The Oregon Department of Environmental Quality reissued Oregon’s National Pollutant Discharge Elimination System Stormwater Discharge General Permit No. 1200-Z (1200-Z General Permit), which regulates industrial stormwater discharges to waters of the state. The new 1200-Z General Permit, which took effect on July 1, 2026, reflects several significant changes from the previous 1200-Z permit issued in 2021.