MT HB270

Amends the Montana Environmental Policy Act (MEPA) to remove a provision that previously prohibited environmental reviews from including evaluation of greenhouse gas emissions and climate impacts, unless conducted jointly with a federal agency or required by federal Clean Air Act amendments

Establishes that if a court finds MEPA noncompliance, the court may remand the matter to the agency to correct the noncompliance, rather than voiding or delaying permits

Restricts courts from enjoining, voiding, nullifying, revoking, modifying, or suspending licenses or permits issued under Title 75 or Title 82 unless the requesting party demonstrates likelihood of prevailing on merits, irreparable harm, and public interest considerations including economic implications

Removes the prior requirement that challengers seeking to vacate permits must first seek an injunction as an initial procedural matter before courts can consider the challenge

Effective immediately upon passage and approval; applies to all court decisions pending but not yet decided and cases filed on or after the effective date