# Castor Oil, Polymer With 2-Ethylhexanol, Maleic Anhydride and Soybean Oil, Sodium Salt in Pesticide Formulations: Tolerance Exemption
> **Rule** · Final rule. · Published 2025-11-17 · Effective 2025-11-17 · 90 FR 51123
## Document
- **Document number:** 2025-19915
- **Category:** pesticide
- **Federal Register citation:** 90 FR 51123
- **CFR reference:** 40 CFR 180
- **Publication date:** 2025-11-17
- **Effective date:** 2025-11-17
- **EPA docket:** EPA-HQ-OPP-2025-0079
## Abstract

This regulation establishes an exemption from the requirement of a tolerance for residues of castor oil, polymer with 2-ethylhexanol, maleic anhydride and soybean oil, sodium salt (CAS No. 3057850-65-1) minimum number average molecular weight 4571; when used as an inert ingredient in a pesticide chemical formulation under 40 CFR 180.960. Under the Federal Food, Drug, and Cosmetic Act (FFDCA), Spring Regulatory Sciences on behalf of Ashland Specialty Ingredients G.P. submitted a petition to EPA requesting an exemption from the requirement of a tolerance. This regulation eliminates the need to establish a maximum permissible level for residues of castor oil, polymer with 2-ethylhexanol, maleic anhydride and soybean oil, sodium salt on food or feed commodities when used in accordance with these exemptions.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2025/11/17/2025-19915/castor-oil-polymer-with-2-ethylhexanol-maleic-anhydride-and-soybean-oil-sodium-salt-in-pesticide)
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