Participating Municipalities
| Township of Adjala-Tosorontio |
| Regional Municipality of Durham |
| Town of Mono |
| Regional Municipality of Peel (Amended) |
| City of Toronto |
| Regional Municipality of York |
Partner Municipalities
| DURHAM REGION |
| Town of Ajax |
| City of Pickering |
| Township of Uxbridge |
| PEEL REGION |
| City of Brampton |
| Town of Caledon |
| City of Mississauga |
| YORK REGION |
| Township of King |
| City of Markham |
| City of Richmond Hill |
| City of Vaughan |
| Town of Whitchurch-Stouffville |