The Department of Public Health and Environment is proposing changes to 5 Colo. Code Regs. §1001-14 regarding air quality standards, designations, and emission budgets. Public hearings will be held on October 20 and 21, 2016. Public comment will be accepted until October 7, 2016. See http://www.sos.state.co.us/CCR/RegisterPdfContents.do?publicationDay=08/10/2016 (pp. 259-69).