# Polyurethane-Type Polymers; Tolerance Exemption
> **Rule** · Final rule. · Published 2013-09-11 · Effective 2013-09-11 · 78 FR 55641
## Document
- **Document number:** 2013-22104
- **Category:** pesticide
- **Federal Register citation:** 78 FR 55641
- **CFR reference:** 40 CFR 180
- **Publication date:** 2013-09-11
- **Effective date:** 2013-09-11
- **EPA docket:** EPA-HQ-OPP-2013-0284
## Abstract

This regulation establishes an exemption from the requirement of a tolerance for residues of polymers produced by the reaction of either 1,6-hexanediisocyanate; 2,4,4-trimethyl-1,6-hexanediisocyanate; 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethyIcyclohexane (isophoronediisocyanate); 4,4'-methylene-bis-1,1'- cyclohexanediisocyanate; 4,4'-methylene-bis-1,1' benzyldiisocyanate; or 1,3-bis-(2-isocyanatopropan-2-yl)benzene with polyethyleneglycol and end-capped with one or a mixture of more than one of octanol, decanol, dodecanol, tetradecanol, hexadecanol, octadecanol, and octadec-9-enol or polyethyleneglycol ethers of octanol, decanol, dodecanol, tetradecanol, hexadecanol, octadecanol, and octadec-9-enol (also known as polyurethane-type polymers), when used as an inert ingredient in a pesticide chemical formulation. Syngenta Crop Protection, LLC 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 polyurethane-type polymers on food or feed commodities.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2013/09/11/2013-22104/polyurethane-type-polymers-tolerance-exemption)
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