What are the main elements of customs compliance?

The core pillars are: (1) HTS classification, (2) customs valuation, (3) country-of-origin determination and marking, (4) payment of all duties, taxes, and fees, (5) recordkeeping for five years, and (6) the overarching standard of reasonable care. Forced-labor (UFLPA) and partner-government-agency requirements layer on top for many products.

What is reasonable care in customs compliance?

Reasonable care is the legal standard, introduced by the Customs Modernization Act and codified in 19 U.S.C. §1484, requiring importers to take real, documented steps to declare goods accurately — proper classification, valuation, and origin determination, and seeking expert advice or a binding ruling when unsure. Failing to exercise reasonable care can trigger penalties even without intent to defraud.

How is customs value determined?

Customs value is usually the transaction value — the price actually paid or payable for the goods when sold for export to the U.S. — plus statutory additions such as assists, packing costs, selling commissions, royalties, and proceeds that accrue to the seller. When transaction value cannot be used, CBP applies a hierarchy of alternative methods set out in 19 U.S.C. §1401a.

What is country of origin and substantial transformation?

Country of origin is the country where goods were produced or, if multiple countries are involved, where the last "substantial transformation" occurred — a process that creates a new article with a different name, character, or use. Origin determines duty rates, eligibility for trade agreements, trade-remedy exposure (e.g., Section 301), and marking requirements.

What are country-of-origin marking requirements?

Most imported articles must be marked conspicuously, legibly, and permanently with their country of origin (for example, "Made in China") so the ultimate purchaser in the U.S. knows where the goods came from. Failure to mark correctly can result in marking duties and other consequences under 19 U.S.C. §1304.

What records must importers keep, and for how long?

Importers must keep all records related to their imports — entry summaries (CBP Form 7501), commercial invoices, classification and valuation support, origin documentation, and payment records — for 5 years from the date of entry, under 19 U.S.C. §1508. CBP can request these records during an audit or a Form 28 inquiry.

What is a CBP Form 28 and Form 29?

A CBP Form 28 (Request for Information) is how CBP asks an importer for additional information about an entry — for example, to support a classification or value. A CBP Form 29 (Notice of Action) tells the importer that CBP is taking or proposing an action, such as reclassifying goods or assessing additional duties. Responding promptly and well to a CF28 can prevent an adverse CF29.

What is a customs audit or Focused Assessment?

A Focused Assessment is CBP’s structured audit of an importer’s internal controls and compliance across classification, valuation, origin, and other areas. CBP evaluates whether the importer’s systems reliably produce accurate entries; weak controls or material errors can lead to expanded review, additional duties, and penalties.

What are the penalties for customs non-compliance?

Under 19 U.S.C. §1592, CBP can assess penalties for material false statements or omissions, graded by culpability — negligence, gross negligence, or fraud — on top of recovering unpaid duties plus interest. Penalty amounts escalate sharply with culpability, and separate consequences apply for issues like forced labor or marking violations.

What is a prior disclosure?

A prior disclosure is a voluntary report to CBP of a customs violation before (or without knowledge of) a CBP investigation. Making a valid prior disclosure substantially reduces potential penalties under 19 U.S.C. §1592 — typically limiting exposure to interest on the unpaid duties for negligence-level errors — so it is a key tool when an importer discovers its own mistake.

CTPAT (Customs Trade Partnership Against Terrorism) is a voluntary CBP program in which importers and other supply-chain parties strengthen their security practices in exchange for benefits such as fewer inspections and priority processing. It focuses on supply-chain security rather than entry accuracy, but participation signals a mature compliance posture.

How do I correct an error after an entry is filed?

If you find an error before liquidation, you can file a Post-Summary Correction (PSC) within 300 days of the entry date. After liquidation, you can file a protest within 180 days. These mechanisms let you fix classification or value errors — recovering overpaid duty, or paying additional duty owed — and are central to staying compliant.

What are Partner Government Agency (PGA) requirements?

Many products are regulated at import by agencies other than CBP — Partner Government Agencies — such as the FDA (food, drugs, devices), EPA (chemicals, vehicles), USDA (agriculture), and CPSC (consumer products). Compliant importers must meet those agencies’ admissibility and data requirements, which CBP collects and enforces at entry alongside its own.

