County
- Algoma District
- Brant County
- Bruce County
- Cochrane District
- Durham Regional Municipality
- Essex County
- Frontenac County
- Grey County
- Norfolk County
- Halton Regional Municipality
- Hamilton Municipality
- Hastings County
- Huron County
- Kenora District
- Chatham-Kent Municipality
- Lambton County
- Lanark County
- Leeds & Grenville United Counties
- Lenox and Addington County
- Middlesex County
- Muskoka District Municipality
- Niagara Regional Municipality
- Nipissing District
- Northumberland County
- Ottawa Municipality
- Oxford County
- Peel Regional Municipality
- Perth County
- Peterborough County
- Prescott & Russell United Counties
- Prince Edward County
- Rainy River District
- Renfrew County
- Simcoe County
- Stormont, Dundas & Glengarry United Counties
- Greater Sudbury Municipality
- Thunder Bay District
- Timiskaming District
- Toronto Municipality
- Kawartha Lakes Municipality
- Waterloo Regional Municipality
- Wellington County
- York Regional Municipality
- Dufferin County
- Elgin County
- Municipality of Clarington