The APA places a greater priority on performance on uncleared roads over handling on dry payment, which accounts for differences between the APA’s recommendations and published reports from some other sources. There’s also the security issue and for these who are watching their income, winter tires can lower your insurance rates. Most B.C. highways call for passenger vehicles to use M+S or mountain/snowflake tires, and industrial vehicles to carry chains among October 1 and March 31. M+S tires are a winter tire for compliance with current highway signage specifications. To be extra precise, after the temperature drops to seven degrees Celsius, the rubber compound in all-season tires grows stiffer – stiff sufficient to cause challenges.