He was joined this morning by Calgary MLA Ric McIver, who announced recently he was resigning from cabinet to seek the nomination.
"It's official! Our first two potential candidates have come and picked up the nomination papers," tweeted the Progressive Conservative Association of Alberta Thursday morning.
Prentice also tweeted he is off to collect signatures for his nomination. According to his staff, Prentice will officially launch his campaign next week.
Candidates must file their papers by May 30, and will have to pay a $50,000 non-refundable deposit to run.
According to the party constitution, a leadership vote must be held no later than six months after a leader’s resignation.
Dave Hancock is serving as premier and interim party leader until a new leader is selected.
The first vote takes place on Sept. 6. If no candidate receives more than 50 per cent of the vote on the first ballot, a second vote between the top two candidates will take place on Sept. 20.
This will be the first time electronic voting options — such as online, mobile and telephone — will be available.
Tickets are available to PC party members for the official 2014 leadership launch at the Ramada Edmonton Hotel and Conference Centre on June 2.
"It will be your first chance to hear all of the candidates together at the same time as they outline their perspectives for the future of this province," said the party in a release.