Ohio Manufacturers' Association
09/12/2025 | Press release | Distributed by Public on 09/12/2025 08:09
Update on US EPA’s Rule on Reclassification of Hazardous Air Pollutant Sources
OMA Connections Partner BSI provides an update
on what's happening with the EPA's Clean Air Act rule governing reclassification of hazardous air pollutant (HAP) sources. For decades, facilities labeled "major sources" had to meet strict Maximum Achievable Control Technology standards under the "Once In, Always In" policy. EPA's 2024 rule would have required certain facilities tied to seven high-priority HAPs to maintain those standards even after lowering emissions and reclassifying as "area sources."
Congress overturned the rule in June 2025, though EPA is still considering future regulatory actions. 9/11/2025
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