10.2 Impaired Driving Laws, Zero Tolerance & Sanctions
Key Takeaways
Drivers aged 21 and under, all G1, G2, M1 and M2 drivers, and anyone driving a vehicle that needs an A–F licence or a CVOR must have no alcohol and no drugs in their system.
Ontario's impaired-driving page (updated June 30, 2026) lists a 7-day immediate suspension, an 8-hour education course and a $250 penalty for a first warn-range (0.05–0.079) occurrence; the second brings 14 days and the third 30 days plus interlock.
Young and novice drivers who break the zero rule face the same 7-, 14- and 30-day roadside suspensions, a $60–$1,000 fine if convicted, and an extra 30-day, 90-day or cancellation sanction depending on age and licence.
A BAC of 0.08 or more, or failing or refusing a demand for alcohol or drug testing, brings an immediate 90-day licence suspension, a 7-day vehicle impoundment and a $550 penalty.
A first criminal impaired-driving conviction brings at least a one-year Ontario licence suspension, a mandatory education or treatment program, and at least one year with an ignition interlock.
Impaired Driving Laws, Zero Tolerance & Sanctions
Quick Summary: Driving while your ability is impaired by alcohol, cannabis, other drugs or any combination is a crime in Canada, and Ontario adds immediate roadside penalties on top. Drivers 21 and under, all G1, G2, M1 and M2 drivers, and anyone driving a vehicle that needs an A–F licence or a CVOR must have no alcohol and no drugs in their system. For everyone else, a blood alcohol concentration (BAC) of 0.05 to 0.079 is the "warn range", and 0.08 or more is a criminal offence. Ontario's impaired-driving page, updated June 30, 2026, lists longer roadside suspensions than older materials: 7, 14 and 30 days in the warn range, and 90 days plus a 7-day impoundment at 0.08 or on refusal.
Two Layers of Consequences
When police find a driver impaired, two separate systems apply:
- Provincial roadside sanctions (Highway Traffic Act): These take effect immediately, before any trial. They include licence suspensions, vehicle impoundment, monetary penalties, education or treatment programs, ignition interlock and reinstatement fees.
- Criminal charges (Criminal Code of Canada): A conviction brings a criminal record, fines, possible jail, and long provincial licence suspensions.
Your vehicle does not have to be moving: you can be charged if you are impaired behind the wheel, even before you start to drive. Impaired-driving laws also cover boats, snowmobiles and off-road vehicles.
Zero Alcohol, Zero Drugs: Who Must Be at Zero?
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| ZERO ALCOHOL AND ZERO DRUGS (Ontario.ca) |
| |
| - Every driver aged 21 or under, whatever their licence class |
| - Every G1, G2, M1 and M2 driver, at any age |
| - Anyone driving a vehicle that needs an A-F licence or a CVOR |
| - Anyone driving a road-building machine |
+---------------------------------------------------------------------------+
The handbook: "It is now law that all young drivers 21 and under, regardless of licence class, must have a blood-alcohol level of zero." For G1 and G2 drivers, zero BAC is also a condition of the licence itself (Section 1.2). Cannabis counts: Ontario's zero-tolerance rules for young, novice and commercial drivers cover cannabis as well as alcohol.
Penalties for Young and Novice Drivers (Ontario.ca, June 2026)
| Occurrence | Immediate Suspension | Program | Penalty | If Convicted |
|---|---|---|---|---|
| First | 7 days | 8-hour education course | $250 | $60–$1,000 fine |
| Second | 14 days | 16-hour treatment program | $350 | $60–$1,000 fine |
| Third | 30 days | 16-hour treatment program + ignition interlock for six months | $450 | $60–$1,000 fine |
On conviction, the licence can also be suspended for an additional 30 or 90 days, or cancelled, depending on your age and licence class. For G1 and G2 drivers this is the novice escalating sanction: 30 days, then 90 days, then cancellation. A reinstatement fee applies every time your licence is suspended.
Note
Handbook vs. current law: The online handbook page still describes a 24-hour roadside suspension for young drivers and a 3-day first warn-range suspension. Ontario's impaired-driving page, updated June 30, 2026, lists the longer suspensions shown here. Study the current figures, and remember the rule itself is unchanged: zero means zero.
The Warn Range (BAC 0.05 to 0.079) — All Drivers
A BAC from 0.05 to 0.079 is below the criminal limit but already impairs judgment and reaction time. The same penalties apply to drivers who fail the Standardized Field Sobriety Test (for alcohol, drugs or both).
| Occurrence | Immediate Suspension | Program | Penalty |
|---|---|---|---|
| First | 7 days | 8-hour education course | $250 |
| Second | 14 days | 16-hour treatment program | $350 |
| Third | 30 days | 16-hour treatment program + ignition interlock condition for six months | $450 |
A reinstatement fee is charged each time. Drivers with more than one warn-range conviction must complete alcohol education or treatment.
