Pursuant to the Motor Vehicle Safety Act and the Motor Vehicle Tire Safety Regulations, 1995,

[company name and address]

is authorized to use and apply the national safety mark, and the authorization number , to any motor vehicle tire of a class referred to in sections 5 and 6 of the Motor Vehicle Tire Safety Regulations, 1995, on condition that the tire conforms to all the applicable Canada Motor Vehicle Safety Standards.

The national safety mark and the authorization number are applied at the following premises: [identification of the premises]

This ministerial authorization expires on

Issued in Ottawa on , 20

for the Minister of Transport, Infrastructure and Communities

PART I

Notes:

• 1 

  For tires less than 155 mm in cross-section or less than 330 mm in bead diameter, the minimum height of the lettering of the Tire Identification Number may be 4 mm.
• 2 

  The characters of the National Safety Mark and the Tire Identification Number shall be moulded into or onto the tire at a height or depth of not less than 0.5 mm and not more than 1 mm, as measured from the immediate surrounding surface of the tire.
• 3 

  The Identification Number shall be in Futura Bold, Modified, Condensed or Gothic characters or any other font approved by the Minister.
• 4 

  The date of manufacture that is part of the Tire Identification Number shall be permanently moulded or laser etched, at the manufacturer’s option. The date of importation that is part of the Importer Identification Number shall be permanently moulded.

PART II

General

• • 1 (1) Every tire of a particular size designation and type shall

    • (a) be designed to fit a rim having a designated diameter of 254, 279, 305, 330, 356, 381, 406, 432, 457 or 483 mm (10, 11, 12, 13, 14, 15, 16, 17, 18 or 19 in.) or 320, 340, 345, 365, 370, 390, 400, 415, 425, 450, 475 or 500 mm;

    • (b) be designed to fit each rim specified for a tire of that size designation and type in a tire and rim document;

    • (c) have, in the case of CT tires, a maximum permissible inflation pressure of 290, 330, 350 or 390 kPa (42, 48, 51 or 57 p.s.i.);

    • (d) have a maximum permissible inflation pressure of 220, 240, 250, 275, 280, 300, 340, 350 or 415 kPa (32, 35, 36, 40, 41, 44, 50, 51 or 60 p.s.i.);

    • (e) have load ratings and corresponding inflation pressures for a tire of that size designation and type as specified in a tire and rim document;

    • (f) subject to subsection (2), have a maximum load rating that is not less than the maximum load rating specified for a tire of that size designation and type in a tire and rim document; and

    • (g) incorporate a treadwear indicator that will provide a visible indication that the tire has worn to a tread depth of 1.6 mm (1/16 in.).

  • (2) Where a publication referred to in subsection 7(2) of these Regulations sets out more than one maximum load rating for a tire of a particular size designation and type, the required maximum load rating for the purposes of paragraph (1)(f) shall be not less than the lowest of the maximum load ratings set out in the publication.

Rules Respecting Testing

• 2 For the purpose of conducting tests under subsections 4(2), 5(2), 6(2), 7(2) and 8(2), three similar new tires shall be used as follows:

  • (a) one tire for the test for physical dimensions, the bead unseating resistance test and the tire strength test, in that sequence;

  • (b) one tire for the tire endurance test; and

  • (c) one tire for the high speed performance test.

• 3 Before being subjected to the tire endurance test set out in subsection 7(2) or the high speed performance test set out in subsection 8(2), a tire of a particular size designation and type shall have no visible evidence of tread separation, sidewall separation, ply separation, cord separation, innerliner separation, bead separation, chunking, broken cords, cracking or open splice.

Physical Dimensions of Tires

• • 4 (1) Where a tire of a particular size designation and type is tested for physical dimensions in accordance with subsection (2), the tire shall have

    • (a) a tolerance in respect of section width and overall width that

      • (i) in the case of a tire with a maximum permissible inflation pressure of 220, 250 or 275 kPa (32, 36 or 40 p.s.i.), is not greater than seven per cent in excess of the section width specified in a tire and rim document for a tire of that size designation and type, or

      • (ii) in the case of a tire with a maximum permissible inflation pressure of 240, 280, 290, 300, 330, 340, 350, 390 or 415 kPa (35, 41, 42, 44, 48, 50, 51, 57 or 60 p.s.i.), is not greater than seven per cent in excess of the section width specified in a tire and rim document for a tire of that size designation and type, or 10 mm (0.4 in.), whichever is greater; and

    • (b) a size factor that is not less than the minimum size factor specified in a tire and rim document for a tire of that size designation and type.

