Ontario municipalities had a one-time option to opt-out of having cannabis retail stores in their communities. Municipalities had until January 22, 2019 to inform the AGCO if they wished to opt out. Municipalities that chose to opt out can opt back in at any time—but once they are in, they may no longer opt out.
If the AGCO did not received written notification from a municipality by January 22, 2019, then, by default, private cannabis retail stores will be allowed within that jurisdiction beginning April 1, 2019.
| Municipality | Status | Date of resolution |
|---|---|---|
| Lucan Biddulph, Township of | Opted-in | |
| Macdonald, Meredith and Aberdeen Additional, Township of | Opted-in | |
| Machar, Township of | Opted-in | |
| Machin, Township of | Opted-in | |
| Madawaska Valley, Township of | Opted-in | |
| Madoc, Township of | Opted-in | |
| Magnetawan, Municipality of | Opted-in | |
| Malahide, Township of | Opted-in | |
| Manitouwadge, Township of | Opted-in | |
| Mapleton, Township of | Opted-out | |
| Marathon, Town of | Opted-in | |
| Markham, City of | Opted-out | |
| Markstay-Warren, Municipality of | Opted-out | |
| Marmora and Lake, Municipality of | Opted-in | |
| Matachewan, Township of | Opted-out | |
| Mattawa, Town of | Opted-in | |
| Mattawan, Township of | Opted-in | |
| Mattice-Val Côté, Township of | Opted-in | |
| McDougall, Township of | Opted-out | |
| McGarry, Township of | Opted-out |