In 2010, the U.S. Environmental Protection Agency (EPA) proposed federal rules regulating coal combustion residuals (CCRs) for the first time to address the risks posed by coal-fired power plants' disposal of such waste byproducts. The need for new regulations remains a topic of debate, heightened by the EPA's reticence to release the rule. The EPA says that it will release the new rule by the end of this year--over two years late....
