What is Chapter 99 of the HTS?

Tariffs and customs glossary · 1 primary source

The part of the tariff schedule that holds temporary and additional duties, such as Section 301 and Section 232, as their own 9903 headings.

Chapter 99 is titled "Temporary legislation; temporary modifications proclaimed pursuant to trade agreements legislation; additional import restrictions". Instead of changing the rate on thousands of product lines, an additional duty is written as a Chapter 99 heading whose notes list the product codes it covers.

On the entry the importer reports the Chapter 99 number together with the product's normal 10-digit code. The duty owed is the normal rate plus the Chapter 99 rate. Exclusions are also written as their own Chapter 99 headings.

Sources

Harmonized Tariff Schedule (USITC), Chapter 99

Related terms

Section 301 tariffsAdditional US duties imposed under Section 301 of the Trade Act of 1974 in response to a foreign country's unfair trade practices; best known for the tariffs on goods from China since 2018.
Section 232 tariffsDuties or quotas the President can impose under Section 232 of the Trade Expansion Act of 1962 when imports are found to threaten US national security.
HTS codeA 10-digit number from the Harmonized Tariff Schedule of the United States (HTSUS) that classifies an imported product and decides its duty rate.

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