The U.S. House of Representatives passed “Improving Coal Combustion Residuals Regulation Act of 2015,” (H.R. 1734) in a bipartisan 258-166 vote. Sponsored by Rep. David McKinley, (R-WV), it codifies the Environmental Protection Agency’s decision to regulate fly ash and other coal combustion residuals (CCR) under the Resource Conservation and Recovery Act (RCRA) “solid” versus “hazardous” waste provisions.