Motor Vehicle Tire Safety Regulations (SOR/2013-198)

Interpretation

Marginal note:Definitions

• 1 (1) The following definitions apply in these Regulations.

  Act

  Act means the Motor Vehicle Safety Act. (Loi)

  bead

  bead means the portion of a tire that is made of steel wires wrapped or reinforced by plies and that is shaped to fit the rim. (talon)

  bias ply tire

  bias ply tire means a tire in which the ply cords that extend to the beads are laid at alternate angles that are substantially less than 90° to the centreline of the tread. (pneu à carcasse diagonale)

  CMVSS

  CMVSS means Canada Motor Vehicle Safety Standard. (NSVAC)

  FI tire

  FI tire means a tire designed for use only on farm implements that are occasionally driven or drawn on a road. (pneu pour instruments aratoires)

  load rating

  load rating means the maximum load a tire is rated to carry at a given inflation pressure. (charge nominale)

  maximum load rating

  maximum load rating means the load rating of a tire at the maximum permissible inflation pressure for that tire. (limite de charge nominale)

  maximum permissible inflation pressure

  maximum permissible inflation pressure means the maximum cold inflation pressure to which a tire may be inflated. (pression maximale permise de gonflage)

  ply

  ply means a layer of rubber-coated parallel cords. (pli)

  radial ply tire

  radial ply tire means a tire in which the ply cords that extend to the beads are laid at substantially 90° to the centreline of the tread. (pneu à carcasse radiale)

  rim

  rim means a support for a tire or a tire-and-tube assembly on which the beads are seated. (jante)

  sidewall

  sidewall means the portion of a tire that is between the tread and the bead. (flanc)

  ST tire

  ST tire means a tire designed for use only on trailers drawn on a road. (pneu à usage spécial)

  tread

  tread means the portion of a tire that comes into contact with the road. (bande de roulement)

  TSD 109

  TSD 109 means Technical Standards Document No. 109, New Tires and Certain Specialty Tires, as amended from time to time. (DNT 109)

  TSD 119

  TSD 119 means Technical Standards Document No. 119, New Tires for Motor Vehicles With a GVWR of More Than 4 536 kg and Motorcycles, as amended from time to time. (DNT 119)

  TSD 139

  TSD 139 means Technical Standards Document No. 139, New Radial Ply Tires for Motor Vehicles With a GVWR of 4 536 kg or Less, as amended from time to time. (DNT 139)

  T-type temporary-use spare tire

  T-type temporary-use spare tire means a temporary-use spare tire that is designed for use at inflation pressures that are higher than those established for standard and reinforced tires. (pneu de secours de type T à usage temporaire)

• Marginal note:Terms defined in the MVSR

  (2) In these Regulations, GVWR, light-truck tire, motorcycle, passenger car, rim diameter and trailer have the same meaning as in subsection 2(1) of the Motor Vehicle Safety Regulations.

• Marginal note:Terms defined in TSD 109, 119 or 139

  (3) For the purposes of these Regulations, words and expressions used in TSD 109, TSD 119 or TSD 139 and not defined in that technical standards document but defined in either of those other technical standards documents have the same meaning as in that other technical standards document.

Marginal note:System of measurement

2 If, in the application to a tire of a portion of a section of these Regulations or a portion of a provision of a technical standards document, either the metric or the imperial system of measurement is used, the same system of measurement must be used in the application to the tire of any other portion of the section or provision.

Prescribed Classes of Equipment and Prescribed Standards

CMVSS 109 — New Tires and Certain Specialty Tires

Marginal note:TSD 109

• 3 (1) The following tires are prescribed as a class of equipment for the purposes of sections 4 and 5 of the Act and must conform to the requirements of TSD 109 and section 6:

  • (a) radial ply tires designed for use on a passenger car manufactured before January 1, 1975;

  • (b) bias ply tires; and

  • (c) T-type temporary-use spare tires.

• Marginal note:Maximum permissible inflation pressure

  (2) The maximum permissible inflation pressure referred to in S4.3(b) of TSD 109 must be expressed in kilopascals, and may in addition, at the manufacturer’s option, be expressed in pounds per square inch.

• Marginal note:Maximum load rating

  (3) The maximum load rating referred to in S4.3(c) of TSD 109 must be expressed in kilograms, and may in addition, at the manufacturer’s option, be expressed in pounds.

