EPA Frees Frankenstein Corn Protein from Pesky Residue Rules
Published Date: 2/25/2025
Rule
Summary
The EPA just gave a green light to Pioneer Hi-Bred International by exempting the Bacillus thuringiensis Cry1B.34 protein from residue limits on corn products. This means farmers and food makers can use this protein in corn without worrying about strict residue rules, starting February 25, 2025. If anyone wants to object or request a hearing, they have until April 28, 2025, to speak up—no extra costs or delays expected!
Analyzed Economic Effects
2 provisions identified: 2 benefits, 0 costs, 0 mixed.
Cry1B.34 Residues Exempted on Corn
Starting February 25, 2025, residues of the Bacillus thuringiensis Cry1B.34 protein are exempt from the requirement of a tolerance in or on corn, field; corn, sweet; and corn, pop when used as a plant-incorporated protectant. This means growers, food processors, and pesticide makers do not need a numerical maximum residue level for Cry1B.34 on those corn commodities.
No Enforcement Test Required; ELISA Available
EPA determined an analytical enforcement method is not required because there is an exemption without a numerical limit, though a valid ELISA test for detecting Cry1B.34 in corn tissues was submitted and is available. Businesses will not face a federal requirement to perform residue testing for enforcement of Cry1B.34 tolerances on the exempted corn commodities.
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