The U.S. Environmental Protection Agency (EPA) this week proposed revisions to a Biden-era ozone rule that the agency says created unnecessary planning requirements for states even after areas were reclassified under federal air quality standards.

The proposal is welcome news for manufacturers operating in Ohio, where permitting timelines, compliance obligations and regulatory certainty all affect investment and growth. Clearer, more flexible state implementation rules would help ensure air quality planning reflects current conditions rather than outdated classifications.

“Ohio manufacturers support clean air, but clean air policy should be clear, workable and tied to actual conditions,” said James Lee, managing director of public policy services for the Ohio Manufacturers’ Association. “This proposal would give Ohio more flexibility, reduce unnecessary administrative burdens and help regulators focus resources where they can do the most good.”

EPA said the proposal would apply to past and future reclassifications under the 2008, 2015 and future ozone standards. The agency will hold a 30-day public comment period. 6/9/2026