The Supreme Court of Montana will hear oral arguments in this matter on Wednesday, September 30, 2020, at 9:30 a.m. in the Mazurek Justice Building in Helena, Montana. This case challenges a key provision of Montana’s bedrock environmental law—the Montana Environmental Policy Act (“MEPA”)—and tests the judicial power of the state’s constitutional right to a clean and healthful environment to issue injunctions to prevent environmental harm.



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