New Winter Tire Rules for BC
On October 1, 2014 the Ministry of Transportation and Infrastructure announced new winter tire rules for British Columbia. The changes are part of the Rural Highway Safety and Speed Review conducted by the Ministry about one year ago when BC residents were asked to express their opinion. From the information provided to me, it appears that the only thing that has changed is the signage beside the highway and the chain option for passenger vehicles.
In past, the signs required winter tires with sufficient tread or carrying a set of tire chains for all vehicles that passed them. Now the signs simply require winter tires that are marked with either the mountain and snowflake symbol or M+S for light vehicles and that heavier commercial vehicles carry tire chains.
Commercial vehicles are not required to be equipped with all season or winter tread tires but must carry tire chains when driving on highways designated by a sign.
If you really want proper traction to maximize acceleration, braking and cornering the best answer is matching winter tires bearing the mountain and snowflake symbol on all wheels. Some tires marked M+S may comply with the law but could provide significantly less protection. It is worth taking the time to explore your options with a knowledgeable tire supplier before the last minute.