Winter tires are mandatory in Quebec from December 1 to March 15, required by signs on designated British Columbia highways from October 1, and recommended but not mandated province-wide in Ontario. This guide covers the Quebec dates, exemptions, and fine, the British Columbia route rules, and the Ontario insurance discount.
Applies in: British Columbia, Ontario, Quebec
Canada has no single winter tire rule. Quebec mandates winter tires by calendar dates for Quebec-registered vehicles. British Columbia mandates them by road signs on designated highways. Ontario does not mandate them province-wide, and instead recommends them and requires insurers to offer a discount. This guide covers those three provinces in detail, in that order, using only the rules the official pages state. It names no tire brand or model, and it states no tire price. The rest of Canada is not covered in detail here: check your province or territory's own pages before you drive.
From December 1 to March 15 inclusive, all motorized road vehicles registered in Quebec, other than heavy vehicles, tool vehicles, and farm machinery, must be equipped with winter tires. That is the Société de l'assurance automobile du Québec wording, and it is repeated on the Quebec government's requirements page. Your vehicle must be equipped with four winter tires that meet established standards and are in good condition.
The requirement also applies to rental passenger vehicles in Quebec, as well as mopeds, motorized scooters, and motorcycles. If your vehicle is not equipped with winter tires between December 1 and March 15 inclusive, the fine varies from $200 to $300, plus costs.
The rule exists because of what cold does to other tires. As soon as the temperature drops below 7°C, or when there is ice or snow on the road, the rubber compound of summer and all-season tires hardens and loses its grip, and their treads are not designed to hold snow the way winter tire treads are. Winter tire rubber is designed to stay flexible in temperatures as low as -40°C. Because such conditions can generally be expected before December 1, the Société de l'assurance automobile du Québec highly recommends fitting winter tires before the mandatory deadline, and keeping them on for a time after March 15.
Since December 15, 2014, only tires on which the official pictogram is found, a mountain with a snowflake in the middle, and studded tires are considered winter tires under the Highway Safety Code. Look for the pictogram on the tire wall. A tire marked only M+S does not pass the Quebec test.
Check tread depth when the tires are installed. For better traction, the tread depth should be at least 4.8 mm (6/32 in) across the entire width of the tire when the tires are installed. That is a recommendation for traction, not the legal floor. Separately, a tire's tread depth must never be less than the authorized limit of 1.6 mm, and tread wear should be even across the width of the tire. Traction can decrease quickly once treads wear down toward that point, especially over long distances in winter.
Check the date the tires were made, especially when buying used tires. On the tire wall, find the DOT identification number that ends with a 4-digit number. For example, 3613 means the tire was made in the 36th week of 2013. The tread on older tires is harder and less effective on snow and ice, and the Société de l'assurance automobile du Québec notes that tires older than 5 years typically start to lose their qualities. Follow your vehicle manufacturer's recommendations for tire size and type, have a professional install the tires, and keep the same model and the same level of wear front and rear, with identical or manufacturer-equivalent tires on each axle.
Studded tires are authorized between October 15 and May 1 inclusive for passenger vehicles, taxis and vehicles comparable to a taxi, and commercial vehicles with a gross vehicle weight of no more than 3,000 kg. Chains are authorized in Quebec only on the tires of emergency vehicles, farm tractors, and road vehicles used for snow removal and winter maintenance. Do not fit chains to a passenger vehicle in Quebec on the assumption that British Columbia chain practice applies there.
The requirement does not apply in the following cases, as the Société de l'assurance automobile du Québec lists them: for the first 7 days following the purchase of a vehicle from a dealer; for the last 7 days before the end of a lease of 12 months or more; to vehicles with dealer plates (X plates); to vehicles with a temporary registration certificate (transit), for a period of up to 7 days after the certificate was issued; to a motor vehicle permanently converted into living quarters; to the spare tire of a vehicle; to emergency motorcycles and vehicles as defined by the Police Act and the pre-hospital emergency services legislation; and to vehicles for which a winter tire exemption certificate has been issued.
The Quebec government's page adds two further exceptions in its own list: trailers, and vehicles registered outside of Quebec. It also states the proof to carry for the purchase and lease windows: the bill of sale or a copy, and the lease agreement or a copy.
