# Esfenvalerate; Pesticide Tolerance
> **Rule** · Final rule. · Published 1998-09-11 · Effective 1998-09-11 · 63 FR 48607
## Document
- **Document number:** 98-24770
- **Category:** air-emissions
- **Federal Register citation:** 63 FR 48607
- **CFR reference:** 40 CFR 180
- **Publication date:** 1998-09-11
- **Effective date:** 1998-09-11
- **EPA docket:** OPP-300708
## Abstract

This regulation establishes tolerances for residues of esfenvalerate, ((S)-cyano-(3-phenoxyphenyl)methyl (S)-4-chloro-alpha- (1-methylethyl) benzeneacetate in or on the raw agricultural commodities mustard greens at 5.0 parts per million (ppm), kiwifruit at 0.5 ppm, globe artichoke at 1.0 ppm, and kohlrabi at 2.0 ppm. Esfenvalerate is the S,S-isomer of fenvalerate which consists of a racemic mixture of four isomers (S,S;R,S;S,R; and RR). Technical grade esfenvalerate, Asana, the only fenvalerate formulation sold in the United States for agricultural use at this time, is enriched in the insecticidally active S,S-isomer (84%). Tolerance expressions for esfenvalerate are based on the sum of all isomers. The Interregional Research Project Number 4 (IR-4) requested this tolerance under the Federal Food, Drug, and Cosmetic Act (FFDCA), as amended by the Food Quality Protection Act of 1996 (Pub. L. 104-170).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1998/09/11/98-24770/esfenvalerate-pesticide-tolerance)
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