CUSTOMS LITIGATION | 2026-09-27

How CIT Litigation Works: Challenging Customs Decisions at the U.S. Court of International Trade

A California importer’s guide to suing over tariffs, classification, valuation, and country-of-origin decisions — the deadlines, the prerequisites, and what to expect.

When U.S. Customs and Border Protection (CBP) makes a decision an importer disagrees with — the wrong tariff classification, an inflated customs value, a country-of-origin call, or a denied refund — the place to fight it is the U.S. Court of International Trade (CIT), a specialized Article III federal court with nationwide jurisdiction.

When U.S. Customs and Border Protection (CBP) finalizes a decision an importer believes is wrong, the dispute does not stay with the agency forever. Congress created a dedicated federal court — the U.S. Court of International Trade — to hear these cases. This guide walks through when you can go to the CIT, what you must do first, the deadlines that control everything, and how a case proceeds from filing through appeal.

What Is the U.S. Court of International Trade?

The Court of International Trade (CIT) is a federal court established under Article III of the U.S. Constitution (28 U.S.C. § 251), with the same judicial power as a U.S. district court. It sits in New York City but has nationwide jurisdiction — a Los Angeles, Long Beach, or Oakland importer litigates in the CIT regardless of where the goods entered. Its judges are appointed by the President and confirmed by the Senate, hold their offices during good behavior, and by statute no more than five of the nine may come from the same political party (28 U.S.C. § 251(a)).

The CIT exists because customs and international-trade law is highly technical, and Congress wanted a single expert court to decide these disputes uniformly. Its decisions are appealed to the U.S. Court of Appeals for the Federal Circuit, and from there potentially to the U.S. Supreme Court.

When Do You Go to the CIT? The Protest Step Comes First

For the most common customs disputes, you cannot go straight to court — you must first exhaust CBP’s administrative process:

1. Entry and liquidation

When goods enter, the importer files an entry; CBP later “liquidates” the entry, finalizing the duties owed.

2. File a protest — 19 U.S.C. § 1514

If you disagree with the classification, valuation, rate, or amount of duties on a liquidated entry, you file a protest with CBP within 180 days of liquidation. The protest is your formal objection and must state the specific decisions being challenged.

3. CBP allows or denies — 19 U.S.C. § 1515

CBP reviews the protest and either grants it (and reliquidates) or denies it.

4. Sue at the CIT — 28 U.S.C. § 1581(a)

If CBP denies the protest, you may bring a civil action in the CIT contesting that denial. Missing the 180-day protest window is usually fatal to the claim, which is why importers should have the entry documents and liquidation dates reviewed immediately after a disputed CBP decision.

The CIT’s Jurisdiction, Section by Section (28 U.S.C. § 1581)

The CIT’s authority is defined by statute. The most important grants are:

  • § 1581(a) — Denied protests. Civil actions contesting the denial of a protest under 19 U.S.C. § 1515. This is the core customs case: classification, valuation, rate, and refund disputes.
  • § 1581(b) — Customs broker licenses. Actions concerning the revocation or suspension of a customs broker’s license.
  • § 1581(c) — Antidumping and countervailing duties. Actions under 19 U.S.C. § 1516a challenging Commerce Department and International Trade Commission determinations in AD/CVD proceedings.
  • § 1581(i) — Residual jurisdiction. A broad “catch-all” over civil actions arising out of U.S. laws providing for tariffs, duties, embargoes, and the administration and enforcement of those laws.

Which subsection applies determines the deadline, the prerequisites, and the standard of review — so pleading jurisdiction correctly is one of the first strategic decisions in any CIT case.

Types of Cases the CIT Hears

  • Tariff classification. Whether CBP put your product in the right Harmonized Tariff Schedule (HTSUS) heading — often the difference between a low duty rate and a high one.
  • Customs valuation. Whether CBP correctly determined the dutiable value of the goods.
  • Country of origin and marking. Whether goods were correctly attributed to a country of origin, which affects duty rates, trade-preference eligibility, and marking requirements.
  • Denied refund and reliquidation claims. Recovering overpaid duties.
  • Antidumping/countervailing duties. Challenging AD/CVD margins and injury determinations under § 1516a.
  • Trade-program and tariff challenges. Disputes over the scope and administration of tariff and trade measures, typically under residual jurisdiction.

