The National Mining Association (NMA) is U.S. mining's advocate in Washington, D.C. and beyond. NMA is the only national trade organization that represents the interests of mining before Congress, the administration, federal agencies, the judiciary and the media—providing a clear voice for U.S. mining. NMA's mission is to build support for public policies that will help America fully and responsibly utilize its coal and mineral resources.Headquartered in Washington, D.C., NMA has a membership of more than 300 corporations and organizations involved in various aspects of mining. NMA provides a forum for these diverse industry segments to be informed, heard and represented.