Congressman Fred Upton (R-MI) and Ed Whitfield (R-KY), Senator James Inhofe (R-OK), and the Electric Reliability Coordinating Council asked the Environmental Protection Agency last week to extend the comment period for proposed rules that would establish new limits on power plant emissions of mercury, acid gases, and sulfur dioxide. The comment period currently closes July 5, but Congressional officials have requested that the comment period be extended to 120 days, and the power companies have asked for 150 days. The American Lung Association sent a letter May 18 asking the agency to not extend the comment period.