Just FYI...since this relates to Saskatchewan
only and nowhere else. From
http://www.qp.gov.sk.ca/documents/English/Regulations/Regulations/V2-1R10.pdf
(4)The tires on the steering axle of a type A-2 vehicle shall not be retreaded tires, unless the tires on that axle are of a type that cannot be transferred to another axle of the vehicle.
(10)Notwithstanding subsection (4), the administrator may approve the use of retreaded tires on a steering axle.
(oo) Type A vehicle means a self-propelled vehicle designed for operation on highways and includes a car, truck, van, motorhome, multipurpose passenger vehicle, power unit and bus as defined in CMVSS and type A-1 to type A-3 vehicles, but does not include a vintage vehicle, all-terrain vehicle, motorcyle or special mobile machine.
(pp) Type A-1 vehicle means a type A vehicle that is a car, truck, van, multipurpose passenger vehicle or truck that is 2060 millimetres or less in width.
(qq) Type A-2 vehicle means a type A vehicle that is a bus, power unit, chassis cab or truck that is more than 2060 millimetres width.
(rr) Type A-3 vehicle means a type A vehicle that is registered with the administrator as a school bus and is designed and used primarily for the transportation of school children.
(2060 millimetres is 81.1 inches)