3811Antiknock preparations, oxidation inhibitors, gum inhibitors
HTS Code 3811 covers any article best defined as Products of the Chemical or Allied IndustriesMiscellaneous chemical productsAntiknock 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: in the Harmonized Tariff Schedule — covering 5 sub-classifications.
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Relevant HTS Notes
Official USITC notes that may affect classification under HTS 3811.
Search CROSS Rulings for HTS 3811
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What does HTS code 3811 cover?
HTS code 3811 covers antiknock preparations, oxidation inhibitors, gum inhibitors (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:), classified under Chapter 38 (Miscellaneous chemical products) in the US Harmonized Tariff Schedule. There are 5 more specific sub-classifications under this code.
Primary Sources
The official documents behind the rates and tariffs on this page. Duties are worked out from them; check the legal text before you file.