Analysis
Subheading 3811.11 covers based on lead compounds, within heading 3811. The first six digits are shared by every country that uses the Harmonized System, so this part of the code is the same in the US, UK and EU schedules; the 2 US tariff lines below it are national.
Every one of its 2 tariff lines is duty-free at the general rate, so classification within the subheading affects statistics and Chapter 99 measures rather than the base duty.
The US splits it as follows: 3811.11.10 for based on tetraethyl lead or on a mixture of tetraethyl lead and… (duty-free) and 3811.11.50 for based on lead compounds: other (duty-free).
By Census's concordance, most of its statistical lines are made by All Other Miscellaneous Chemical Product and Preparation Manufacturing (325998). Those are the NAICS industries a US producer of these goods would report under.
Goods only reach 3811.11 once they fall within heading 3811 (antiknock preparations, oxidation inhibitors, gum inhibitors, viscosity improvers…). Under General Rule 6, subheadings are then compared only with others at the same level, so a product is matched against its siblings, not against lines elsewhere in the chapter.
Tariff lines
| Line | Description | General rate |
|---|---|---|
| 3811.11.10 | Based on tetraethyl lead or on a mixture of tetraethyl lead and tetramethyl lead | Free |
| 3811.11.50 | Based on lead compounds: other | Free |