Analysis
HTS 4001.22.00 covers technically specified natural rubber (TSNR) under heading 4001 (natural rubber, balata, gutta-percha, guayule, chicle and similar natural gums, in…). US Customs collects import statistics for it under 6 ten-digit suffixes, reported in kilograms.
This line's footnotes point to one additional provision in Chapter 99: 9903.90.08 (measures on products of Russia). Chapter 99 duties are added on top of the general rate for goods of the countries they name, and they change more often than the rest of the schedule, so check the current CBP guidance before you rely on a total.
Goods classified here enter the United States duty-free at the general (normal trade relations) rate, as do about 39% of the 142 tariff lines in chapter 40. 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 ten-digit suffixes separate grade 5, grade CV, grade L, grade 10 and grade 20. The duty is the same across them; the suffix matters for statistics, licensing and some quotas, and an entry needs all ten digits.
Statistical suffixes
Neighbouring lines
| Line | Description | General rate |
|---|---|---|
| 4001.10.00 | Natural rubber latex, whether or not pre-vulcanized | Free |
| 4001.21.00 | Natural rubber in other forms: smoked sheets | Free |
| 4001.29.00 | Natural rubber in other forms: other | Free |
| 4001.30.00 | Balata, gutta-percha, guayule, chicle and similar natural gums | Free |
Chapter 99 provisions in the footnotes
- 9903.90.08 measures on products of Russia
Articles the product of the Russian Federation, as provided for in U.S. note 30(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 30(b) to this subchapter