# Tristyrylphenol Ethoxylates (CAS Reg. No. 70559-25-0) and (CAS Reg. No. 99734-09-5); Exemption from the Requirement of a Tolerance
> **Rule** · Final rule. · Published 2009-03-25 · Effective 2009-03-25 · 74 FR 12621
## Document
- **Document number:** E9-6259
- **Category:** pesticide
- **Federal Register citation:** 74 FR 12621
- **CFR reference:** 40 CFR 180
- **Publication date:** 2009-03-25
- **Effective date:** 2009-03-25
- **EPA docket:** EPA-HQ-OPP-2008-0095
## Abstract

This regulation establishes an exemption from the requirement of a tolerance for residues of poly(oxy-1,2-ethanediyl), [alpha]- [2,4,6-tris(1-phenylethyl)phenyl]-[omega]-hydroxy- (CAS Reg. No. 70559- 25-0) and poly(oxy-1,2-ethanediyl), [alpha]-[tris(1- phenylethyl)phenyl]-[omega]-hydroxy-, (CAS Reg. No. 99734-09-5), herein referred to in this document as tristyrylphenol ethoxylates when used as inert ingredients in post-harvest applications to citrus crops, group 10, under 40 CFR 180.1288 at a maximum of 10.0% in pesticide formulations with azoxystrobin and fludioxonil. Syngenta Crop Protection, Inc. 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 the tristyrylphenol ethoxylates.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2009/03/25/E9-6259/tristyrylphenol-ethoxylates-cas-reg-no-70559-25-0-and-cas-reg-no-99734-09-5-exemption-from-the)
---
*AI Analytics · CC0 1.0*