Ontario has adopted ABC standardized exams for:
- Water Treatment and Water Distribution and Supply (Class 1 to 4)
- Wastewater Treatment and Wastewater Collection (Class 1 to 4)
The water quality analyst, water distribution, limited subsystem and operator-in-training exams continue to use current Ontario exam content.
For more information, please see:
Ontario Drinking Water and Wastewater Certification Exams: Upcoming Changes