Analysis
Subheading 6003.30 covers of synthetic fibers, within heading 6003. 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.
The spread of 6.5 percentage points between the cheapest and dearest lines makes misclassification expensive here. The highest rate, 14.1%, applies to 6003.30.10 (open-work fabrics, warp knit (229)).
None of its 2 lines is duty-free at the general rate. Rates run from 7.6% to 14.1% with a median of 10.85%, so the line you choose sets the duty.
The US splits it as follows: 6003.30.10 for open-work fabrics, warp knit (229) (14.1%) and 6003.30.60 for of synthetic fibers: other (222) (7.6%).
By Census's concordance, most of its statistical lines are made by Knit Fabric Mills (313240). Those are the NAICS industries a US producer of these goods would report under.
Tariff lines
| Line | Description | General rate |
|---|---|---|
| 6003.30.10 | Open-work fabrics, warp knit (229) | 14.1% |
| 6003.30.60 | Of synthetic fibers: other (222) | 7.6% |