INTERNATIONAL TRADE LAW
Schedule B Numbers Explained for U.S. Exporters
A Schedule B number is the 10-digit code the U.S. government uses to classify a product for export. It is administered by the U.S. Census Bureau, built on the international Harmonized System, and required on your export filings — it is how the United States tracks what leaves the country and applies export rules to it. Getting it right is the exporter’s job, and the wrong code follows you straight into filing errors and penalties.
The Schedule B number is not optional paperwork. It drives your Electronic Export Information filing, your trade statistics, and your eligibility for preferential treatment under trade agreements.
How a Schedule B Number Is Built
The code is 10 digits, and each part comes from a different layer of the classification system:
| Digits | Level | Set by |
|---|---|---|
| First 6 | Heading and subheading | World Customs Organization (Harmonized System) — the same worldwide |
| 7–10 | U.S. statistical suffix | U.S. Census Bureau — specific to U.S. exports |
The first six digits are common to every country that uses the Harmonized System. The last four are a U.S.-only statistical extension. So a Schedule B number always starts the same as the international code for that product, then adds U.S. detail.
A common myth — repeated in older guides — is that Schedule B numbers are six digits. They are not. Six digits is the underlying HS subheading; the full Schedule B number is ten.
Schedule B vs. HTS vs. ECCN
Exporters routinely confuse three different “numbers.” They answer different questions:
| Code | Question it answers | Authority |
|---|---|---|
| Schedule B | How is this product classified for export reporting? | Census Bureau |
| HTS (HTSUS) | What duty applies when this product is imported into the U.S.? | U.S. International Trade Commission |
| ECCN | Is this product subject to export controls / licensing? | Bureau of Industry and Security |
A practical shortcut: for most commercial exports, you may report either the Schedule B number or the 10-digit HTS number — Census accepts both for the commodity line. But the HTS and Schedule B are not interchangeable in every case, because the HTS has import-specific breakouts that don’t exist for exports. The ECCN is a separate determination entirely; see our guide to Export Control Classification Numbers.
How to Assign the Right Schedule B Number
Classification follows the structure of the schedule, top down:
- Identify the product precisely — what it is made of, what it does, and how it is presented for sale. Composition and function drive classification.
- Use the Census Schedule B Search tool. The Census Bureau publishes a free online Schedule B Search engine that walks you to a code from a plain-language description.
- Read the chapter and heading notes. They include and exclude specific goods and resolve most close calls.
- Document your reasoning. Keep a short classification record for each product so the basis is defensible if Census or CBP asks.
When a product is genuinely ambiguous — a multi-component article, a new technology, a kit — do not guess. The classification logic mirrors the import-side rules explained in our HTS classification guide, where the General Rules of Interpretation control.
Why the Right Code Matters
The exporter is responsible for the accuracy of its export filings. A wrong Schedule B number can mean misreported trade statistics, a rejected or delayed AES filing, loss of a trade-agreement preference your buyer was counting on, and — where the error masks a controlled item — a substantive export-control violation. Census and the Bureau of Industry and Security can assess civil penalties for inaccurate filings, so the few minutes spent classifying correctly is cheap insurance.
Frequently Asked Questions
How many digits is a Schedule B number?
Ten. The first six are the international Harmonized System subheading; the last four are a U.S.-specific statistical extension assigned by the Census Bureau.
Who assigns Schedule B numbers?
The U.S. Census Bureau administers the Schedule B and publishes a free Schedule B Search tool. The exporter (or its authorized agent) selects the correct code for each product; Census does not assign it for you.
What is the difference between Schedule B and HTS codes?
Schedule B classifies U.S. exports; the HTS classifies imports into the U.S. and sets duty rates. They share the same first six digits. For many exports you may report the 10-digit HTS number in place of the Schedule B, but not in every case.
Do I need a Schedule B number to export?
Yes, if your shipment requires Electronic Export Information — generally when the value of goods under a single classification exceeds $2,500, or when an export license is required. The Schedule B (or HTS) number is a required field in that filing.
Correct classification is the foundation of a compliant export program. Reidel Law Firm advises U.S. exporters on classification, AES filings, and export-control screening on flat-fee terms. Get an export compliance memo.
