Voter information cards are arriving in mailboxes this week.
Rejean Grenier with Elections Canada said nearly 27 million cards went out in the mail last Friday ahead of the October 21 election.
"They are a very important aspect of voting," said Grenier. "It has your name, your address, your polling station for advance polls and also on voting day."
Advance polls are scheduled for Friday, October 11 through Thanksgiving Monday, October 14.
Voters can also cast a special ballot at the Sarnia-Lambton Returning Office, located at the former Sport Chek store at 595 Murphy Rd.
Grenier said if you don't receive your information card by the end of this week, you should make sure you're registered.
"You should go to the Elections Canada website, electionscanada.ca, it's very easy," he said. "There's a little box that says voter information, you click on that and the first thing that appears is am I registered? You click on that and you'll find out. And if you're not registered you can register, either online or at your local returning office."
Grenier said it's also very important residents double check and make sure the information on their voter card is correct.