Regulatory Members*
* See WPI program abbreviations at the conclusion of member list for acronym explanations.
- Alabama Department of Environmental Management (Coll, Dist, WT, WWT)
- Alaska Department of Environmental Conservation, Division of Water (Coll, Dist, WT, WWT)
- Alberta Environment & Parks (Coll, Dist, SWWS, VSWS, WT, WWT)
- Arab Countries Water Utilities Association (ACWUA)
- Arizona Operator Certification Program – Arizona Department of Environmental Quality (Coll, Dist, WT, WWT)
- Arkansas Department Energy & Environment, Division of Environmental Quality (WWT)
- Arkansas Drinking Water Advisory and Operators Licensing Committee (Dist, VSWS, WT)
- Arkansas Water Environment Association (Coll)
- California Water Environment Association (BLA, Coll, Insp, Main, WWLA, WWT, )
- California-Nevada Section, AWWA Certification Program (BPAT, CCC, Dist, WLA, WT, WUE {Water Use Efficiency})
- Caribbean Water and Sewerage Association, Inc. (CAWASA) (Coll, Dist, SWWS, VSWS, WLA, WT, WWLA, WWT)
- City of Phoenix Water Services (Coll, Dist, WT, WWT)
- Colorado Water and Wastewater Facility Operators Certification Board (WWFOCB) (Coll, Dist, PCIW, SWWS, VSWS, WT, WWT)
- Commonwealth of Northern Mariana Islands (Coll, Dist, WT, WWT)
- Connecticut Department of Energy and Environmental Protection, Bureau of Water Protection and Land Reuse (WWT)
- Connecticut Department of Public Health, Drinking Water Section (Dist, WT)
- Delaware Board of Certification for Waste Operators (BIW, SWWS, PCIW, WWT)
- Environmental Operators Certification Program (Coll, Dist, WT, WWT)
- Georgia Association of Water Professionals (BPAT)
- Georgia State Board of Examiners for Certification of Water & Wastewater Treatment Plant Operators & Laboratory Analysts (Coll, Dist, PCIW, VSWS, WLA, WT, WWLA, WWT)
- Government of Nunavut
- Government of the Northwest Territories, Department of Municipal and Community Affairs (Coll, Dist, SolW, SWWS, VSWS, WT, WWT)
- Guam Environmental Protection Agency (Coll, Dist, WT, WWT)
- Hawaii Department of Health, Safe Drinking Water (Dist, WT)
- Hawaii State Department of Health Wastewater Branch (WWT)
- Idaho Division of Occupational and Professional Licenses (BPAT, Coll, Dist, SWWS, VSWS, WT, WWLA, WWT)
- Indiana Water Environment Association (Coll)
- Inter-Tribal Council of Arizona, Inc. (Coll, Dist, SWWS, WLA, WT, WWLA, WWT)
- Iowa Department of Natural Resources Water Quality Bureau – Drinking Water & Wastewater Treatment Operator Certification Program (Dist, VSWS, WT, WWT)
- Iowa Water Environment Association (Coll)
- Kansas Department of Health and Environment, Bureau of Water (WT, WWT)
- Kansas Water Environment Association Voluntary Certification Program (BIW, BLA, Coll, Dist, Main, PCIW, WLA, WWLA)
- Kentucky Water and Wastewater Operators’ Association, Inc. (WLA, WWLA)
- Maine Board of Licensure of Water System Operators (Dist, VSWS, WT)
- Maine Wastewater Operator Certification Program (WWT)
- Manitoba Conservation and Climate (Coll, Dist, SWWS, VSWS, WT, WWT)
- Maryland Department of the Environment Water Supply Program (BIW, BLA, Coll, Dist, PCIW, SWWS, VSWS, WT, WWT)
- Massachusetts Board of Certification of Operators of Drinking Water Supply Facilities (Dist, VSWS, WT)
- Massachusetts Board of Certification of Operators of Wastewater Treatment Facilities (PCIW, WWT)
- Minnesota Department of Health (Dist, VSWS, WT)
- Mississippi Department of Environmental Quality (Coll, WWT)
- Mississippi State Department of Health, Bureau of Public Water Supply (BPAT, Dist, WT)
- Missouri Department of Natural Resources Solid Waste Technician Certification (Coll, Dist, SolW, WWT)
- Missouri Water Environment Association (SolW)
- Montana Department of Environmental Quality – Operator Certification Program (Dist, SWWS, VSWS, WT, WWT)
- Native American Water Association (Coll, Dist, VSWS, WLA, WT, WWLA, WWT)
- Navajo Nation EPA (Coll, Dist, VSWS, WT, WWT)
- NC One Water (North Carolina AWWA & WEA) (WWLA, Main)
- Nebraska Wastewater Operator Certification Program (NDEE) (PCIW, WWT)
- Nevada Division of Environmental Protection, Bureau of Safe Drinking Water (Dist, WT)
- Nevada Water Environment Association (BIW, Coll, Insp, Main, PCIW, WWLA, WWT)
- New Brunswick Department of Post-Secondary Education, Training and Labour Apprenticeship and Occupational Certification Branch (Coll, Dist, WT, WWT)
- New England Water Works Association (NEWWA)
- New Hampshire Department of Environmental Services: Drinking Water & Groundwater Bureau (Dist, VSWS, WT)
- New Jersey Water Environment Association
- New Jersey Water Supply and Wastewater Operators Board of Examiners (BIW, Coll, Dist, VSWS, WT, WWT)
