# Spiromesifen; Pesticide Tolerances
> **Rule** · Final rule. · Published 2010-02-03 · Effective 2010-02-03 · 75 FR 5522
## Document
- **Document number:** 2010-2144
- **Category:** pesticide
- **Federal Register citation:** 75 FR 5522
- **CFR reference:** 40 CFR 180
- **Publication date:** 2010-02-03
- **Effective date:** 2010-02-03
- **EPA docket:** EPA-HQ-OPP-2008-0262
## Abstract

This regulation establishes tolerances for the inadvertent or indirect combined residues of spiromesifen (2-oxo-3-(2,4,6- trimethylphenyl)-1-oxaspiro[4.4]non-3-en-4-yl 3,3-dimethylbutanoate) its enol metabolite (4-hydroxy-3-(2,4,6-trimethylphenyl)-1- oxaspiro[4.4]non-3-en-2-one), and its metabolites containing the 4- hydroxymethyl moiety (4-hydroxy-3-[4-(hydroxymethyl)-2,6- dimethylphenyl]-1-oxaspiro[4.4]non-3-en-2-one), calculated as the parent compound equivalents, in or on the following commodities from crops grown as rotational crops: bulb vegetables. Bayer CropScience requested these tolerances under the Federal Food, Drug, and Cosmetic Act (FFDCA).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2010/02/03/2010-2144/spiromesifen-pesticide-tolerances)
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