C-24.2, r. 32 - Regulation respecting safety standards for road vehicles

Full text
120. Tires shall comply with the following standards:
(1)  no tire shall be so worn that a wear indicator touches the road or that the depth of the tread measured in a main groove or tread design, elsewhere than at the wear indicator, is less than 3.2 mm on a front tire of a motor vehicle whose gross vehicle weight rating is 4,500 kg or more and 1.6 mm in all other cases;
(2)  at no point shall a tire be worn, cut or damaged to expose the cord or steel belt. Furthermore, a crack in the sidewall of a tire may not be deeper than 3.2 mm;
(3)  no tire shall be abnormally bulged or out of shape and no foreign material that could cause a puncture shall be stuck in the tread or in the sidewall;
(4)  a tire shall not have been recut deeper than the original grooves, unless the model was specially designed for such recutting and that feature is indicated on the sidewall;
(5)  no tire whose tread has been recapped shall be mounted on the front steering axle of an emergency vehicle, a minibus or a vehicle whose gross vehicle weight rating is 4,500 kg or more, unless the vehicle is equipped with 2 active steering axles;
(6)  at no point shall the tread or rubber compound of the sidewall be separated from the carcass of the tire, unless the tire was recapped and the separation does not exceed 6 mm in width;
(7)  tires differing in size, construction type or series shall not be installed on a same axle or a combination of axles, unless they are recognized by the manufacturer as equivalent;
(8)  it is prohibited to mount radial tires on the font and bias-ply tires on the rear, unless the vehicle has dual rear wheels;
(9)  the front wheels of a passenger vehicle shall not be of a smaller series or have a tread wider than the rear tires;
(10)  tires in a dual tire set shall not be in contact with one another or differ from other in diameter by more than 13 mm;
(11)  a tire shall not be of a size smaller than the minimum dimension indicated by the vehicle manufacturer, unless it is recognized as equivalent by the tire manufacturer; it may however be of a size greater than that indicated by the vehicle manufacturer provided that the tire does not touch the body or another component of the vehicle in every position of the suspension or steering;
(12)  a tire shall have been repaired in accordance with the tire manufacturer’s standards;
(13)  the air pressure in the tires of a same axle shall not differ by more than 10% and the pressure shall not exceed the pressure printed on the sidewall or be lower than the value determined by the manufacturer of the vehicle or of the tire;
(14)  no tire valve shall be worn down, damaged, scraped or gashed and the exposed portion of each valve shall be of sufficient length and accessible to allow for the easy inflation of the tire and pressure reading;
(15)  no tire shall bear marks or wording to indicate that it is for restricted use and unsuited for use on public roads, unless it is mounted on a truck specially adapted for farming purposes or on a farm trailer; and
(16)  tires shall be mounted on the wheel in accordance with their manufacturer’s standards.
O.C. 1483-98, s. 120; O.C. 1049-2010, s. 10; 370-2016O.C. 370-2016, s. 67.
120. Tires shall comply with the following standards:
(1)  no tire shall be so worn that a wear indicator touches the road or that the depth of the tread measured in a main groove or tread design, elsewhere than at the wear indicator, is less than 3.2 mm on a front tire of a vehicle whose gross vehicle weight rating is 4,500 kg or more and 1.6 mm in all other cases;
(2)  at no point shall a tire be worn, cracked, cut or snagged deep enough to expose the cord or steel belt;
(3)  no tire shall be abnormally bulged or out of shape and no foreign material that could cause a puncture shall be stuck in the tread or in the sidewall;
(4)  a tire shall not have been recut deeper than the original grooves, unless the model was specially designed for such recutting and that feature is indicated on the sidewall;
(5)  no tire whose tread has been recapped shall be mounted on the front axle of an emergency vehicle, a minibus or a vehicle whose gross vehicle weight rating is 4,500 kg or more, unless the vehicle is equipped with 2 front steering axles;
(6)  at no point shall the tread or rubber compound of the sidewall be separated from the carcass of the tire, unless the tire was recapped and the separation does not exceed 6 mm in width;
(7)  tires differing in size, type, construction or series shall not be installed on a same axle or a combination of axles, unless they are recognized by the manufacturer as equivalent;
(8)  it is prohibited to mount radial tires on the font and bias-ply tires on the rear, unless the vehicle has dual rear wheels;
(9)  the front wheels of a passenger vehicle shall not be of a smaller series or have a tread wider than the rear tires;
(10)  tires in a dual tire set shall not be in contact with one another or differ from other in diameter by more than 13 mm;
(11)  a tire shall not be of a size smaller than the minimum dimension indicated by the vehicle manufacturer, unless it is recognized as equivalent by the tire manufacturer; it may however be of a size greater than that indicated by the vehicle manufacturer provided that the tire does not touch the body or another component of the vehicle in every position of the suspension or steering;
(12)  a tire shall have been repaired in accordance with the tire manufacturer’s standards;
(13)  the air pressure in the tires of a same axle shall not differ by more than 10% and the pressure shall not exceed the pressure printed on the sidewall or be lower than the value determined by the manufacturer of the vehicle or of the tire;
(14)  no tire valve shall be worn down, damaged, scraped or gashed and the exposed portion of each valve shall be of sufficient length to allow for the easy inflation of the tire and pressure reading;
(15)  no tire shall bear marks or wording to indicate that it is for restricted use and unsuited for use on public roads, unless it is mounted on a truck specially adapted for farming purposes; and
(16)  unidirectional tires shall be mounted according to the tire manufacturer’s standards.
O.C. 1483-98, s. 120; O.C. 1049-2010, s. 10.