Aluminum Now Officially Safe in Your Pesticide Seeds
Published Date: 5/22/2026
Rule
Summary
The EPA just made it official: aluminum can be used safely as a color ingredient in seed treatments without worrying about residue limits, as long as it’s no more than 5% of the pesticide mix. This change helps farmers, food makers, and pesticide companies by cutting red tape and speeding up product approvals. The rule kicks in on May 22, 2026, and anyone who wants to object has until July 21, 2026 to speak up.
Analyzed Economic Effects
3 provisions identified: 3 benefits, 0 costs, 0 mixed.
Regulatory relief for seed-treatment makers
The EPA now exempts aluminum (CAS No. 7429-90-5) used as a seed-treatment colorant from tolerance requirements when it is no more than 5% of the pesticide formulation. The change is intended to cut red tape and speed product approvals for agricultural, food, and pesticide companies.
5% limit — formulations must comply or be barred
EPA will allow aluminum as a seed-treatment inert ingredient only when it does not exceed 5% of the final pesticide formulation for seed treatment use. EPA will not register any pesticide formulation for food use that exceeds 5% aluminum in the final formulation for seed treatment.
EPA finds low dietary risk for children
EPA's assessment found chronic exposure from aluminum used under this exemption would use about 9.5% of the chronic population-adjusted dose (cPAD) for the U.S. population and about 34.3% of the cPAD for children 1–2 years old. EPA reduced the Food Quality Protection Act safety factor to 1X based on the available data.
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