The Environmental Protection Agency announced the establishment of an exemption from the requirement of a tolerance for residues of iron oxide when used as an inert ingredient (colorant) in pesticide formulations applied to animals. The regulatory change comes in response to a petition submitted to the EPA by the U.S. Department of Agriculture’s Animal and Plant Health Inspection Service. This regulation eliminates the need to establish a maximum permissible level for residues of iron oxide when used in accordance with the terms of that exemption. The regulation is effective December 22, 2022, and objections or requests for hearings must be submitted to the EPA by February 21, 2023.
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