GOP Governors Seek To Pause PM NAAQS Compliance, Ease Implementation

A coalition of 22 Republican governors is urging EPA to pause implementation of its recently strengthened national ambient air quality standard (NAAQS) for fine particulate matter PM2.5, and to issue improved tools to ease compliance, including better air modeling, de minimis pollution thresholds, wildfire waivers and exemptions for foreign pollution. “Setting aside the legal concerns we have about the final rule, the new standard poses significant challenges for our states and ignores the progress made in reducing particulate matter...