# 2026-13185: EPA Quietly Tweaks Pesticide Limits on Barley and Oats

2026-13185, Chlormequat Chloride; Pesticide Tolerances, is a Federal Register rule from Environmental Protection Agency published 2026-06-30, effective 2026-06-30; PRIA reads it as touching household money (as of 2026-07-07).

- Canonical: https://policyrisk.com/federal-register/2026-13185
- As of: 2026-07-07
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2026-13185
- Title: Chlormequat Chloride; Pesticide Tolerances
- Type: Rule
- Agencies: Environmental Protection Agency
- Citation: 91 FR 39489
- Published: 2026-06-30
- Effective: 2026-06-30
- Comments close: not stated
- Significant: no
- Touches household money: yes
- Regulation identifier numbers: none
- Last updated: 2026-07-07

## In one line

EPA Quietly Tweaks Pesticide Limits on Barley and Oats

## Summary

The EPA just updated the legal limits for chlormequat chloride pesticide residues on barley, oats, wheat, and some animal products. Farmers, food makers, and pesticide companies need to know these new rules start June 30, 2026. If anyone wants to object or ask for a hearing, they must do so by August 31, 2026—no delays!

## Abstract

This regulation modifies existing tolerances for residues of chlormequat chloride in or on barley, oats, triticale, and wheat grains; and in or on multiple food and livestock commodities that are identified and will be discussed in detail later in this document. Taminco US LLC, a subsidiary of Eastman Chemical Company, requested these tolerances under the Federal Food, Drug, and Cosmetic Act (FFDCA).

## Effects PRIA read

- New residue limits for foods: mixed, medium. The EPA changed legal limits (tolerances) for chlormequat chloride residues on many food and livestock commodities effective June 30, 2026. Examples in the rule include barley grain at 8 parts per million (ppm), oat grain at 40 ppm, wheat grain at 5 ppm, milk at 0.5 ppm, and eggs at 0.1 ppm.
- Temporary hog tolerances expire: cost, low. The tolerances for chlormequat chloride on hog meat and hog meat byproducts include a footnote that those tolerances expire December 30, 2026. Producers and processors handling hog meat or hog meat byproducts will need to note the December 30, 2026 expiration.
- Five‑year residue data requirement: cost, medium. EPA will require data to be submitted demonstrating that residue levels in food are not above the levels anticipated, and that data must be submitted no later than 5 years from the date of issuance of these tolerances. EPA said it will issue any necessary data call‑ins under FFDCA section 408(f)(1).
- Infant/child safety determination: benefit, low. EPA concluded the acute dietary risk for infants is 22% of the acute population adjusted dose (aPAD) and maintained the Food Quality Protection Act safety factor reduction from 10X to 1X for chlormequat chloride. The rule states EPA found a reasonable certainty of no harm for infants and children u…

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## Sources
- [2026-13185 on federalregister.gov](https://www.federalregister.gov/documents/2026/06/30/2026-13185/chlormequat-chloride-pesticide-tolerances)
- [2026-13185 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-06-30/pdf/2026-13185.pdf)

## Related
- [Previous: 2026-13180, Diflufenican; Pesticide Tolerances](https://policyrisk.com/federal-register/2026-13180)
- [Next: 2026-13193, Epyrifenacil; Pesticide Tolerances](https://policyrisk.com/federal-register/2026-13193)
- [All Federal Register documents](https://policyrisk.com/federal-register)

Source: PRIA, https://policyrisk.com/federal-register/2026-13185 (as of 2026-07-07).