State by state · 50 states
Who certifies operators where
Certification is state-run everywhere, but the authority differs, and so does whether the state uses the standardized WPI exams. Every entry links its official source.
Alabama
Alabama Department of Environmental Management (ADEM) - Operator Certification Program · WPI exams
Alaska
Alaska Department of Environmental Conservation (DEC) - Operator Certification and Training Program
Arizona
Arizona Department of Environmental Quality (ADEQ) - Operator Certification Program · WPI exams
Arkansas
Arkansas Department of Health - Drinking Water Operator Licensing Program (Engineering Section) · WPI exams
California
California State Water Resources Control Board - Drinking Water Operator Certification Program (DWOCP)
Colorado
Colorado Department of Public Health & Environment - Water and Wastewater Facility Operators Certification Board (Colorado Certified Water Professionals) · WPI exams
Connecticut
Connecticut Department of Public Health - Drinking Water Section Operator Certification Program · WPI exams
Delaware
Delaware Health and Social Services, Division of Public Health - Office of Drinking Water (Public Water System Operator Certification)
Florida
Florida Department of Environmental Protection - Operator Certification Program (Division of Water Resource Management)
Georgia
Georgia State Board of Examiners for Certification of Water & Wastewater Treatment Plant Operators and Laboratory Analysts (Office of the Secretary of State, Professional Licensing Boards)
Hawaii
Hawaii Department of Health, Safe Drinking Water Branch - Water Systems Operator Certification (Board of Certification of Public Water System Operators) · WPI exams
Idaho
Idaho Board of Drinking Water and Wastewater Professionals (Division of Occupational and Professional Licenses) · WPI exams
Illinois
Illinois Environmental Protection Agency - Drinking Water Operator Certification Program
Indiana
Indiana Department of Environmental Management (IDEM) - Operator Certification Program (Capacity Development and Operator Certification Section)
Iowa
Iowa Department of Natural Resources - Water Supply Operations Section, Operator Certification Program · WPI exams
Kansas
Kansas Department of Health and Environment (KDHE) - Bureau of Water, Water & Wastewater Operator Certification
Kentucky
Kentucky Energy and Environment Cabinet - Division of Compliance Assistance, Kentucky Operator Certification Program
Louisiana
Louisiana Operator Certification Program, Louisiana Department of Health (Office of Public Health)
Maine
Water Operators' Board (Board of Licensure of Water System Operators), Maine CDC Drinking Water Program (DHHS) · WPI exams
Maryland
Board of Waterworks and Waste Systems Operators, Maryland Department of the Environment
Massachusetts
Board of Certification of Operators of Drinking Water Supply Facilities (MassDEP) · WPI exams
Michigan
Drinking Water Operator Training and Certification Unit (OTCU), Michigan Department of Environment, Great Lakes, and Energy (EGLE)
Minnesota
Minnesota Department of Health, Drinking Water Protection Section (Water Operator Certification and Training)
Mississippi
Mississippi State Department of Health, Water Supply Operator Training and Certification
Missouri
Missouri Department of Natural Resources, Drinking Water and Wastewater Operator Certification
Montana
Montana Department of Environmental Quality, Water and Wastewater Operator Certification Program · WPI exams
Nebraska
Nebraska Department of Water, Energy, and Environment (DWEE), Drinking Water Field Services & Training Program
Nevada
Nevada Division of Environmental Protection, Bureau of Safe Drinking Water (Drinking Water Operator Certification)
New Hampshire
New Hampshire Department of Environmental Services, Water Works Operator Certification Program (Drinking Water and Groundwater Bureau)
New Jersey
New Jersey Department of Environmental Protection, Water & Wastewater System Operator Licensing (Division of Water Supply and Geoscience)
New Mexico
New Mexico Environment Department, Utility Operator Certification Program (Drinking Water Bureau)
New York
New York State Department of Health, Bureau of Water Supply Protection - Water Operator Certification Program
North Carolina
North Carolina Water Treatment Facility Operators Certification Board (NC DEQ Division of Water Resources)
North Dakota
Operator Certification and Training Program, North Dakota Department of Environmental Quality (Division of Municipal Facilities)
Ohio
Operator Certification Program, Ohio EPA (Division of Drinking and Ground Waters) · WPI exams
Oklahoma
Operator Certification Unit, Oklahoma Department of Environmental Quality (Water Quality Division)
Oregon
Drinking Water Services Operator Certification Program, Oregon Health Authority · WPI exams
Pennsylvania
Operator Certification Program, Pennsylvania Department of Environmental Protection (State Board for Certification of Water and Wastewater Systems Operators)
Rhode Island
Drinking Water Operator Certification Program, Rhode Island Department of Health (Board of Certification of Operators of Drinking Water Supply Facilities) · WPI exams
South Carolina
Environmental Certification Board, South Carolina Department of Labor, Licensing and Regulation · WPI exams
South Dakota
Operator Certification Program, South Dakota Department of Agriculture and Natural Resources (Office of Water) · WPI exams
Tennessee
Operator Certification Program, Tennessee Department of Environment and Conservation (Division of Water Resources / Fleming Training Center)
Texas
Occupational Licensing (Water and Wastewater Operator Licensing), Texas Commission on Environmental Quality (TCEQ)
Utah
Operator Certification Program, Utah Department of Environmental Quality (Division of Drinking Water)
Vermont
Public Water System Operator Certification, Vermont Department of Environmental Conservation (Drinking Water and Groundwater Protection Division) · WPI exams
Virginia
Board for Waterworks and Wastewater Works Operators and Onsite Sewage System Professionals, Virginia Department of Professional and Occupational Regulation (DPOR)
Washington
Waterworks Operator Certification Program, Washington State Department of Health (Office of Drinking Water) · WPI exams
West Virginia
Certification and Training Program, Environmental Engineering Division, West Virginia Office of Environmental Health Services (Bureau for Public Health)
Wisconsin
Operator Certification Program, Wisconsin Department of Natural Resources
Wyoming
Operator Certification Program, Wyoming Department of Environmental Quality (Water Quality Division)