Janet McCabe, acting assistant administrator for EPA’s Office of Air and Radiation, announced today that EPA’s comment period for its proposed Clean Power Plan will be extended 45 days from the mid-October deadline to December 1, 2014. EPA’s announcement comes a week after a group of bipartisan U.S. senators asked for additional time to weigh in on the plan. EPA claims the delay will not affect the rule’s anticipated June 2015 finalization date, but we expect the extension and extent of comments will slow EPA’s momentum.