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Wehrum's Narrowing Of NSR 'Adjacency' Test Could Raise Bar For Permits

September 11, 2018
EPA is floating draft guidance that would narrow the definition of “adjacency” used as a factor in determining whether to combine nearby stationary sources for Clean Air Act new source review (NSR) permitting purposes, the latest in a series of steps that scale back NSR policy by making it easier for facilities to avoid strict “major” source permits. Under current EPA rules, regulators must use three factors to determine whether to combine facility emissions for permitting purposes: the operations must...

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