finding can significantly reduce penalty exposure under the fraud, gross negligence, and negligence penalty framework. Timing is critical: the window closes once CBP formally notifies you of a specific violation.

Audit Survey vs. Focused Assessment: A Quick Comparison

• Scope: Survey covers one issue; FA covers the full compliance program.
• Duration: Surveys typically conclude faster; FAs can run six months to over a year.
• Output: Survey may result in a no-action memo or referral; FA results in a formal audit report with findings.
• Risk of escalation: A survey can become an FA if auditors find systemic problems.
• Internal controls questionnaire: Not typically required in a survey; always part of an FA pre-assessment.

What Importers Should Do

1. Read the notification letter in full to confirm whether CBP has initiated a survey or a Focused Assessment, and note every deadline and requested document category before responding.
2. Preserve all records immediately covering the entry period cited, including electronic data, commercial invoices, and any internal valuation or classification memos.
3. Consult a trade attorney or licensed customs broker to evaluate whether a prior disclosure is in your interest before CBP completes its own findings.
4. Conduct an internal records review of the specific compliance area identified so you understand your exposure before the auditor does.

This article is general information, not legal advice.