Air Emissions and Permitting Compliance News

On January 25, the US Environmental Protection Agency (EPA) issued a guidance memorandum withdrawing the "once in always in" policy for the classification of major sources of hazardous air pollutants under section 112 of the Clean Air Act. With the new guidance, sources of hazardous air pollutants previously classified as "major sources" may be reclassified as "area" sources when the facility limits its potential to emit below major source thresholds. ...

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