# Baicalin in Pesticide Formulations; Tolerance Exemption
> **Rule** · Final rule. · Published 2024-01-24 · Effective 2024-01-24 · 89 FR 4559
## Document
- **Document number:** 2024-01321
- **Category:** pesticide
- **Federal Register citation:** 89 FR 4559
- **CFR reference:** 40 CFR 180
- **Publication date:** 2024-01-24
- **Effective date:** 2024-01-24
- **EPA docket:** EPA-HQ-OPP-2023-0065
## Abstract

This regulation establishes an exemption from the requirement of a tolerance for residues of Baicalin anhydrous and Baicalin hydrate when used as inert ingredients (stabilizer) on growing crops pre- harvest, limited to a maximum concentration of 10% of the end-use formulation. Exponent, Inc. on behalf of UPL NA Inc. submitted a petition to EPA under the Federal Food, Drug, and Cosmetic Act (FFDCA), requesting establishment of an exemption from the requirement of a tolerance. This regulation eliminates the need to establish a maximum permissible level for residues of baicalin anhydrous and baicalin hydrate, when used in accordance with the terms of those exemptions.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2024/01/24/2024-01321/baicalin-in-pesticide-formulations-tolerance-exemption)
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