# 2-methyl-2,4-pentanediol; Exemption from the Requirement of a Tolerance
> **Rule** · Final rule. · Published 2011-06-22 · Effective 2011-06-22 · 76 FR 36342
## Document
- **Document number:** 2011-15466
- **Category:** pesticide
- **Federal Register citation:** 76 FR 36342
- **CFR reference:** 40 CFR 180
- **Publication date:** 2011-06-22
- **Effective date:** 2011-06-22
- **EPA docket:** EPA-HQ-OPP-2010-0330
## Abstract

This regulation establishes an exemption from the requirement of a tolerance for residues of 2-methyl-2,4-pentanediol (CAS Reg. No. 107-41-5) when used as an inert ingredient as a solvent in pesticide formulations 40 CFR 180.910 and 180.930 for use on crops (pre-harvest and post-harvest) and for direct application on animals without limitations. 2-methyl-2,4-pentanediol is commonly referred to as "hexylene glycol". The FB Sciences, Inc., 153 N. Main Street, Suite 100, Collierville, TN 38017 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 2-methyl-2,4-pentanediol.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2011/06/22/2011-15466/2-methyl-24-pentanediol-exemption-from-the-requirement-of-a-tolerance)
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