Governing Law and Regulations
Montana Department of Environmental Quality (DEQ) Permitting and Compliance Division Water Protection Bureau
DEQ Board of Environmental Review (Board)
See ADDRESSES & CONTACTS for addresses and telephone numbers.
See national section for basic information and federal regulations.
Comparison: State vs. Federal
• Rules. Montana is authorized to administer portions of the National Pollutant Discharge Elimination System (NPDES) permit program, including state permits, federal facility permits, and general permits. The Montana Pollutant Discharge Elimination System (MPDES) permit system is essentially the equivalent of the federal permit system (NPDES) administered by the U.S. Environmental Protection Agency (EPA). See the national section NPDES PERMIT for more information.
Montana also issues general MPDES permits for stormwater discharges associated with industrial activities, for stormwater discharges associated with construction activities, for stormwater discharges associated with oil, gas, and mining operations, and stormwater discharges from municipal separate storm sewer systems (MS4s). See the state sections STORMWATER—GENERAL, STORMWATER—INDUSTRIAL ...