EPA Lets Bayer Choose Dicamba Regulations, Documents Show

The U.S. Environmental Protection Agency (EPA) has revealed, through newly released internal documents, that it allowed pesticide manufacturer Bayer to select from a menu of regulatory options for the herbicide dicamba before drafting a proposed federal rule. The documents detail the agency’s process of presenting Bayer with a range of potential restrictions, receiving the company’s preferences, and incorporating those choices into the rulemaking draft. This level of transparency is unusual, as the development of pesticide regulations is normally conducted behind closed doors.

The EPA’s approach to dicamba—a controversial and often destructive weedkiller—highlights the agency’s willingness to involve industry stakeholders in shaping the final regulatory framework. By giving Bayer a say in the rule options, the EPA aimed to balance the company’s commercial interests with public and environmental concerns. The proposed rule will now be subject to public comment and further review before it can become law.

The release of these internal communications offers a rare glimpse into the EPA’s rule‑making mechanics and underscores the importance of transparency in environmental regulation. The agency will continue to refine the dicamba rule based on stakeholder input and scientific assessment, with the goal of ensuring effective weed control while minimizing ecological impacts.