  • (2) The test for the physical dimensions of a tire shall be carried out under uniform ambient conditions by

    • (a) mounting the tire on a test rim and inflating it to the pressure set out in column II of an item of Table II for the maximum permissible inflation pressure set out in column I of that item;

    • (b) conditioning the tire and rim assembly at ambient temperature for at least 24 hours and then adjusting the inflation pressure of the conditioned tire to the pressure referred to in paragraph (a);

    • (c) measuring with calipers the section width and overall width of the tire at six points approximately equally spaced around the tire circumference;

    • (d) recording the average of the measurements of the section width and overall width, respectively; and

    • (e) determining the tire’s outer diameter by measuring the maximum circumference of the tire and dividing it by pi(3.14).

Bead Unseating Resistance of Tubeless Tires

• • 5 (1) Where a tubeless tire of a particular size designation and type is tested for bead unseating resistance in accordance with subsection (2), the tire shall, using the test rim width specified in a tire and rim document for a tire of that size designation and type,

    • (a) in the case of a tire with a maximum permissible inflation pressure other than 415 kPa (60 p.s.i.), require an applied force to unseat the tire bead at the point of contact of that force of not less than

      • (i) 6 670 N (1,500 lb.) for a tire with a designated section width, as marked on the sidewalls, of less than 155 mm (6 in.),

      • (ii) 8 895 N (2,000 lb.) for a tire with a designated section width, as marked on the sidewalls, of 155 mm (6 in.) or more but less than 205 mm (8 in.), and

      • (iii) 11 120 N (2,500 lb.) for a tire with a designated section width, as marked on the sidewalls, of 205 mm (8 in.) or more; and

    • (b) in the case of a tire with a maximum permissible inflation pressure of 415 kPa (60 p.s.i.), require an applied force to unseat the tire bead at the point of contact of that force of not less than

      • (i) 6 670 N (1,500 lb.) for a tire with a maximum load rating of less than 400 kg (880 lb.),

      • (ii) 8 895 N (2,000 lb.) for a tire with a maximum load rating of 400 kg (880 lb.) or more but less than 635 kg (1,400 lb.), and

      • (iii) 11 120 N (2,500 lb.) for a tire with a maximum load rating of 635 kg (1,400 lb.) or more.

  • (2) The tubeless tire bead unseating resistance test shall be performed by

    • (a) washing the tire, drying it at the beads and mounting it without lubrication or adhesive onto a clean, painted test rim;

    • (b) inflating the tire to the applicable inflation pressure set out in column II of an item of Table II for the maximum permissible inflation pressure set out in column I of that item;

    • (c) mounting the tire and rim assembly onto the bead unseating fixture shown in Figure 1 and

      • (i) for a tire that has a maximum permissible inflation pressure of other than 415 kPa (60 p.s.i.), forcing the bead unseating block, as shown in Figure 2, against the tire sidewall, and

      • (ii) for a tire that has a maximum permissible inflation pressure of 415 kPa (60 p.s.i.), forcing the bead unseating block, as shown in Figure 3, against the tire sidewall;

    • (d) applying a force through the bead unseating block to the tire outer sidewall at the dimension specified in the table to Figure 1 for the applicable wheel size at a rate of 50.8 mm/min (2 in./min.), with the load arm substantially parallel to the tire and rim assembly at the time of engagement;

    • (e) increasing the force until the bead unseats or the applicable value set out in paragraph (1)(a) is reached or, for a tire that has a maximum permissible inflation pressure of 415 kPa (60 p.s.i.), until the bead unseats or the applicable value set out in paragraph (1)(b) is reached; and

    • (f) repeating the test at not less than four points approximately equally spaced around the tire circumference.

Tire Strength

• • 6 (1) Where a tire is tested for strength in accordance with subsection (2), the tire shall meet the applicable minimum static breaking energy value set out in column II or III of an item of Table I for the maximum permissible inflation pressure set out in column I of that item.

