Heading 3811 · Antiknock preparations, oxidation inhibitors, gum inhibitors, viscosity…
3811.11
Antiknock preparations, oxidation inhibitors, gum… — Based on lead compounds:
Mentioned in Chapter 99
The parts of Chapter 99, in the 2026 HTS Revision 22, that list HTS 3811.11, a broader code that includes it, or a narrower code within it.
| U.S. note | Excerpt | Headings that refer to it |
|---|---|---|
| U.S. note 20(f) | (f) Heading 9903.88.03 applies to all products of China that are classified in the following 8-digit subheadings, except products of China granted an exclusion by the U.S. Trade Representative and provided for in (1) heading 9903.88.13 and… | 9903.88.03, 9903.88.09 |
Being listed is not owing a duty. A note may list goods that a measure leaves out; whether a heading applies depends on the origin, the date and the product; and the measures on all the goods of a country list no code at all. The calculator says what applies.
In the tariff
- 3811Antiknock 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
- 3811.11Based on lead compounds
- 3811.11.10.00Based on tetraethyl lead or on a mixture of tetraethyl lead and tetramethyl leadFree
- 3811.11.50.00OtherFree