Analysis
Heading 3908 of the Harmonized Tariff Schedule covers polyamides in primary forms. It divides into 2 six-digit subheadings and 3 eight-digit tariff lines, with 3 ten-digit statistical suffixes below them.
The spread of 6.5 percentage points between the cheapest and dearest lines makes misclassification expensive here. The highest rate, 6.5%, applies to 3908.90.70 (other: other).
1 of its 3 lines with a percentage rate are duty-free at the general rate (33%) and 2 are dutiable, from duty-free up to 6.5%. The median line pays 6.3%.
The largest subheadings are 3908.90 (other, 2 lines) and 3908.10 (unnamed, 1 line).
Its median rate of 6.3% sits at the 70th percentile of the headings in chapter 39.
By Census's concordance, most of its statistical lines are made by Plastics Material and Resin Manufacturing (325211). Those are the NAICS industries a US producer of these goods would report under.
Tariff lines
| Line | Description | General rate |
|---|---|---|
| 3908.10.00 | Polyamide-6, -11, -12, -6,6, -6,9, -6,10 or -6,12 | 6.3% |
| 3908.90.20 | Bis(4-amino-3-methylcyclohexyl)methane- isophthalic acid-laurolactam copolymer | Free |
| 3908.90.70 | Other: other | 6.5% |