EPA Caps Carboxin on Crops: Safe Food, No Big Costs!
Published Date: 8/21/2026
Rule
Summary
The EPA just set safe limits for carboxin pesticide residues on several crops, helping farmers, food makers, and pesticide producers know the rules. This new rule kicks in on August 21, 2026, and anyone wanting to object has until October 20, 2026, to speak up. No big costs are expected, just clearer safety standards to keep our food safe and sound!
Analyzed Economic Effects
5 provisions identified: 2 benefits, 3 costs, 0 mixed.
Infants Use 87% of Safety Limit
EPA's chronic exposure estimate shows that all infants under 1 year old use 87% of the chronic population-adjusted dose (cPAD) for carboxin under the assessed food and drinking water scenarios. EPA concluded that chronic exposures at this level are "not of concern" and determined the tolerances are safe.
FQPA Safety Factor Set to 1X
For dietary exposure scenarios, EPA set the Food Quality Protection Act (FQPA) safety factor for infants and children to 1X. EPA states this applies to current uses and would also apply to any future non-occupational/residential uses except inhalation scenarios.
New Carboxin Residue Limits
If you are an agricultural producer, food manufacturer, or pesticide maker, EPA established legal residue limits for carboxin on three crop subgroups effective August 21, 2026: Vegetable, legume, forage and hay, except soybean, subgroup 7-22A at 2 parts per million (ppm); Vegetable, legume, pulse, bean, dried shelled, except soybean, subgroup 6-22E at 0.2 ppm; and Vegetable, legume, pulse, pea, dried shelled, subgroup 6-22F at 0.2 ppm. These are the maximum permissible residue levels you must meet when selling or processing those commodities.
Removal of Bean, Dry Seed Tolerance
EPA removed the existing tolerance for "Bean, dry, seed" at 0.2 ppm because that commodity is now covered by the new tolerance for Vegetable, legume, pulse, bean, dried shelled, except soybean, subgroup 6-22E at 0.2 ppm. This change is effective August 21, 2026 and consolidates the tolerance entries.
Analytical Methods and LOQ Limits
EPA states that enforcement methods exist for measuring carboxin and metabolites, including colorimetric, gas-liquid chromatography (GLC), and GLC/mass selective detector methods. The residue data method limit of quantitation (LOQ) was 0.025 ppm while the enforcement analytical methods LOQ was 0.2 ppm, which EPA notes affects several tolerances set at 0.2 ppm.
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Key Dates
Department and Agencies
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