Environmentalists threaten suit over California, Colorado ozone plans

November 20, 2020
The environmental groups Center for Biological Diversity (CBD) and Center for Environmental Health are threatening EPA with a lawsuit over its failure to approve or disapprove state plans for attaining ozone national ambient air quality standards (NAAQS) in California and Colorado. In a Nov. 18 letter giving EPA 60 days’ notice of their intent to sue the agency in federal court, the groups say EPA has missed Clean Air Act deadlines to approve or deny the state implementation plans for...


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