Jan 30, 2018· Comment submitted by Kathleen M. Roberts, Executive Director, North American Metals Council (NAMC) and Tawny A. Bridgeford, Deputy General Counsel, National Mining Association (NMA)· EPA-HQ-OPPT-2017-0586-0063
See appended comments from the North American Metals Council (NAMC) and the National Mining Association (NMA).