# HTS 3507: Enzymes; prepared enzymes not elsewhere specified or included:

> Plain-language tariff reference from the USITC Harmonized Tariff Schedule on [PlainTariff](https://plaintariff.com/).

## Duty rates

- **General (MFN) rate:** Free

## Classification path

- **Section VI:** [Products of the Chemical or Allied Industries](https://plaintariff.com/section/vi-products-of-the-chemical-or-allied-industries)
- **Chapter 35:** [Albuminoidal substances; modified starches; glues; enzymes](https://plaintariff.com/chapter/chapter-35-albuminoidal-substances-modified-starches-glues-enzymes)
- **HTS code:** 3507

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- [Tariff calculator](https://plaintariff.com/tools/tariff-calculator)
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- [Methodology & sources](https://plaintariff.com/methodology)

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*Source: U.S. International Trade Commission Harmonized Tariff Schedule. HTML canonical: https://plaintariff.com/heading/3507-enzymes-prepared-enzymes-not-elsewhere-specified-or-include*