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HTS lookup › Chapter 38 › Heading 3811

HTS 3811.11 (3811.11.00) duty rate

3811.11.00 is not a rated tariff line. Subheading 3811.11 (Antiknock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (including gasoline) or for other liquids used for the same purposes as mineral oils › Antiknock preparations › Based on lead compounds) is split into 2 tariff lines, and the duty rate depends on which one your product falls under:

LineDescriptionGeneralSection 301 (China)Exclusions
3811.11.10Based on tetraethyl lead or on a mixture of tetraethyl lead and tetramethyl leadFreeList 3 +25%
3811.11.50Based on lead compounds: OtherFreeList 3 +25%

Open the line that matches your product for its full rate table, Section 301 actions, exclusions, statistical suffixes and a free duty calculator.

Official USITC HTS, 2026HTSRev22 · check on hts.usitc.gov

Subheading 3811.11 at a glance

Heading 3811 · Chapter 38 · HTS lookup

General information from the official US Harmonized Tariff Schedule (USITC); not legal or customs advice. Classification is decided by CBP.

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