2021
Section 401 - Water Quality Certifications for 2021 Nationwide Permits
2021 Blackfeet Nation
2021 Confederated Salish and Kootenai Tribes
2021 Environmental Protection Agency (EPA)
2021 Fort Peck Tribes
2021 Montana Department of Environmental Quality (DEQ)
2021 Northern Cheyenne Tribe
Section 404 - 2021 Nationwide Permit Fact Sheets
2021 NW Permit 3 - Maintenance
2021 NW Permit 5 - Scientific Measurement Devices
2021 NW Permit 6 - Survey Activities
2021 NW Permit 7 - Outfall Structures and Associated Intake Structures
2021 NW Permit 13 - Bank Stabilization
2021 NW Permit 14 - Linear Transportation Crossings
2021 NW Permit 18 - Minor Discharges
2021 NW Permit 19 - Minor Dredging
2021 NW Permit 23 - Approved Categorical Exclusions
2021 NW Permit 25 - Structural Discharges
2021 NW Permit 27 - Aquatic Habitat Restoration/Establishment/Enhancement
2021 NW Permit 33 - Temporary Construction Access and Dewatering
2021 NW Permit 40 - Agricultural Activities
2021 NW Permit 41 - Reshaping Existing Drainage Ditches
2021 NW Permit 42 - Recreational Facilities
2021 NW Permit 43 - Stormwater Management Facilities
2021 NW Permit 45 - Repair of Uplands Damaged by Discrete Events
2017
Section 401 - Water Quality Certifications for 2017 Nationwide Permits
2017 Blackfeet Nation
2017 Confederated Salish and Kootenai Tribes
2017 Environmental Protection Agency (EPA)
2017 Fort Peck Tribes
2017 Montana Department of Environmental Quality (DEQ)
2017 Northern Cheyenne Tribe
Section 404 - 2017 Nationwide Permit Fact Sheets
2017 NW Permit 3 - Maintenance
2017 NW Permit 5 - Scientific Measurement Devices
2017 NW Permit 6 - Survey Activities
2017 NW Permit 7 - Outfall Structures and Associated Intake Structures
2017 NW Permit 13 - Bank Stabilization
2017 NW Permit 14 - Linear Transportation Crossings
2017 NW Permit 18 - Minor Discharges
2017 NW Permit 19 - Minor Dredging
2017 NW Permit 23 - Approved Categorical Exclusions
2017 NW Permit 25 - Structural Discharges
2017 NW Permit 27 - Aquatic Habitat Restoration/Establishment/Enhancement
2017 NW Permit 33 - Temporary Construction Access and Dewatering
2017 NW Permit 41 - Reshaping Existing Drainage Ditches
2017 NW Permit 42 - Recreational Facilities
2017 NW Permit 43 - Stormwater Management Facilities
2017 NW Permit 45 - Repair of Uplands Damaged by Discrete Events
2012
Section 401 - Water Quality Certifications for 2012 Nationwide Permits
2012 Blackfeet Nation
2012 Confederated Salish and Kootenai Tribes
2012 Environmental Protection Agency (EPA)
2012 Fort Peck Tribes
2012 Montana Department of Environmental Quality (DEQ)
2012 Northern Cheyenne Tribe
Section 404 - 2012 Nationwide Permit Fact Sheets
2012 NW Permit 3 - Maintenance
2012 NW Permit 5 - Scientific Measurement Devices
2012 NW Permit 6 - Survey Activities
2012 NW Permit 7 - Outfall Structures and Associated Intake Structures
2012 NW Permit 13 - Bank Stabilization
2012 NW Permit 14 - Linear Transportation Crossings
2012 NW Permit 18 - Minor Discharges
2012 NW Permit 19 - Minor Dredging
2012 NW Permit 23 - Approved Categorical Exclusions
2012 NW Permit 25 - Structural Discharges
2012 NW Permit 27 - Aquatic Habitat Restoration/Establishment/Enhancement
2012 NW Permit 33 - Temporary Construction Access and Dewatering
2012 NW Permit 41 - Reshaping Existing Drainage Ditches
2012 NW Permit 43 - Stormwater Management Facilities
2012 NW Permit 45 - Repair of Uplands Damaged by Discrete Events