0.08 or More, Failing a Drug Evaluation, or Refusing a Test
Ontario applies the harshest roadside sanctions to any driver who:
- has a BAC of 0.08 or more (80 milligrams of alcohol in 100 millilitres of blood);
- fails or refuses a demand for alcohol or drug testing, including breath, blood, oral fluid or urine samples, physical coordination tests, or a drug evaluation; or
- performs poorly in a Drug Recognition Expert evaluation.
| Occurrence | Immediate Suspension | Vehicle | Program | Penalty |
|---|---|---|---|---|
| First | 90 days | 7-day impoundment | 8-hour education course | $550 |
| Second | 90 days | 7-day impoundment | 16-hour treatment program | $550 |
| Third | 90 days | 7-day impoundment | Treatment + ignition interlock for six months | $550 |
The handbook calls the 90-day suspension an administrative driver's licence suspension (ADLS). It starts at the roadside or police station and is separate from any criminal charge. Impoundment applies even if the vehicle is borrowed or rented, and the owner pays towing and storage before it is released.
Refusing Is Not a Loophole
Refusing a lawful demand is a Criminal Code offence in itself, and in Ontario it brings the same immediate 90-day suspension and 7-day impoundment as blowing 0.08 or more. Police can demand breath samples, standardized field sobriety tests, a drug recognition evaluation, and oral fluid, urine or blood samples.
Criminal Convictions: Ontario Licence Consequences
Ontario.ca lists these additional provincial penalties after a criminal impaired-driving conviction, on top of court fines and any jail. Some took effect on July 1, 2026:
| Conviction | Licence Suspension | Program | Ignition Interlock | Afterwards |
|---|---|---|---|---|
| First | At least 1 year | Mandatory education or treatment | At least 1 year | Minimum 6-month "P" condition (zero alcohol, zero drugs) |
| Second within 10 years | At least 3 years | Mandatory | At least 3 years | 6-month "P" condition |
| Third within 10 years | Lifetime (may be reduced after 10 years if criteria are met) | Mandatory | At least 6 years | Medical evaluation; 6-month "P" condition |
| Fourth within 10 years | Lifetime, no reduction | — | — | — |
| Impaired driving causing death | Lifetime (may be reduced after 25 years) | Mandatory | At least 6 years | Medical evaluation; "P" condition |
Criminal Code fines and jail (federal law): A first impaired-driving conviction carries a minimum $1,000 fine, rising to $1,500 at a BAC of 120–159 mg and $2,000 at 160 mg or more. A second offence carries a minimum 30 days in jail and a third 120 days. Impaired driving causing bodily harm can bring up to 14 years in prison, and causing death up to life.
Remedial Programs and Interlock
- Back on Track is Ontario's mandatory remedial program for drivers convicted of impaired, driving-related Criminal Code offences. A suspended licence stays suspended until the program is complete.
- An ignition interlock is an in-car breath tester wired to the ignition. The vehicle won't start if alcohol is detected, and it asks for random retests while you drive. Driving a vehicle without a required interlock brings a 7-day impoundment.
Drugs, Medication and Getting Home Safely
- Prescription and over-the-counter drugs can impair driving. Ask your doctor or pharmacist about side effects such as drowsiness, dizziness or blurred vision, and read the label on cold, allergy, sedative or diet pills.
- Drugs and any amount of alcohol together can have dangerous effects, even several days after taking the drug.
- Collisions and insurance: If you drink and drive and crash, your insurer might not pay for your medical or rehabilitation costs or the vehicle damage, and your premiums can rise sharply. A suspension can also cost you a job that requires driving.
- Plan another way home: a designated driver, public transit, a ride from a friend or family member, a taxi or ride share, or staying overnight.
Which drivers in Ontario are legally required to maintain an absolute 0.00% Blood Alcohol Concentration (BAC) while operating a motor vehicle?
Only G1 learner drivers during daylight hours
All G1 and G2 drivers, and all drivers aged 21 and under, regardless of licence class
Only commercial truck and bus operators holding Class A or Class B licences
All drivers regardless of age or licence class during their first two years on the road
According to Ontario's impaired-driving page (updated June 2026), what happens the first time a fully licensed driver over 21 is caught in the warn range (BAC 0.05 to 0.079)?
A 24-hour suspension only
An immediate 90-day suspension and 7-day impoundment
An immediate 7-day licence suspension, an 8-hour education course and a $250 penalty
A 30-day suspension and 6 demerit points
What immediate roadside administrative sanctions are imposed on an Ontario driver who refuses to provide a breath sample upon lawful police demand?
A 24-hour roadside suspension and a $100 municipal ticket
A 3-day licence suspension without vehicle impoundment
A formal warning letter and mandatory MTO interview within 30 days
An immediate 90-day driver's licence suspension and 7-day vehicle impoundment
A G2 driver is found with alcohol in their system for the first time. What immediate roadside suspension does Ontario's current impaired-driving page list?
A 7-day immediate licence suspension
No suspension, only a warning
A 60-day suspension and 4 demerit points
Immediate lifetime cancellation
Sections you finish are checked off in the contents.