Alberta
No regulations require or prohibit the use of tire chains or studded tires. However, if you choose to use them and damage the roadway, Alberta makes a point to let you know you could be cited for the damage.
British Columbia
Chains and studded tires are fine when needed. In fact, you can be fined for not having proper tires. The Ministry of Transportation will have signs posted: “Must Carry Tire Chains, Oct.1-April 30.” In fact, the government website states “Commercial drivers who travel outside the Greater Vancouver and Greater Victoria areas in the winter are required to carry chains or other acceptable traction devices.”
Any vehicle found crossing that point without proper tires is subject to a fine. Truckers only need to carry, not install, chains at this point.
However, when encountering a sign or flashing amber lights with a message that indicates vehicles over a certain posted gross vehicle weight must use chains, then the chains must be installed. Chains on a typical tractor-trailer combination must be on all four tires of the main drive axle. There is no chain requirement on the trailer.
Manitoba
No regulations require or prohibit the use of tire chains. However, much like the boilerplate language in many states in the U.S., you can use chains when needed “for safety.”
New Brunswick
It is permissible to use tire chains and studded tires in cases of “exceptional weather conditions.” Studded snow tires are permissible at any time except from May 1 to Oct. 15.
Newfoundland and Labrador
According to provincial regulations, “a person shall not operate a motor vehicle on a highway when there is snow or ice on the surface of the highway unless” snow tires or tire chains are fitted on the drive axle.
Northwest Territories
Essentially, tire chains are allowed during icy or snow road conditions.
Nova Scotia
“It shall be permissible to use tire chains of reasonable proportions upon any vehicle when required for safety because of snow, ice or other conditions tending to cause a vehicle to slide or skid.”
Nunavut
Drivers can use tire chains in Nunavut as needed.
Ontario
Ontario is a bit trickier when it comes to studded tires. To start, they are only allowed from Sept. 1 through May 31. In order to use studded tires, the driver must be a resident of Northern Ontario (north of Parry Sound and Nipissing districts), own a business in Northern Ontario, or have road authority having jurisdiction and control of a highway in Northern Ontario. Non-Ontario residents may use studded tires if the vehicle is in Ontario for no more than 30 days.
From there, Ontario has a list of regulations regarding size and placement of the studs. Essentially, studded tires are OK in Northern Ontario. A $1,000 fine can be given for using studded tires in Southern Ontario.
Prince Edward Island
Tire chains are permissible as long as they do not “injure” the highway.
Quebec
Chains may only be used by emergency vehicles, farm tractors or any road vehicle used for snow removal or winter maintenance from Oct. 15 to May 1. Studded tires are acceptable only on passenger vehicles from Oct. 15 to May 1. There are no regulations that specifically mention heavy trucks and winter tires. Per a conversation with a representative from the Ministry of Transportation, chains and studs are prohibited on heavy trucks.
Saskatchewan
No regulations for winter tires. Studded tires and chains are allowed.
Yukon
No regulations for winter tires. Studded tires and chains are permitted.