- New Mexico Environment Department – Drinking Water Bureau (Coll, Dist, SWWS, VSWS, WWLA, WWT)
- New York Department of Environmental Conservation – Operators of Wastewater Plants (WWT)
- New York State Department of Health (CCC, Dist, SolW, VSWS, WT)
- New York Water Environment Association (Coll)
- Newfoundland Department of Environment & Climate Change (Coll, Dist, VSWS, SWWS, WWT, WT, )
- Nova Scotia Department of Environment and Climate Change (WT, Dist, VSWS, WWT, Coll)
- Ohio Environmental Protection Agency Division of Drinking and Ground Waters (WT, Dist, VSWS, WWT, Coll, SWWS)
- Ohio Water Environment Association (PCIW, WWLA, BIW)
- Oklahoma Department of Environmental Quality (WT, Dist, VSWS, WWT, Coll, SWWS, WLA, WWLA)
- Oklahoma Water Environment Association
- Ontario Water & Wastewater Operator Certification Program (WT, Dist, VSWS, WLA, WWT, Coll)
- Oregon Department of Environmental Quality (WWT, Coll, SWWS)
- Oregon Health Authority Drinking Water Program (WT, Dist)
- Prince Edward Island Environment, Energy and Climate Action – Drinking Water and Wastewater (WT, Dist, VSWS, WWT, Coll)
- Rhode Island Drinking Water Operators Certification Board (WT, Dist, VSWS)
- Rocky Mountain Water Environment Association (BLA)
- Rocky Mountain Water Quality Analyst Association
- South Carolina Environmental Certification Board (WT, Dist, WWT, PCIW, Well Driller, Bottled Water)
- South Dakota Operator Certification Program (WT, Dist, VSWS, WWT, Coll, SWWS)
- State of Washington Department of Ecology (WWT)
- Technical and Vocational Skills Development Commission (TVSDC)
- Tennessee Division of Water Resources (WT, Dist, VSWS, WWT, Coll, SWWS)
- Texas Water Utilities Association Laboratory Analysts (TWUA Laboratory Analyst)
- United South & Eastern Tribes, Inc. Certification Board (USET) (WT, Dist, VSWS, WWT, Coll, WLA, WWLA)
- University of New Mexico Center for Water & Environment
- Utah Wastewater Operator Certification Program (WWT, Coll, WWLA, BLA, Main, Small Lagoon System)
- Vermont Dept of Environmental Conservation Drinking Water & Groundwater Protection Div. (WT, Dist, VSWS, Onsite Sewage System Installers, Onsite Sewage System Operators)
- Vermont Wastewater Facility Operator Certification Program – Vermont Office of Professional Regulation (WWT)
- Virginia Board for Waterworks and Wastewater Works Operators and Onsite Sewage System Professionals (WT, WWT, Onsite Sewage System Professionals)
- Washington Certification Services (BPAT, WT)
- Washington Dept. of Health – Office of Drinking Water (WT, Dist, CCC, VSWS)
- Washington Landfill and Incinerator Operator Certification Program (Insp, Incinerator Operator)
- Water Environment Association of South Carolina (Coll)
- Water Security Agency (WT, Dist, VSWS, WWT, Coll, SWWS)
- Wisconsin DNR – Operator Certification Program – Drinking Water
- West Virginia Department of Health & Human Resources Certification & Training Program (WT, Dist, VSWS, WWT, Coll, SWWS, BPAT)
- Wyoming Department of Environmental Quality (WT, Dist, WWT, Coll)
Voluntary Members
- California State Water Resources Control Board (SWRCB)
Provisional Members
Special Members
- American Water Works Association (AWWA)
- Water Environment Federation (WEF)
Associate Members
- Albania – Water Supply & Sewerage Association of Albania
- Backflow Management Inc. (BMI)
- California State University, Sacramento Office of Water Programs (CSUS)
- CEU Plan
- Evergreen Rural Water of Washington
- First Nations Health Authority
- Ground/Water Treatment & Technology (GWTT)
- Hawaii Rural Water Association
- Klenzoid, Inc.
- Lakehaven Water and Sewer District
- Lau Lau Consulting
- Murfreesboro Water Resources Department
- Rural Community Assistance Partnership (RCAP)
- SkillWorks, Inc.
- South Dakota Association of Rural Water Systems (SDARWS)
- State Environmental Services, Inc.
- Technical Learning College
- Town of Johnstown
- Town of Putnam Water Pollution Control Authority
- Trinity River Authority of Texas
- Utility Services of Alaska
- Walkerton Clean Water Centre
- Washington Environmental Training Center (WETRC)
- WaterOperator.org
- Wyoming Association of Rural Water Systems (WARWS)
WPI Program Abbreviations
- BIW – Biological Industrial Wastewater
- BLA – Biosolids Land Application
- BPAT – Backflow Prevention Assembly Tester
- CCC – Cross-Connection
- Coll – Collection
- Dist – Distribution
- Insp – Inspectors
- Main – Maintenance
- PCIW – Physical/Chemical Industrial Waste
- SolW – Solid Waste
- SWWS – Small Wastewater System
- VSWS – Very Small Water Systems
- WLA – Water Laboratory Analyst
- WT – Water Treatment
- WWLA – Wastewater Laboratory Analyst
- WWT – Wastewater Treatment