Drink-driving limits in Ontario (2026)

Last reviewed: 29 October 2026

In short: Ontario suspends the licence of any driver with a blood alcohol concentration of 0.05 to 0.079 (warn range) and imposes a 90-day suspension at 0.08 or more. Drivers aged 21 or under, novice licence holders and commercial drivers must have no alcohol.

RuleWhat applies
Blood alcohol limit for ordinary driversDriving after drinking alcohol0.05 % blood alcohol [1]
Lower limit for novice or young driversDriving after drinking alcoholDrivers aged 21 or under, and holders of G1, G2, M1 or M2 licences, must have no alcohol or drugs in their system. First occurrence: 7-day immediate suspension, 8-hour course and $250 penalty (14 days and $350 for a second, 30 days and $450 for a third), in addition to a fine of $60 to $1,000 on conviction. [1]
Limit for professional or commercial driversDriving after drinking alcoholCommercial vehicle drivers must have no alcohol or drugs in their system: 3-day immediate suspension for a first, second or third occurrence, with an 8-hour course and $250 penalty (first), 16-hour treatment programme and $350 (second), and six-month ignition interlock and $450 (third). [1]
Maximum penaltiesDriving after drinking alcoholBAC of 0.08 or more, or failing or refusing testing: immediate 90-day suspension, 7-day vehicle impoundment, 8-hour education course and $550 penalty (first); 16-hour treatment programme for a second; six-month ignition interlock for a third. Warn range: 7-day suspension and $250 (first), 14 days and $350 (second), 30 days and $450 (third). [1]

Notes

  • Criminal Code limit (0.08%) applies nationally. This figure is the level at which provincial administrative sanctions begin; it is not a Criminal Code offence threshold.

Sources

  1. Government of Ontario: Impaired driving (consulted 29 October 2026) · all sources

National rules that also apply

These rules are set at national level in Canada and apply here too, alongside the rules above. All national rules for Canada

Blood alcohol limit for ordinary drivers0.08 % blood alcohol (source: Department of Justice Canada)
Random breath tests without suspicionYes (source: Department of Justice Canada)
Maximum penaltiesImpaired driving or driving with 80 mg or more per 100 ml of blood: on indictment, up to 10 years in prison; on summary conviction, a fine of up to $5,000, up to 2 years less a day in prison, or both. Minimum penalties for a first offence: a $1,000 fine ($1,500 at 120 to under 160 mg, $2,000 at 160 mg or more); 30 days in prison for a second offence; 120 days for each later offence. (source: Department of Justice Canada)

More rules in Ontario

Compare with the other states and provinces →

General information, not legal advice. Rules change: check the official source before you fly or ride.