HTS heading 3507: Enzymes; prepared enzymes not elsewhere specified or included
Heading 3507 of the US Harmonized Tariff Schedule covers Enzymes; prepared enzymes not elsewhere specified or included. Below: every rated tariff line in it with its general duty rate, Section 301 China status and exclusions, then a page per line with a free duty calculator.
Heading 3507 at a glance
- 3 rated tariff lines; 3 duty-free at the general (MFN) rate.
- Section 301 (products of China): 3 of 3 lines on a list in effect (List 3).
Goods named in this heading (official line texts): Rennet and concentrates thereof, Pencillin G amidase.
Subheadings (6-digit)
All tariff lines in heading 3507
| Line | Description | General | Section 301 (China) | Exclusions |
|---|---|---|---|---|
| 3507.10.00 | Rennet and concentrates thereof | Free | List 3 +25% | |
| 3507.90.20 | Other: Pencillin G amidase | Free | List 3 +25% | |
| 3507.90.70 | Other: Other | Free | List 3 +25% |
All of chapter 35 · Chapter 35 rate summary · HTS lookup
General information from the official US Harmonized Tariff Schedule (USITC) and USTR Section 301 notices in HTS Chapter 99; not legal or customs advice. Classification is decided by CBP; confirm with a licensed customs broker or a CBP binding ruling.
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