Analysis
HTS 6310.10.10 covers of wool or fine animal hair under heading 6310 (used or new rags, scrap twine, cordage, rope and cables, and worn out articles of twine…).
The normal trade relations rate here is zero, shared by about 14% of the 98 tariff lines in chapter 63, a useful check when a neighbouring dutiable line is a candidate. Duty-free at the general rate does not rule out additional duties under Chapter 99, such as Section 301 or Section 232 measures, which depend on the country of origin.
The other lines in the same group are 6310.10.20 (sorted: other, duty-free), 6310.90.10 (of wool or fine animal hair, 5.5¢/kg) and 6310.90.20 (other: other, duty-free).
All 3 neighbouring lines carry the same duty-free rate, so a borderline choice between them changes the statistics reported, not the duty paid.
Every edition we compared, from Jan 2023 to Oct 2026 (Rev. 22), shows the same general rate of Free.
Neighbouring lines
| Line | Description | General rate |
|---|---|---|
| 6310.10.20 | Sorted: other | Free |
| 6310.90.10 | Of wool or fine animal hair | 5.5¢/kg |
| 6310.90.20 | Other: other | Free |