EPA Approves Montana's Air Quality Implementation Plans for Compliance with Clean Air Act Regulations

Summary

The US Environmental Protection Agency (EPA) has finalized the approval of new air quality implementation plans submitted by the State of Montana, which align with the Clean Air Act (CAA) and EPA's minor new source review (NSR) regulations. The plans were adopted by Montana in 2005 and 2006, and the EPA is taking this action under section 110 of the CAA.