Reasonable Care Is a Verb. CBP Wants to See You Do It.

The standard isn’t “did you get it right.” It’s “can you show the file that proves you tried.” Here’s what that file looks like – and what it saves you when the duties are wrong.

Every importer eventually meets the phrase. It shows up in the CF-28 request for information, in the audit engagement letter, in the penalty notice that arrives eighteen months after the entry cleared. Reasonable care. Two words that sound like a suggestion and function like a legal test.

Here’s the part people miss: reasonable care is not a feeling, a good intention, or a clean record. It’s a standard written into the Customs Modernization Act of 1993, and it made the importer – not the broker, not the supplier, not CBP – legally responsible for the accuracy of every entry. Congress called it “shared responsibility.” In practice, the sharing looks like this: CBP builds the systems, and you carry the burden of proving you used them correctly.

// What “reasonable” actually means

CBP deliberately declined to define reasonable care as a fixed list. The standard is what a “reasonably prudent importer” would do given the specific facts of the transaction. A one-time importer of a single pallet is held to a different expectation than a company running 4,000 entries a month through six countries of origin. The bar scales with your sophistication, your volume, and the complexity of what you’re bringing in.

That flexibility cuts both ways. It means there’s no single form you can file to be safe. It also means that if you build a real, documented process, you get to define your own defense. The importer who can produce a written classification rationale, a broker’s opinion, and a supplier audit trail is standing on very different ground than the one who says “my forwarder handled it.”

// Why 2026 raised the stakes

For years, a misclassification on a low-duty item was a rounding error. Wrong HTS code, 2.5% versus 3.1%, nobody’s calling. That world is gone. With Section 232 and Section 301 measures now stacked on top of the base rate, a single wrong classification or origin call can swing the duty owed by 25, 50, even over 100 percentage points. The same clerical slip that used to cost pennies now moves real money – and CBP knows exactly where that incentive points.

The enforcement question has sharpened to match. When a supplier hands you false origin documents, CBP no longer asks only whether the paperwork was wrong. It asks whether you audited the origin claim, whether you verified that the processing in a transit country was actually substantial enough to confer origin, whether a reasonably prudent importer in your position would have caught it. The reasonable care expected for a classification decision has risen in direct proportion to the duty now riding on it.

// The price of getting it wrong

Penalties under 19 U.S.C. Section 1592 scale with your level of culpability – and the difference between the tiers is enormous. This is the ladder CBP climbs:

And in every tier, CBP still collects the full unpaid duties on top of the penalty. The number that decides which row you land in is almost never the underlying error itself. It’s whether you can show the care you took around it. Reasonable care is the single lever that moves you down the ladder – and documentation is how you pull it.

// What reasonable care looks like in a file

If an auditor opened your entry file tomorrow, what would prove you exercised reasonable care? Not a mission statement. These five artifacts:

1. A written classification rationale. For your significant HTS codes, a short memo: the code chosen, the General Rules of Interpretation applied, and why competing headings were rejected. Dated. Kept on file.
2. Evidence you consulted an expert. Reliance on a licensed Customs Broker or trade attorney is itself a pillar of reasonable care – but only if you can show you asked the question and got an answer. Save the email, the opinion, the ruling request.
3. Binding rulings where the answer isn’t obvious. For high-value or ambiguous items, a CBP ruling (or a documented review of existing CROSS rulings) converts a judgment call into a defensible position of record.
4. A supplier and origin audit trail. Certificates of origin, mill certs, manufacturing affidavits – plus evidence you actually tested them rather than filing them. This is where 2026 enforcement lives.
5. Recordkeeping that survives five years. The Section 1592 statute reaches back. Entry records, correspondence, and the rationales above must be retrievable long after the goods have shipped and the people have moved on.

// The move nobody wants to make – and should

If you find the error before CBP does, you are not out of options. A prior disclosure – coming forward before a formal investigation begins – collapses the penalty dramatically. For negligence and gross negligence, the civil penalty drops to interest on the unpaid duties. For fraud, it falls to 100% of the unpaid duties rather than the full domestic value of the goods. Still a hit, but a fraction of the exposure.

Prior disclosure is a discipline, not a panic button. It works because you built the file – the rationale, the broker opinion, the audit trail – that lets you spot the error and act on it fast. Reasonable care isn’t just what protects you in the audit room. It’s what tells you there’s a problem before the government does.

// The field guide behind this briefing

Reasonable Care

This briefing is drawn from the full field guide — a practical walkthrough of the “reasonable care” standard CBP holds importers to, and the records that keep you on the right side of an audit.

Read the field guide →