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– Studded tires are allowed and can be used between November 1st and April 30th. Chain law in this province says that chains are required on drive wheels when there is snow or ice on the surface of the highway. The minister may, by order, prohibit vehicles from being driven or operated on a highway where those vehicles are not equipped with chains or winter tires or both, and a person who does not comply with the order is guilty of an offense and can be fined up to $400 Canadian. No one is allowed to drive on the highway when snow or ice is on the surface unless snow tires or tire chains are installed on the tires of the driving axle. Tire width should be 445 mm or greater tread should be at least 1.5 mm.
A person shall not operate a motor vehicle on a highway when there is snow or ice on the surface of the highway unless
(a) in the case of a vehicle where the driving power is transmitted from the engine to the rear wheels, those rear wheels are fitted with tires specifically designed and designated by the manufacturer as mud and snow tires, or tire chains; and
(b) in the case of a vehicle where the driving power is transmitted from the engine to the front wheels, those front wheels are fitted with tires specifically designed and designated by the manufacturer as mud and snow tires, or tire chains.
(2) A person shall not
(a) operate a vehicle with a mixture of construction types consisting of radial ply on the front and bias or belted bias tires on the rear; or
(b) operate a vehicle having a gross or curb mass in excess of 4,500 kilograms with a mixture of radial and bias ply tires on one axle or on a tandem drive axle configuration.
(3) Paragraph (2)(a) does not apply to a vehicle fitted with dual rear tires or to a temporary spare tire.
(4) A person shall not operate a motor vehicle with an undersize or overloaded tire mounted on a rim or with a tire so mounted and exhibiting the following conditions:
(a) a cord break or air leak;
(b) tread damage including cracks, cuts or snags in excess of 25 millimetres in any direction and deep enough to expose the cords;
(c) sidewall cracks, scuffs, cuts or snags to the extent that the cords are damaged or exposed;
(d) bumps, bulges or lumps related to tread or sidewall separation or partial failure of the tire structure including the bead area;
(e) regrooved or recut treads, except tires identified by the word "REGROOVABLE" moulded in by the manufacturer;
(f) flat tire on any assembly;
(g) an area worn to a point where 2 consecutive tread wear indicators contact the road in any 2 adjacent grooves;
(h) in the case of a motor vehicle or trailer with a registered maximum gross mass or curb mass of 4,500 kilograms or less worn to a point where less than 1.5 millimetres of tread depth remains and in the case of a motor vehicle or trailer with a registered maximum gross mass or curb mass in excess of 4,500 kilograms worn to a point where less than 3 millimetres of tread depth remains.
Tire pressures of tires on commercial vehicles shall be maintained at manufacturer's specifications and the following standards apply to commercial vehicles:
(a) a front tire shall not have been altered by the addition of material to produce a new tread surface;
(b) a mixture consisting of 60 or 50 series tires on the front and other series tires on the rear shall not be fitted;
(c) notwithstanding paragraph (2)(b), a combination of construction types or sizes, except where stated to be equivalent by tire industry standards, shall not be fitted on an axle;
(d) tires in a dual tire set shall not be in contact with each other or differ from each other in overall diameter by more than 13 millimetres or in circumference by more than 38 millimetres; and
(e) a commercial vehicle shall not be fitted with a tire that
(i) bears the wording "not for highway use", "farm use only", "competition circuit use only" or other wording or lettering indicating that the tire was not designed for highway use, or
(ii) bears the letters "SL", "NHS" or "TG" after tire designation.Calculate Oversize/Overweight Load Regulations and Prices Instantly with Oversize.io