AUTHORITATIVE TRADE DICTIONARY

Customs & International Trade Glossary

Explore statutory definitions, customs valuation criteria, and trade compliance terminology across 28 core international trade terms.

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Defined Term

HS Code (Harmonized System Code)

An HS Code (Harmonized Commodity Description and Coding System) is a standardized 6-digit numerical nomenclature developed by the World Customs Organization (WCO) to classify traded commodities globally across 200+ countries.

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Defined Term

HTS Code (Harmonized Tariff Schedule Code)

An HTS code is an 8- to 10-digit national tariff extension used by specific countries—such as the United States (HTSUS)—to enforce statutory import duties, trade quotas, and statistical tracking beyond the 6-digit WCO backbone.

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Defined Term

Harmonized System (WCO HS)

The Harmonized System is the global customs classification framework governed by the World Customs Organization (WCO). Updated every five years (currently 2022 Edition), it encompasses 21 Sections, 98 Chapters, and 5,755 6-digit subheadings.

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Defined Term

Customs Tariff

A customs tariff is a statutory schedule of financial duties, taxes, or surcharges levied by a sovereign nation on imported or exported merchandise upon crossing international customs boundaries.

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Defined Term

Most-Favored-Nation (MFN) Duty Rate

The MFN duty rate is the standard non-discriminatory general tariff rate applied to commercial imports from World Trade Organization (WTO) member countries, unless a preferential free trade agreement (FTA) applies.

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Defined Term

Ad Valorem Duty

An ad valorem duty is a customs tariff calculated as a fixed percentage of the customs value of imported goods (e.g. 5.5% ad valorem on FOB value).

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Defined Term

Specific Duty

A specific duty is a customs tariff assessed as a fixed monetary amount per physical unit or weight of imported merchandise (e.g. $0.20 per kilogram or $1.50 per dozen).

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Defined Term

CIF Valuation (Cost, Insurance, and Freight)

CIF is an international customs valuation basis where duty and import taxes are calculated on the combined total value of the goods, international freight shipping, and marine insurance.

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Defined Term

FOB Valuation (Free on Board)

FOB is a customs valuation basis where import duty and fees are assessed solely on the transaction value of the merchandise loaded at the export port, excluding international freight and shipping insurance.

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Defined Term

De Minimis Customs Threshold

The de minimis threshold is the statutory maximum monetary value below which imported shipments enter a country duty-free and tax-free without formal customs entry.

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Defined Term

Merchandise Processing Fee (MPF)

The Merchandise Processing Fee (MPF) is an ad valorem user fee levied by U.S. Customs and Border Protection (CBP) on formal commercial entries (CBP Form 7501). Calculated at 0.3464% of FOB value, subject to a statutory minimum of $32.71 and maximum of $634.62 per entry.

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Defined Term

Harbor Maintenance Fee (HMF)

The Harbor Maintenance Fee (HMF) is a U.S. federal fee assessed at 0.125% of the cargo value on commercial ocean freight imports discharged at designated U.S. waterborne ports.

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Defined Term

Section 301 China Tariffs

Section 301 tariffs are additional ad valorem duties (7.5% or 25%) imposed by the U.S. Trade Representative (USTR) under Section 301 of the Trade Act of 1974 on specified products originating in China (Lists 1 through 4).

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Defined Term

Section 232 National Security Tariffs

Section 232 tariffs are trade remedy duties imposed under Section 232 of the Trade Expansion Act of 1962 on imports of steel (25%) and aluminum (10%) deemed to threaten U.S. national security.

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Defined Term

Anti-Dumping and Countervailing Duties (AD/CVD)

AD/CVD are specialized trade remedy duties enforced by the U.S. Department of Commerce and CBP to offset unfairly dumped or foreign government-subsidized merchandise sold below fair market value.

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Defined Term

Column 2 Statutory Tariff Rates

Column 2 rates are statutory non-MFN tariff rates applied by the United States to imports originating in countries not enjoying normal trade relations (e.g. Cuba, North Korea, Russia, and Belarus).

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Defined Term

E.U. TARIC (Integrated Tariff of the European Union)

TARIC is the 10-digit multilingual customs tariff database of the European Union integrating EU Combined Nomenclature subheadings, commercial measures, tariff suspensions, and quotas.

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Defined Term

Schedule B Export Classification

Schedule B is a 10-digit statistical commodity classification code administered by the U.S. Census Bureau used to track and report commercial exports from the United States.

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Defined Term

Rules of Origin

Rules of origin are statutory criteria used to establish the economic nationality of imported merchandise for preferential tariff treatment under Free Trade Agreements (e.g. Tariff Shift or Regional Value Content rules).

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Defined Term

USMCA / CUSMA / T-MEC

The United States-Mexico-Canada Agreement (USMCA) is the trilateral free trade agreement replacing NAFTA. Provides duty-free preference for qualifying originating goods produced within North America.

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Defined Term

Generalized System of Preferences (GSP)

GSP is a trade preference program authorizing duty-free entry for thousands of eligible commodities exported from designated beneficiary developing nations.

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Defined Term

EORI Number (Economic Operators Registration)

An EORI number is a unique European and U.K. customs identification code required by businesses and traders to submit customs declarations and import goods commercially.

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Defined Term

Incoterms Rules

Incoterms (International Commercial Terms) are standardized 3-letter trade terms published by the International Chamber of Commerce (ICC) defining buyer and seller obligations for risk, freight costs, insurance, and customs clearance.

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Defined Term

Customs Broker

A customs broker is a licensed individual or firm authorized by national customs authorities (such as U.S. CBP under 19 CFR Part 111) to clear commercial shipments through customs on behalf of importers.

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Defined Term

Binding Customs Ruling

A binding ruling is an official written decision issued by a national customs administration (such as U.S. CBP CROSS, U.K. HMRC ATaR, or E.U. EBTI) establishing legally binding tariff classification for a specific commodity.

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Defined Term

Total Landed Cost

Total landed cost is the complete sum of all expenses incurred to transport a commercial product from the supplier to the destination door—including product price, shipping freight, customs duties, import VAT/taxes, processing fees (MPF/HMF), and insurance.

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Defined Term

Country of Origin

Country of origin is the country where a commercial commodity was wholly manufactured, produced, or underwent substantial transformation into a new article of commerce.

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Defined Term

Partner Government Agencies (PGA)

Partner Government Agencies (PGAs) are non-customs government regulatory authorities—such as the FDA, EPA, USDA, CITES, and FCC—that regulate specialized commodity imports prior to customs release.

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