In 2010, Baires was behind the wheel of a car with Tomac and two other friends as passengers. The four had spent the day at Sasamat Lake and were on the way home when police said Baires attempted to overtake another car. Baires lost control of the vehicle and ended up slamming into trees that lined the road.
Tomac later died in hospital from her injuries.
Justice Jane Dardi accepted the joint submission of the Crown and defence today.
Baires will serve his sentence, two years of probation, perform community service and be given a ban on consuming alcohol and a three-year driving ban.
Tomac's parents, Mario and Dinah, earlier said the case languished in the courts after Baires was originally charged with impaired and dangerous driving causing death.
Both have become part of Families for Justice, a group founded by Markita Kaulius who's own daughter Kassandra was killed after an impaired driver collided with her in 2011.
Today's sentencing hearing for Baires follows a guilty plea for three of the nine original charges. The charges involving impairment have been dropped.
Crimes like this should be treated like vehicular homicides and the sentencing should reflect that, Kaulius said earlier.