The exemption certificate is a seven-day certificate for specific situations. The Société de l'assurance automobile du Québec lists them: using a vehicle to leave or return to Quebec, including snowbirds; acquiring a vehicle that must be equipped with winter tires from an individual other than a vehicle dealer, with the 7-day period beginning on the date the vehicle is acquired; making a return trip to a point of origin outside Quebec of a vehicle rented and registered outside Quebec that was left in Quebec when the rental period expired; moving a vehicle from a dealer's place of business to an auction sale and back; moving a vehicle to a sale by judicial authority and back; taking a vehicle that must be equipped with winter tires out of storage; terminating a long-term lease before its expiry date; and seizure, impoundment, or a prohibition on putting a vehicle back into operation that began before December 1 and ends on December 1 or after. Request the certificate through SAAQclic or at a service outlet, before you drive without winter tires in one of those situations. This guide states no limit on the number of certificates and no fee for one, because neither could be verified on the Société de l'assurance automobile du Québec pages.
British Columbia does not use Quebec's calendar test for the whole province. Winter tires or chains are required on most routes in British Columbia from October 1 to April 30. For select highways not located through mountain passes or high snowfall areas, tire and chain requirements end March 31. The routes are marked with regulatory signs posted on highways throughout the province, and drivers who go beyond the signs without the proper equipment may be turned around and fined.
Check the route maps on the province's designated-routes page before a trip, and check DriveBC for current conditions. The province names the Malahat on Highway 1 as a place where winter tires are needed, even though drivers are not required to use winter tires in many areas along the coast in the Lower Mainland and southeastern Vancouver Island, because of the more temperate winter climate there. If you plan to travel outside the Lower Mainland and southeastern Vancouver Island, winter tires are required on most highways. Cities, municipalities, and private roads such as ski hills may have their own bylaws or rules that differ from the provincial highway regulations.
On a designated route, a winter tire must carry either the three-peaked mountain and snowflake symbol or the M+S (mud and snow) marking, and must have at least 3.5 mm of tread depth. Either marking meets the legal minimum on a posted route; the mountain and snowflake tire is the one built to the severe-snow test, and the province's winter driving material presents it as offering better traction on snow and ice. The requirement applies on the signed route whether the vehicle has two-wheel, all-wheel, or four-wheel drive. No drive system exempts a vehicle from a posted sign.
For passenger vehicles, the fine for not being equipped with winter tires when and where required is $121, under section 125 of the Motor Vehicle Act, as the province's enforcement page states it. Commercial vehicle chain rules are separate and heavier: commercial vehicles that bypass an active chain-up area face a $598 fine, and commercial vehicles that do not carry chains where required face a $196 fine. This guide states those figures only to keep passenger and commercial rules apart. If you drive a commercial vehicle in British Columbia in winter, read the province's commercial-vehicle page for the chain and traction-device rules that apply to its weight class.
Ontario has no province-wide winter tire mandate in the Ministry of Transportation handbook. What the handbook does say is direct: to provide the best traction during the winter season, it is recommended that your vehicle be equipped with four winter or all-weather tires with the same tread pattern. The handbook also sets general tire rules that apply year-round: replace tires when the tread is less than 1.5 millimetres deep or when tread-wear indicators touch the road, use similar tires on all four wheels, and do not use a tire older than 10 years, since aged tires have reduced traction and are more prone to cracking.
The financial rule is separate from the driving rule. Ontario Regulation 664 under the Insurance Act requires a discount in the rate of insurance for contracts issued or renewed on or after January 1, 2016, for an automobile that is equipped with winter tires. This guide states no discount percentage and no qualifying dates, because neither appears in the regulation text. Ask your insurer what discount it offers, what proof it needs, and which dates it applies the discount to, and get the answer before you buy.
For studded tires, the handbook states only that a person living in northern Ontario can legally use studded tires on a vehicle. No Ontario studded-tire dates are stated in this guide, because none could be verified on the handbook pages. For winter driving preparation, the handbook's winter maintenance list is short and practical: carry a shovel, booster cables, emergency flares or warning lights, a blanket, and a chain for towing; always carry extra windshield washer fluid in winter; and have a faulty exhaust system checked, since exhaust faults are especially dangerous in winter when drivers are more likely to drive with windows and vents closed. For bad-weather driving itself, the handbook's snow and whiteout advice is to slow down gradually, use low-beam headlights, increase following distance, avoid cruise control in snow, and pull into a safe parking area if visibility falls to near zero rather than stopping on the travelled portion of the road.
