# Polyethylhexyl Glycidyl Ether Polyethylene Oxide Copolymer in Pesticide Formulations; Exemption From the Requirement for a Tolerance
> **Rule** · Final rule. · Published 2026-04-10 · Effective 2026-04-10 · 91 FR 18294
## Document
- **Document number:** 2026-06953
- **Category:** pesticide
- **Federal Register citation:** 91 FR 18294
- **CFR reference:** 40 CFR 180
- **Publication date:** 2026-04-10
- **Effective date:** 2026-04-10
- **EPA docket:** EPA-HQ-OPP-2025-0155
## Abstract

This regulation establishes an exemption from the requirement of a tolerance for residues of polyethylhexyl glycidyl ether polyethylene oxide copolymer (CAS Reg. No. 82780-16-3) when used as an inert ingredient (wetting agent or surfactant) on growing crops and raw agricultural commodities pre- and post-harvest limited to no more than 10% by weight of the pesticide formulation. Spring Regulatory Sciences on behalf of Ashland Specialty Ingredients G.P. 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 polyethylhexyl glycidyl ether polyethylene oxide copolymer, when used in accordance with the terms of the exemption.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2026/04/10/2026-06953/polyethylhexyl-glycidyl-ether-polyethylene-oxide-copolymer-in-pesticide-formulations-exemption-from)
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