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Informed Compliance CBP: How It Works and What It Demands

Published: August 7, 2026  ·  7 min read
Informed Compliance CBP: How It Works and What It Demands
Photo: Kindel Media / Pexels

Key Points

On this page

  1. The Mod Act bargain: the legal foundation
  2. What informed compliance means in practice
  3. Reasonable care: the importer's side of the bargain
  4. How enforcement escalates when the bargain breaks down
  5. Recordkeeping as the connective tissue
  6. What importers should do
  7. Key references

Informed compliance is CBP's commitment to publish clear, accessible guidance on customs requirements so that importers can comply voluntarily. The other side of that bargain is the importer's legal duty to exercise reasonable care in making entry. When importers ignore published guidance, CBP's response is enforced compliance: audits, penalty proceedings, and duty demands that would not have arisen had the guidance been followed.

The links in this article go to the primary documents: the proclamations, Federal Register notices, and official agency pages themselves. Read the source.

The Mod Act Bargain: The Legal Foundation

Before 1993, U.S. customs law operated largely on a government-driven model. CBP (then the U.S. Customs Service) was expected to catch errors; importers were largely passive. The Customs Modernization Act changed that by shifting significant responsibility to the trade community.

The Mod Act introduced two interlocking obligations:

These obligations are codified in 19 U.S.C. 1484, which places the duty to make entry on the importer of record. CBP's counterpart commitment to publish guidance appears throughout the statute and has been implemented through the Informed Compliance Publication program.

What Informed Compliance Means in Practice

CBP fulfills its side of the bargain through several channels. Understanding each one tells an importer where to look before making entry decisions.

Informed Compliance Publications (ICPs)

CBP's Informed Compliance Publications are free, detailed guides covering topics such as customs valuation, textile and apparel classification, marking rules, and country-of-origin determinations. Each ICP synthesizes statutes, regulations, and rulings into plain-language explanations. Reading the relevant ICP before importing a product category is one of the clearest demonstrations of reasonable care an importer can show.

Binding Rulings

Under 19 U.S.C. 1502, importers may request a binding classification ruling from CBP before making entry. A ruling gives the importer a written CBP determination they can rely on. Ruling requests and published rulings are searchable through CBP's CROSS database. Using a ruling is not required, but ignoring a published ruling that directly addresses your merchandise is difficult to defend.

Regulations and the Harmonized Tariff Schedule

The Harmonized Tariff Schedule of the United States (HTSUS), maintained by the U.S. International Trade Commission, is the authoritative classification resource. CBP's implementing regulations are published at Title 19 of the Code of Federal Regulations. Both are primary documents that importers and brokers are expected to consult.

Reasonable Care: The Importer's Side of the Bargain

Reasonable care is not defined by a single checklist, but CBP has published extensive guidance on what it expects. The standard asks: what would a knowledgeable, prudent importer do under the same circumstances?

Factors CBP considers

The broker does not absorb the importer's duty

Using a licensed customs broker is good practice, but it does not transfer the importer's reasonable-care obligation. CBP has consistently held that the importer of record remains responsible for the accuracy of the entry. Providing a broker with inaccurate information, or failing to review entry documents, can itself constitute a failure of reasonable care.

How Enforcement Escalates When the Bargain Breaks Down

When an importer fails to exercise reasonable care, or when CBP finds evidence of willful disregard or fraud, the agency has a structured set of enforcement tools that escalate in severity.

Supplemental duty demands and prior disclosure

CBP may demand unpaid duties at any point before liquidation becomes final. An importer who discovers an error can file a prior disclosure under 19 U.S.C. 1592(c)(4), which limits penalty exposure to the unpaid duties (plus interest) rather than the full statutory penalty. Prior disclosure is one of the most powerful tools available to an importer who has found a problem before CBP does.

For situations where CBP seeks only unpaid duties without a full penalty action, see our article on 19 USC 1592(d) duty demands.

Penalties under 19 U.S.C. 1592

The primary customs penalty statute, 19 U.S.C. 1592, penalizes material false statements, omissions, or acts in connection with an entry. Penalty amounts are set by the level of culpability:

The statute of limitations for penalty actions is generally five years from the date of the alleged violation. For a detailed treatment, see our article on the customs penalty statute of limitations under 19 U.S.C. 1621.

Focused assessments and audits

CBP's Focused Assessment program is a structured audit process targeting importers whose risk profiles suggest systemic compliance weaknesses. A Focused Assessment examines entry accuracy, internal controls, and recordkeeping across a sample of transactions. An importer with documented reasonable-care practices, complete records, and evidence of using CBP's informed compliance materials is far better positioned in a Focused Assessment than one with no compliance program at all.

Recordkeeping as the Connective Tissue

Informed compliance and reasonable care are only as provable as the records that support them. CBP's recordkeeping requirements mandate that importers retain entry records, commercial documents, and related correspondence for five years from the date of entry.

The specific list of records CBP can demand is formalized in what practitioners call the "(a)(1)(A) list." Our article on the CBP (a)(1)(A) list explains exactly which documents CBP can require on request, without prior notice. Our article on customs recordkeeping requirements and the five-year rule covers the broader retention framework.

Gaps in recordkeeping do two kinds of damage. First, they make it impossible to demonstrate that reasonable care was exercised. Second, failure to produce records on a CBP demand is itself a separate compliance violation with its own penalty exposure under the recordkeeping provisions of the customs laws.

What Importers Should Do

Key References


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About the Author

Franz Brotzen, CustomsGenius CEO & Founder. Franz is a published researcher on U.S. trade policy. He has worked at think tanks in Washington DC and Tokyo, where his academic publications focussed on tariffs and legal compliance. Franz received his JD from Harvard Law School.

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