Kulwinder Singh Chohan's punishment was a joint submission by the Crown and defence.
Francis Pesa, 20, was killed when the car he was in was hit by a truck on Metis Trail.
His mother, Grace Pesa, said she was surprised by the judge's address to her family which "shows there is heart and an acknowledgment of the suffering that we are all going through.”
During sentencing arguments earlier this month, Pesa told the court she was handed a life sentence when her son died.
Pesa has also joined the movement towards mandatory minimum sentences for impaired driving-related charges.
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