Welcome to the website for the Ontario Water Wastewater Certification Office. Explore our site to learn about operator licencing and certification under Ontario Regulations 128/04, 129/04, and 170/03.

Careers in Water and Wastewater

Water and wastewater operators serve their communities by protecting public health and the natural environment. For information on the type of careers you can expect in the water/wastewater industry, go to https://owwco.ca/careers-in-water-and-wastewater.


► New Program Forms!

Updated operator certification program forms are coming.  The new forms are completed entirely electronically, and also allow for secure online payment with your credit or debit card, making it easier for you to access services.

First up, the Change of Address form and WWOCS User Access Request form – neither require payment, but you can now complete and submit these forms entirely from your desktop, laptop, tablet, or even your phone.  No faxing, no mailing.

Announcements will be made as more forms are updated and form resources, including instructions, tips and FAQs, become available. Check our website for updates!

Please note that submissions made with the old forms will only be accepted until January 20th, 2023.

WCWC New Course Listing
Click here for WCWC Course Listing.

Operator Certification Bulletin
Download and read the latest Operator Certification Bulletin, the Drinking Water and Wastewater Operator Certification News by clicking HERE.

To subscribe to our email news bulletin Click HERE.

Operator Certification Working Group (OCWG)
The OCWG provides expertise to the Ministry on matters related to the water and wastewater operator certification program.

For recent meeting highlights, please go to https://owwco.ca/operator-certification-working-group-ocwg-meeting-highlights.

Upcoming Exams


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