• (4) [Repealed, SOR/2014-307, s. 33]

CMVSS 119 — New Tires for Motor Vehicles With a GVWR of More Than 4 536 kg and Motorcycles

Marginal note:TSD 119

• 4 (1) The following tires, other than tires of the class prescribed by subsection 3(1), are prescribed as a class of equipment for the purposes of sections 4 and 5 of the Act and must conform to the requirements of TSD 119 and section 6:

  • (a) tires designed for use on a motor vehicle with a GVWR of more than 4 536 kg;

  • (b) tires designed for use on a motorcycle;

  • (c) light-truck tires with a tread depth of 1.43 cm or greater that are designed for use on a motor vehicle with a GVWR of 4 536 kg or less;

  • (d) ST tires;

  • (e) FI tires; and

  • (f) tires with a rim diameter code of 12 or lower.

• Marginal note:Table III to TSD 119

  (2) For the purposes of subsection (1), Table III to TSD 119 is replaced by Table III to this subsection.

  Description	Load range	Test wheel speed		Test load: Percent of maximum load rating			Total test revolutions (thousands)
  		km/h	r/m	I — 7 hours	II — 16 hours	III — 24 hours
  Speed restricted service: 90 km/h (55 mph)	All	40	125	66	84	101	352.5
  80 km/h (50 mph)	C, D	48	150	75	97	114	423.0
  80 km/h (50 mph)	E, F, G, H, J, L	32	100	66	84	101	282.0
  56 km/h (35 mph)	All	24	75	66	84	101	211.5
  Motorcycle	All	80	250	100Footnote for Table III — Endurance Test Schedule 1	108Footnote for Table III — Endurance Test Schedule 2	117	510.0Footnote for Table III — Endurance Test Schedule 1,Footnote for Table III — Endurance Test Schedule 2
  All Other	A, B, C, D	80	250	75Footnote for Table III — Endurance Test Schedule 1	97Footnote for Table III — Endurance Test Schedule 2	114	………….
  	E	64	200	70	88	106	564.0
  	F	64	200	66	84	101	564.0
  	G	56	175	66	84	101	493.5
  	H, J, L, N	48	150	66	84	101	423.0

  • Return to footnote ¹4 hours for tire sizes subject to high speed requirements (S6.3)

  • Return to footnote ²6 hours for tire sizes subject to high speed requirements (S6.3)

• (3) [Repealed, SOR/2014-307, s. 34]

CMVSS 139 — New Radial Ply Tires for Motor Vehicles With a GVWR of 4 536 kg or less

Marginal note:TSD 139

• 5 (1) Tires, other than tires of a class prescribed by subsection 3(1) or 4(1), that are radial ply tires designed for use on a motor vehicle with a GVWR of 4 536 kg or less that was manufactured on or after January 1, 1975 are prescribed as a class of equipment for the purposes of sections 4 and 5 of the Act and must conform to the requirements of TSD 139 and section 6.

• Marginal note:Maximum permissible inflation pressure

  (2) The maximum permissible inflation pressure referred to in S5.5(c) of TSD 139 must be expressed in kilopascals, and may in addition, at the manufacturer’s option, be expressed in pounds per square inch.

• Marginal note:Maximum load rating

  (3) The maximum load rating referred to in S5.5(d) of TSD 139 must be expressed in kilograms, and may in addition, at the manufacturer’s option, be expressed in pounds.

• Definition of winter tire

  (4) For the purposes of TSD 139, winter tire means a tire that

  • (a) meets one of the following snow traction requirements:

    • (i) when tested using the snow traction test described in ASTM F1805 - 06, Standard Test Method for Single Wheel Driving Traction in a Straight Line on Snow- and Ice-Covered Surfaces, with medium pack snow and a test load equal to 74% of the test inflation rated load described in that test method, attains a traction index equal to or greater than 110 compared to a standard reference test tire that meets the requirements of ASTM E1136 - 10, Standard Specification for P195/75R14 Radial Standard Reference Test Tire; or

    • (ii) when tested using the snow traction test described in ASTM F1805 - 20, Standard Test Method for Single Wheel Driving Traction in a Straight Line on Snow- and Ice-Covered Surfaces, with medium pack snow and a test load equal to 74% of the test inflation rated load described in that test method, attains a traction index equal to or greater than 112 compared to a standard reference test tire that meets the requirements of any version of ASTM F2493, Standard Specification for P225/60R16 97S Radial Standard Reference Test Tire, in effect within the less-than-two-year period referred to in section 9.1 of ASTM F1805 - 20; and

  • (b) is marked on at least one sidewall with the Alpine Symbol specified in S5.5(i) of TSD 139.

• (5) [Repealed, SOR/2014-307, s. 35]