You must be on the voters' list in order to be able to cast a ballot. The preliminary list has been created by the Municipal Property Assessment Corporation (MPAC) based on data it keeps on home ownership and tenancy.
Voters List Form
This list is sent to the municipal clerk in advance of the regular election. The clerk can correct any errors on the list, and the corrected list becomes the voters' list.
How to request a change to the voters' list
Changes or additions can be made to the list. If you are not on the voters' list or if your information is incorrect (for example, you have moved but your former address is still showing on the list), you may apply to have your name added or to have your information corrected using Form EL-15. The EL-15 (attached here) can be filled out and printed, or a copy can be obtained at the Customer Service Centre, 10 Lisgar Ave., along with a piece of Acceptable Voter Identification.
Application to Amend Voters' List (PDF fillable)