Require rules to limit GHG emissions

This bill directs the Montana Department of Environmental Quality to create rules that limit greenhouse gas emissions to protect public health, safety, welfare, and the environment. It expands the department's existing authority to regulate air pollutants by explicitly requiring it to develop emission limits while exempting certain agricultural and forestry activities from new permitting requirements. The legislation also allows the department to require access to emissions-related records and establish fees for permits and applications. These changes apply to the state environmental agency and any entities subject to its air quality regulations, with specific carve-outs for short-term agricultural and forestry operations.