# Polyoxyethylene polyoxypropylene mono(di-sec-butylphenyl) ether; Exemption from the Requirement of a Tolerance
> **Rule** · Final rule. · Published 2009-08-05 · Effective 2009-08-05 · 74 FR 38945
## Document
- **Document number:** E9-18717
- **Category:** pesticide
- **Federal Register citation:** 74 FR 38945
- **CFR reference:** 40 CFR 180
- **Publication date:** 2009-08-05
- **Effective date:** 2009-08-05
- **EPA docket:** EPA-HQ-OPP-2008-0944
## Abstract

This regulation establishes an exemption from the requirement of a tolerance for residues of Polyoxyethylene polyoxypropylene mono(di-sec-butylphenyl) ether when used as an inert ingredient in herbicide formulations only, for pre-harvest uses and at no more than 30% by weight in herbicide formulations intended for application to turf. The Joint Inerts Task Force (JITF), Cluster Support Team Number 20, submitted a petition to EPA under the Federal Food, Drug, and Cosmetic Act (FFDCA), requesting an exemption from the requirement of a tolerance. This regulation eliminates the need to establish a maximum permissible level for residues of Polyoxyethylene polyoxypropylene mono(di-sec-butylphenyl) ether.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2009/08/05/E9-18717/polyoxyethylene-polyoxypropylene-monodi-sec-butylphenyl-ether-exemption-from-the-requirement-of-a)
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