HTS heading 3811: Antiknock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers, anti-corrosive preparations and other prepared additives, for mineral oils (i
Heading 3811 of the US Harmonized Tariff Schedule covers 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. Below: every rated tariff line in it with its general duty rate, Section 301 China status and exclusions, then a page per line with a free duty calculator.
Heading 3811 at a glance
- 6 rated tariff lines; 2 duty-free at the general (MFN) rate.
- Ad valorem general rates from 6.5% to 6.5%.
- Section 301 (products of China): 6 of 6 lines on a list in effect (List 2, List 3).
Goods named in this heading (official line texts): Based on tetraethyl lead or on a mixture of tetraethyl lead and tetramethyl lead, Containing petroleum oils or oils obtained from bituminous minerals.
Subheadings (6-digit)
- 3811.11: Based on lead compounds (2 lines)
- 3811.19: Antiknock preparations (1 line)
- 3811.21: Additives for lubricating oils (1 line)
- 3811.29: Additives for lubricating oils (1 line)
- 3811.90: Antiknock preparations, oxidation inhibitors, gum inhibitors, viscosity improver…: Other (1 line)
All tariff lines in heading 3811
| Line | Description | General | Section 301 (China) | Exclusions |
|---|---|---|---|---|
| 3811.11.10 | Based on tetraethyl lead or on a mixture of tetraethyl lead and tetramethyl lead | Free | List 3 +25% | |
| 3811.11.50 | Based on lead compounds: Other | Free | List 3 +25% | |
| 3811.19.00 | Antiknock preparations: Other | 6.5% | List 3 +25% | |
| 3811.21.00 | Containing petroleum oils or oils obtained from bituminous minerals | 6.5% | List 2 +25% | |
| 3811.29.00 | Additives for lubricating oils: Other | 6.5% | List 2 +25% | |
| 3811.90.00 | Antiknock preparations, oxidation inhibitors, gum inhibitors, viscosity improver…: Other | 6.5% | List 3 +25% |
All of chapter 38 · Chapter 38 rate summary · HTS lookup
General information from the official US Harmonized Tariff Schedule (USITC) and USTR Section 301 notices in HTS Chapter 99; not legal or customs advice. Classification is decided by CBP; confirm with a licensed customs broker or a CBP binding ruling.
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