What is the difference between customs compliance and trade compliance?

Customs compliance focuses on the import side — classification, valuation, origin, duties, and CBP recordkeeping. Trade compliance is broader, covering both imports and exports, including export controls (EAR/ITAR), sanctions (OFAC), and forced-labor rules (UFLPA). Customs compliance is a major component of an overall trade-compliance program.

Who is responsible for customs compliance?

The importer of record is legally responsible for customs compliance, even when a licensed customs broker prepares and files the entries. The broker acts under a power of attorney, but the duty to classify, value, declare, pay, and keep records — and the liability for getting it wrong — stays with the importer.

How can importers improve customs compliance?

Build a documented compliance program: written classification and valuation procedures, supplier and restricted-party screening, recordkeeping systems, periodic internal audits, a process for responding to CF28/CF29 notices, and binding rulings for uncertain classifications. Automating classification and screening reduces error rates and creates the audit trail that demonstrates reasonable care.

What laws and regulations govern customs compliance?

The foundation is the Tariff Act of 1930 (Title 19 of the U.S. Code), with classification and reasonable care under §1484, valuation under §1401a, marking under §1304, recordkeeping under §1508, and penalties under §1592. The Customs Modernization Act introduced the reasonable-care framework, and CBP’s implementing rules are in 19 CFR.

Guide

Customs compliance

Q: What is customs compliance?

Customs compliance is the practice of meeting every legal obligation that attaches to importing goods into the United States — classifying products correctly, declaring the right value and country of origin, paying the duties and fees owed, keeping records, and exercising reasonable care. It is administered and enforced by U.S. Customs and Border Protection (CBP) under Title 19 of the U.S. Code and 19 CFR.

Customs compliance is the practice of meeting every CBP obligation that attaches to an import — from correct classification and valuation to country-of-origin marking, duty payment, and recordkeeping. This guide covers the pillars, how CBP checks them, and what’s at stake.

What is customs compliance?

Customs compliance is everything an importer must do to bring goods into the U.S. lawfully: classify them correctly, value them correctly, declare the right country of origin, pay the duties and fees owed, and keep the records to prove it — all under the standard of reasonable care. It is governed by the Tariff Act of 1930 (Title 19) and enforced by CBP. For the requirements specific to bringing goods in, see the import compliance guide.

The pillars of customs compliance

Most compliance failures trace back to one of a handful of areas. Get these right, consistently and provably, and you have a compliant import program.

Classification →

Assign the correct 10-digit HTS code to every product — it drives the duty rate and admissibility.

Valuation

Declare the correct customs value, usually the transaction value plus statutory additions like assists and royalties.

Country of origin

Determine origin (often by substantial transformation) and mark goods correctly — it controls duties and trade remedies.

Duty payment

Pay all duties, taxes, and fees due, including any Section 301/232 or IEEPA tariffs that apply.

Recordkeeping

Keep all import records for five years from the date of entry and produce them on request.

Reasonable care →

The overarching legal standard: take real, documented steps to get every declaration right.

How CBP checks compliance

CBP rarely inspects every shipment. Instead it verifies after the fact: a CBP Form 28 requests information on an entry, a CBP Form 29 notifies you of an action like reclassification, and a Focused Assessment audits your internal controls. Strong, documented procedures are what turn these from a crisis into a routine response.

Penalties — and prior disclosure

Under 19 U.S.C. §1592, CBP can recover unpaid duties plus interest and assess penalties graded by culpability — negligence, gross negligence, or fraud (see the customs penalties guide for the amounts). The most important safety valve is the prior disclosure: voluntarily reporting your own error before CBP finds it sharply reduces the penalty exposure.

Building a compliance program

Reasonable care is provable, not just promised. A real program has written classification and valuation procedures, supplier and forced-labor screening, sound recordkeeping, periodic internal audits, and binding rulings for the hard calls — creating the audit trail CBP looks for. New to the vocabulary? The trade compliance glossary defines every term used here.

HTSUS Guide →

How classification — pillar one — actually works.

Importer of Record →

The party legally on the hook for compliance.

Duty Drawback →

Recover duties on goods you later export or destroy.