  • (2) The strength of a tire shall be tested by

    • (a) mounting the tire on a test rim and inflating it to the applicable inflation pressure set out in column II of an item of Table II for the maximum permissible inflation pressure set out in column I of that item;

    • (b) conditioning the tire and rim assembly at ambient temperature for at least three hours and then adjusting the inflation pressure of the conditioned tire to the pressure referred to in paragraph (a);

    • (c) forcing, at a rate of 50.8 mm/min (2 in./min.) perpendicularly into a point located on a tread rib of the tire that is as near to the centreline of the tread as possible, a cylindrical steel plunger that has a hemispherical end and a diameter of 19 mm (3/4 in.);

    • (d) recording the force that was applied to the cylindrical steel plunger and the distance the plunger moved from the point at which the pressure was applied to the point the plunger reached either immediately before puncturing the tire or immediately before reaching the rim, if the tire was not punctured, at five points approximately equally spaced around the tire circumference;

    • (e) computing the static breaking energy value at each of the points at which the cylindrical steel plunger was forced into the tread, by using the force and distance values recorded pursuant to paragraph (d) in the formula

      W = (F × D ) ÷ 2 

      where

      W

      is the static breaking energy, expressed in joules (inch-pounds),

      F

      is the force, expressed in newtons (pounds), and

      D

      is the distance, expressed in metres (inches); and

    • (f) determining the static breaking energy value for the tire by computing the average of the values obtained pursuant to paragraph (e).

Tire Endurance

• • 7 (1) Where a tire is tested for endurance, either alone or simultaneously with not more than five other tires, in accordance with subsection (2), at the end of the test the tire shall

    • (a) show no visible evidence of tread separation, sidewall separation, ply separation, cord separation, innerliner separation, bead separation, chunking, broken cords, cracking or open splice; and

    • (b) have an inflation pressure that is not less than the inflation pressure at the beginning of the test.

  • (2) The endurance of a tire shall be tested by

    • (a) mounting the tire on a test rim and inflating it to the applicable inflation pressure set out in column II of an item of Table II for the maximum permissible inflation pressure set out in column I of that item;

    • (b) conditioning the tire and rim assembly at 38°C ± 3°C (100°F ± 5°F) for at least three hours and then, immediately before testing, adjusting the inflation pressure of the conditioned tire to the pressure referred to in paragraph (a);

    • (c) mounting the tire and rim assembly on a test axle and pressing the tread against a flat-faced steel test wheel that is 1 707.6 mm (67.23 in.) in diameter and at least as wide as the section width of the tire;

    • (d) maintaining the temperature in the test area at 38°C ± 3°C (100°F ± 5°F);

    • (e) running the tire at a test wheel speed of 80 km/h (50 m.p.h.) without pressure adjustments or other interruptions for

      • (i) four hours with a test load corresponding to 85 per cent of the maximum load rating as marked on the sidewall,

      • (ii) six hours with a test load corresponding to 90 per cent of the maximum load rating as marked on the sidewall, and

      • (iii) 24 hours with a test load corresponding to the maximum load rating as marked on the sidewall;

    • (f) measuring the inflation pressure of the tire immediately after running it for the total number of hours required by paragraph (e); and

    • (g) deflating the tire, removing it from the rim after allowing it to cool and inspecting it for visible evidence of tread separation, sidewall separation, ply separation, cord separation, innerliner separation, bead separation, chunking, broken cords, cracking or open splice.

High Speed Performance

• • 8 (1) Where a tire is tested for high speed performance, either alone or simultaneously with not more than five other tires, in accordance with subsection (2), at the end of the test the tire shall

    • (a) show no visible evidence of tread separation, sidewall separation, ply separation, cord separation, innerliner separation, bead separation, chunking, broken cords, cracking or open splice; and

    • (b) have an inflation pressure that is not less than the inflation pressure at the beginning of the test.

  • (2) The high speed performance of a tire shall be tested by

    • (a) mounting the tire on a test rim and inflating it to the applicable inflation pressure set out in column III of an item of Table II for the maximum permissible inflation pressure set out in column I of that item;

    • (b) conditioning the tire and rim assembly at 38°C ± 3°C (100°F ± 5°F) for at least three hours and then, immediately before testing, adjusting the inflation pressure of the conditioned tire to the pressure referred to in paragraph (a);

    • (c) mounting the tire and rim assembly on a test axle, applying a force on the tire of 88 per cent of the maximum load rating as marked on the sidewall and pressing the tread against a flat-faced steel test wheel 1 707.6 mm (67.23 in.) in diameter and at least as wide as the section width of the tire;

    • (d) running the tire for two hours at a test wheel speed of 80 km/h (50 m.p.h.) with the force described in paragraph (c) applied to it;

    • (e) allowing the tire to cool to 38°C ± 3°C (100°F ± 5°F) and then, immediately before continuing the test, adjusting the inflation pressure of the tire to the pressure referred to in paragraph (a);

    • (f) running the tire with the force described in paragraph (c) applied to it for 30 minutes at each of the following test wheel speeds, namely, 121 km/h (75 m.p.h.), 129 km/h (80 m.p.h.) and 137 km/h (85 m.p.h.);

    • (g) measuring the inflation pressure of the tire immediately after running it for the total number of minutes required by paragraph (f); and

    • (h) deflating the tire, removing it from the rim after allowing it to cool and inspecting it for visible evidence of tread separation, sidewall separation, ply separation, cord separation, innerliner separation, bead separation, chunking, broken cords, cracking or open splice.

