Schedule B and HTS (HS) Codes

The Harmonized System

Export codes, also known as Schedule B numbers, are administered by the U.S. Census Bureau.

All import and export codes used by the United States are based on the Harmonized System (HS). The HS assigns 6-digit codes for general categories. This 6-digit code is known as the Harmonized System number.

Countries that use the HS are allowed to define commodities at a more detailed level than 6-digits, however all definitions must be within that 6-digit framework. The U.S., for example, defines products using 10-digit codes in its Harmonized Tariff Schedule (HTS).

Import codes are administered by the U.S. International Trade Commission (USITC).

Harmonized System (HS) and Schedule B numbers

Harmonized System (HS) numbers are used to classify products for customs purposes. By international agreement, most countries recognize the same first 6 "harmonized" digits.

To get a duty rate, one needs to have the complete product number used by the importing country. Since this is sometimes difficult, companies can use the Schedule B number to approximate.

Schedule B Numbers are used to classify exported products in the United States and are based on the international HS system. HS numbers and Schedule B numbers will be the same up to the first 6 digits as the importing country's classification code.

Why you need to know your product’s Schedule B and HS numbers

Exporters need to know their product’s Schedule B and HS numbers for the following reasons:

1. To determine applicable import tariff rates and whether a product qualifies for a preferential tariff under a Free Trade Agreement;

2. The Schedule B number is needed to complete the Shipper’s Export Declaration, Certificates of Origin and other shipping documents; and

3. The HS Number may be needed on shipping documents, such as certificates of origin

How to identify your product’s Schedule B number

The Census Bureau sponsors a free online tool called the Schedule B Search Engine. The Schedule B search tool is the most commonly used method for classifying products. Click "search" and enter a "descriptive keyword" that best describes your product.

(If you require assistance with the search engine, please contact the Census Bureau toll free at 1-800-549-0595.)

After consulting the Search Engine, you can obtain further assistance on Schedule B numbers from a commodity specialist at the U.S. Census Bureau Foreign Trade Division:

  • goods (metals, machinery, computer, electronic and other miscellaneous goods) call: 301-763-3259
  • goods (food, animal, wood, paper, mineral, chemical and textile goods) call: 301-763-3484For assistance identifying your appropriate HS number you may also contact your local Export Assistance Center or call the Trade Information Center at 1-800-USATRAD(E).

The Census Bureau produces The Schedule B: Statistical Classification of Domestic and Foreign Commodities Exported from the United States that can be ordered from the Government Printing Office by calling 202-512-1800. The stock number is 903-009-00000-4. The CD-ROM version can also be purchased from the Census Bureau by calling 301-457-1086.

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