Analysis
Subheading 7315.20 covers skid chain, within heading 7315. 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: 7315.20.10 for not over 8 mm in diameter (duty-free) and 7315.20.50 for over 8 mm in diameter (duty-free).
By Census's concordance, most of its statistical lines are made by Other Fabricated Wire Product Manufacturing (332618). Those are the NAICS industries a US producer of these goods would report under.
Goods only reach 7315.20 once they fall within heading 7315 (chain and parts thereof, of iron or steel). 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 |
|---|---|---|
| 7315.20.10 | Not over 8 mm in diameter | Free |
| 7315.20.50 | Over 8 mm in diameter | Free |