U.S. EPA Finalizes Repeal of 1995 ‘Once In, Always In’ Policy for Major Air Pollution Sources
The U.S. Environmental Protection Agency on Oct. 1 finalized a rule allowing a major source of hazardous air pollutants to reclassify as an “area source,” a less stringent category under the Clean Air Act, any time it implements measures to limit emissions. The action implements the agency’s 2018 guidance that withdrew the 1995 “Once In,…...