There are different regulations for each province in lots of different areas including the width of tires on big trucks, but Saskatchewan is now harmonizing its wide-base single tires program with Ontario as part of a commitment from both provinces to improve internal trade.
The WBST program applies to all 12-month primary weight highways and allows permitted trucks to increase the weight on wide-based single tires that are 455 millimetres or wider by 400 kilograms to 4250 kilograms per tire.
The provincial government says in the coming months, regulations will be amended to allow trucks to use the tires without permit.
The New Generation Wide-Base Tires are a single wide tire that replaces the traditional dual tires on commercial trucks.