Penalties for repeat impaired driving in Ontario are higher than for the first offence. Under Ontatio DUI laws, you face a minimum 30-day jail sentence for the second offence. The maximum penalty you can get is up to 10 years in jail. The rules for the third offence for impaired driving are even stricter – in addition to heavy fines, you would be sentenced to a minimum of 120 days in jail. The maximum time to be sentenced to jail is 10 years.