Run this check on the set you own, in this order, before spending on a new set. First, read the sidewall: in Quebec you need the pictogram or studs; in British Columbia you need the mountain and snowflake symbol or the M+S marking. Second, measure tread depth across the full width of each tire, and compare it with the figure for the province you will drive in: at least 4.8 mm recommended when installing winter tires in Quebec, never below the 1.6 mm authorized limit, and at least 3.5 mm on a designated British Columbia route. Third, read the DOT manufacture date and look for cracking, bulges, knots, exposed cords, and uneven wear. Fourth, check pressure against the vehicle manufacturer's recommendation, not the maximum printed on the tire, and confirm the tire pressure monitoring system works if the vehicle has one. Fifth, confirm all four tires match in model and wear as the Quebec and Ontario pages each require in their own terms, and confirm the size matches the vehicle manufacturer's specified minimum. If any tire fails the sidewall, tread, or damage check for the province you will drive in, that tire does not become compliant by being moved to a different axle.
Store off-season tires in a cool, dry place away from heat, damp, and direct sunlight, stacked horizontally rather than standing vertically on the ground, as the Société de l'assurance automobile du Québec recommends. Have wheel alignment checked once a year, as the large automakers recommend, since a misaligned vehicle can become unstable and the problem worsens in difficult driving conditions.
No, not as the Quebec government states the rule. The requirement applies to motor vehicles registered in Quebec, and the Quebec government's requirements page lists vehicles registered outside Quebec among the exceptions, along with trailers. That is the legal position, not a safety recommendation. If you move to Quebec and register the vehicle there, the vehicle becomes a Quebec-registered vehicle and the December 1 to March 15 rule applies to it. Check the registration timing on the Société de l'assurance automobile du Québec pages when you move.
Yes. The Société de l'assurance automobile du Québec states that the requirement also applies to rental passenger vehicles in Quebec, as well as mopeds, motorized scooters, and motorcycles. When you collect a rental car in Quebec between December 1 and March 15, confirm before you leave that it is fitted with four tires bearing the winter pictogram or with studded tires. A rental collected outside Quebec and registered outside Quebec sits under the outside-Quebec exception, but the Quebec pages still recommend winter tires for winter driving conditions.
No. Since December 15, 2014, only tires bearing the official winter pictogram, a mountain with a snowflake in the middle, and studded tires are considered winter tires under the Highway Safety Code. A tire marked only M+S does not meet the Quebec test. British Columbia is different: on designated routes it accepts either the three-peaked mountain and snowflake symbol or the M+S marking, with at least 3.5 mm of tread. Do not carry the British Columbia test into Quebec, or the Quebec test into British Columbia.
In Quebec, studded tires are authorized from October 15 to May 1 inclusive for passenger vehicles, taxis and vehicles comparable to a taxi, and commercial vehicles with a gross vehicle weight of no more than 3,000 kg. Chains in Quebec are authorized only on the tires of emergency vehicles, farm tractors, and road vehicles used for snow removal and winter maintenance. In Ontario, the Ministry of Transportation handbook states that a person living in northern Ontario can legally use studded tires, and this guide states no studded-tire dates for Ontario because none could be verified on the handbook pages.
Two seven-day windows apply. The requirement does not apply for the first 7 days following the purchase of a vehicle from a dealer, or for the last 7 days before the end of a lease of 12 months or more. Keep the bill of sale or the lease agreement, or a copy, with you, as the Quebec government's page states that proof is required. For other narrow situations, such as leaving or returning to Quebec, buying from a private seller, or taking a stored vehicle out of storage, request a seven-day winter tire exemption certificate through SAAQclic or at a service outlet before you drive.
The mandatory period ends March 15, but the Quebec government's page recommends waiting a few weeks after the end of the period before installing all-season or summer tires, because spring conditions can be variable. The Société de l'assurance automobile du Québec says the same in the other direction: depending on where you live in Quebec, it may be preferable to install winter tires before December 1 and keep them on after March 15. Use the weather and the road conditions where you drive, not the calendar date alone, to decide the changeover week.
No tire brand, model, or price figure is stated in this guide, because none appears on the cited official pages. No discount percentage for Ontario insurance is stated, and no Ontario studded-tire dates are stated, because neither could be verified on an official page. No British Columbia studded-tire dates are stated. No winter tire rule for any province or territory other than Quebec, British Columbia, and Ontario is stated; check that jurisdiction's own pages. The British Columbia tire-marking and tread-depth figures rest on the province's factsheet search record and should be confirmed on the factsheet itself before this guide is treated as fully grounded on that point.