Deadlines and Prerequisites — Miss One and the Case Is Over

CIT litigation is unforgiving on procedure. Key rules:

  • Statute of limitations — 28 U.S.C. § 2636. A § 1581(a) action must be filed within 180 days after the date of the denial of the protest. Residual-jurisdiction actions under § 1581(i) generally must be filed within two years after the cause of action accrues.
  • Pay the duties first — 28 U.S.C. § 2637(a). To bring a § 1581(a) action, all liquidated duties, charges, or exactions must be paid before the suit is filed.
  • Exhaust administrative remedies — 28 U.S.C. § 2637. You generally must complete CBP’s protest process before the court will hear the case.
  • Standing — 28 U.S.C. § 2631. The statute specifies who may bring each type of action.

Because these deadlines run from specific dates on CBP’s paperwork (liquidation, protest denial), the single most valuable early step is a careful review of the entry summaries, the CBP Form 7501s, and the liquidation and denial notices.

How a CIT Case Proceeds

A CIT action begins with a summons and complaint filed in the court; attorneys appearing before the CIT must be admitted to its bar. Depending on the type of case, the court may decide the matter de novo on a new record (common in classification cases) or review an agency’s administrative record under a deferential standard (common in AD/CVD cases). The applicable standard shapes the entire litigation strategy. Certain cases — including those raising the constitutionality of a statute or matters of broad significance — may be heard by a three-judge panel rather than a single judge (28 U.S.C. § 255). Cases may be decided on motions, including motions for summary judgment or judgment on the agency record, or, less often, after trial.

Appeals: The Federal Circuit and Beyond

A party dissatisfied with a CIT decision may appeal to the U.S. Court of Appeals for the Federal Circuit (28 U.S.C. § 1295), the specialized appeals court for trade and customs matters. A Federal Circuit decision may in turn be reviewed by the U.S. Supreme Court on a petition for certiorari. This appellate path is why trade cases with national importance can ultimately reach the Supreme Court.

Why Importers Use a CIT-Admitted Attorney

CIT litigation combines a technical body of law (the HTSUS, valuation rules, origin rules, AD/CVD statutes) with strict procedural traps (protest deadlines, the pay-first rule, jurisdictional pleading). A misstep on any of these can end a meritorious claim before it is heard. Counsel admitted to the CIT bar can evaluate whether a dispute belongs in a protest, a § 1581(a) action, or a § 1581(i) action; calendar every deadline from the governing CBP notice; and frame the case under the correct standard of review.

Frequently Asked Questions

Where is the Court of International Trade located, and can a California importer use it?

The CIT sits in New York City but has nationwide jurisdiction, so a California importer can litigate there no matter where the goods entered. Cases are handled through filings and, when needed, appearances — you are generally not required to relocate a dispute to New York.

How long do I have to challenge a CBP decision?

For a denied protest, you generally have 180 days from liquidation to file the protest (19 U.S.C. § 1514) and 180 days from the protest’s denial to sue in the CIT (28 U.S.C. § 2636(a)). Residual-jurisdiction actions generally have a two-year window. These deadlines are strict — confirm your dates early.

Do I have to pay the duties before I can sue?

For a § 1581(a) action, yes — all liquidated duties, charges, and exactions must be paid before filing (28 U.S.C. § 2637(a)).

What kinds of decisions can I challenge?

Common CIT cases involve tariff classification, customs valuation, country of origin, denied refunds, antidumping/countervailing duties, and the administration of tariff and trade programs.

What happens if I lose at the CIT?

You may appeal to the U.S. Court of Appeals for the Federal Circuit, and potentially seek Supreme Court review after that.

Talk to a Customs Litigation Attorney

If CBP has classified your product incorrectly, overvalued your goods, denied a refund, or hit you with duties you believe are wrong, the deadlines are already running from the dates on your CBP paperwork. Trembach Law Firm handles Court of International Trade litigation for California importers. Call (818) 514-7680 for a consultation and bring your entry summaries, liquidation notices, and any protest denial.

Contact Trembach Law Firm at (818) 514-7680 for a confidential consultation.

Trembach Law Firm | 27001 Agoura Road, Suite 350, Calabasas, CA 91301