When are winter tires mandatory in Alberta?

In Alberta, winter tires are indeed mandatory from October 1 to May 31. This time frame is set to ensure that vehicles are adequately equipped to handle the challenging winter driving conditions that often arise during these months, including snow, ice, and cold temperatures. Winter tires are specifically designed to provide better traction and handling in these adverse conditions compared to all-season tires.

Having winter tires during this period enhances safety for drivers and all road users by reducing the likelihood of accidents caused by slippery roads. It also contributes to overall traffic flow and reduces the burden on emergency services during severe weather events.

The other options do not accurately define the specific legal timeframe for when winter tires are required in Alberta, which emphasizes the importance of being prepared for winter driving conditions throughout the designated months.