TABLE IMinimum Static Breaking Energy Values

• Return to footnote ^*For CT tires only

• Return to footnote ^*For CT tires only

• Return to footnote ^*For CT tires only

FIGURE 2 — BEAD UNSEATING BLOCKFor tires with a maximum permissible inflation pressure of other than 415 kPa (60 p.s.i.)

FIGURE 3 — BEAD UNSEATING BLOCKFor tires with a maximum permissible inflation pressure of 415 kPa (60 p.s.i.)

General

• • 1 (1) Every tire of a particular size designation and type shall

    • (a) be designed to fit each rim specified for a tire of that size designation and type in a tire and rim document;

    • (b) have load ratings and corresponding tire inflation pressures for a tire of that size designation and type as specified in a tire and rim document; and

    • (c) subject to subsection (2), have a maximum load rating that is not less than the maximum load rating specified for a tire of that size designation and type in a tire and rim document.

  • (2) Where publication referred to in subsection 7(2) of these Regulations sets out more than one maximum load rating for a tire of a particular size designation and type, the required maximum load rating shall not be less than the lowest of the maximum load ratings set out in the publication.

Tread Wear Indicators

• • 2 (1) Subject to subsection (3), every tire that has a rim diameter of 304.8 mm (12 in.) or more shall incorporate at least six treadwear indicators, spaced approximately equally around the circumference of the tire, in such a manner that the indicators will provide visible indication where the tire has worn to a tread depth of 1.6 mm (1/16 in.).

  • (2) Subject to subsection (3), every tire that has a rim diameter of less than 304.8 mm (12 in.) shall incorporate at least three treadwear indicators, spaced approximately equally around the circumference of the tire, in such a manner that the indicators will provide visible indication where the tire has worn to a tread depth of 1.6 mm (1/16 in.).

  • (3) Every motorcycle tire shall incorporate at least three treadwear indicators, spaced approximately equally around the circumference of the tire, in such a manner that the indicators will provide visible indication where the tire has worn to a tread depth of 0.8 mm (1/32 in.).

Rules Respecting Testing

• 3 For the purpose of testing, in accordance with subsections 5(2), 6(2) and 7(2), the strength, endurance and high speed performance of a tire, a new tire shall be used for each test.

• 4 Before being subjected to the tire endurance test set out in subsection 6(2) or the high speed performance test set out in subsection 7(2), a tire of a particular size designation and type shall have no visible evidence of tread separation, sidewall separation, ply separation, cord separation, innerliner separation, bead separation, chunking, broken cords, cracking or open splices.

Tire Strength

• • 5 (1) Where a tire is tested for strength in accordance with subsection (2), the tire shall meet the applicable minimum static breaking energy values set out in Table I.

  • (2) The strength of a tire shall be tested by

    • (a) mounting the tire on a test rim and inflating it to the inflation pressure corresponding to the maximum single load as moulded onto or into the tire or, where both a maximum dual load and a maximum single load are marked on the tire, corresponding to the maximum dual load so marked;

    • (b) conditioning the assembled tire and rim at room temperature for at least three hours and then adjusting the inflation pressure of the conditioned tire to the tire inflation pressure referred to in paragraph (a);

    • (c) forcing, at a rate of 50.8 mm/min (2 in./min) perpendicularly into a test point located on a tread rib of the tire that is as near to the centreline of the tread as possible, a cylindrical steel plunger that has a hemispherical end and has a diameter specified in Table I for that class of tire;

    • (d) recording the force that was applied to the cylindrical steel plunger and the distance it moved from the point at which the pressure was applied to the point it reached either immediately before puncturing the tire or immediately before reaching the rim if the tire was not punctured,

      • (i) at five test points equally spaced around the circumference of the tire, where the tire is designed to fit a rim having a diameter greater than 304.8 mm (12 in.), or

      • (ii) at three test points equally spaced around the circumference of the tire, where the tire is designed to fit a rim having a diameter of 304.8 mm (12 in.) or less;

    • (e) computing the static breaking energy values at each test point at which the cylindrical steel plunger was forced into the tread rib by using the force and distance values recorded pursuant to paragraph (d) in the formula

      W = (F × D ) ÷ 2 

      where

      W

      is the static breaking energy, expressed in joules (inch-pounds),

      F

      is the force, expressed in newtons (pounds), and

      D

      is the distance, expressed in metres (inches); and

    • (f) determining the static breaking energy value for the tire by computing the average of the values obtained pursuant to paragraph (e).

