Two suits were filed with the U.S. District Court for the District of Columbia October 9, charging that the Environmental Protection Agency has failed to update new residential wood heater particulate matter air pollution standards for 17 years. The suits said that the Clean Air Act requires the agency to update pollution limits every eight years and that the agency failed to do so in 1996, 2004, and 2012. One suit was filed by environmental and health groups including the American Lung Association and the Earthjustice, and the second was filed by the Puget Sound Clean Air Agency and the states of CT, MA, MD, NY, OR, RI, and VT.