The Department of Environmental Quality proposed amendments to Mont. Admin. R. 17.8.505. The proposed amendments would increase air quality operation fees to allow the department's air quality bureau to collect sufficient revenue to support appropriate implementation of the air quality program. A hearing will be held July 13, 2018. Comments are due July 20, 2018. See https://sosmt.gov/download/191/2018/34800/issue-12-19.pdf (pp. 1132-34).