Tire Endurance

• • 6 (1) Where a tire is tested for endurance in accordance with subsection (2), the tire shall

    • (a) at the end of the test, have

      • (i) no visible evidence of tread separation, sidewall separation, ply separation, cord separation, innerliner separation, bead separation, chunking, broken cords, cracking or open splices, and

      • (ii) a tire inflation pressure that is not less than the tire inflation pressure at the beginning of the test; and

    • (b) meet the applicable requirements for endurance set out in subsection (2) where tested on a test wheel either alone or simultaneously with up to five other tires.

  • (2) The tire endurance test shall be performed by

    • (a) mounting the tire on a test rim and inflating it to the inflation pressure corresponding to the maximum single load rating as marked on the sidewall;

    • (b) conditioning the assembled tire and rim at 38°C ± 3°C (100°F ± 5°F) for at least three hours and then adjusting the inflation pressure of the conditioned tire to that referred to in paragraph (a);

    • (c) mounting the assembled tire and rim on a test axle and pressing the tread of the tire against a flat-faced steel test wheel that is 1 707.6 mm (67.23 in.) in diameter and at least as wide as the section width of the tire;

    • (d) maintaining the air surrounding the test area at 38°C ± 3°C (100°F ± 5°F);

    • (e) running the tire for periods of 7 hours, 16 hours and 24 hours, under the test load and at the test wheel speed for the particular period as specified in Table II, without any adjustment to the inflation pressure of the tire;

    • (f) measuring the inflation pressure of the tire immediately after running it for the total number of hours required by paragraph (e); and

    • (g) deflating the tire, removing it from the rim after allowing it to cool and inspecting it for visible evidence of tread separation, sidewall separation, ply separation, cord separation, innerliner separation, bead separation, chunking, broken cords, cracking or open splices.

High Speed Performance

• • 7 (1) Where a motorcycle tire or a tire that is designed to fit a rim having a diameter of 368.3 mm (14.5 in.) or less and that has a load range designation of “A”, “B”, “C” or “D” moulded into or onto the sidewalls in accordance with subparagraph 10(1)(a)(viii) of these Regulations, other than a tire having a speed restriction of 88.5 km/h (55 m.p.h.) or less moulded into or onto the sidewalls in accordance with subparagraph 10(1)(a)(iii) of these Regulations, is subjected to the high speed performance test in accordance with subsection (2), the tire shall

    • (a) at the end of the test, have

      • (i) no visible evidence of tread separation, sidewall separation, ply separation, cord separation, innerliner separation, bead separation, chunking, broken cords, cracking or open splices, and

      • (ii) a tire inflation pressure that is not less than the tire inflation pressure at the beginning of the test; and

    • (b) meet the requirement of the high speed performance test referred to in subsection (2) where tested on a test wheel alone or simultaneously with not more than five other tires.

  • (2) The high speed performance test shall be performed by

    • (a) mounting the tire on a test rim and inflating it to the inflation pressure corresponding to the maximum single load rating as marked on the sidewall;

    • (b) conditioning the assembled tire and rim at 38°C ± 3°C (100°F ± 5°F) for at least three hours and then adjusting the inflation pressure of the conditioned tire to that referred to in paragraph (a);

    • (c) mounting the assembled tire and rim on a test axle and applying a force on the tire of 88 per cent of the maximum single load rating as marked on the sidewall and pressing the tread of the tire against a flat-faced steel test wheel 1 707.6 mm (67.23 in.) in diameter and at least as wide as the section width of the tire;

    • (d) running the tire for two hours at a test wheel speed of 80 km/h (50 m.p.h.) with the force described in paragraph (c) applied to it;

    • (e) allowing the tire to cool to 38°C ± 3°C (100°F ± 5°F) and then adjusting the inflation pressure of the tire to that referred to in paragraph (a);

    • (f) running the tire, with the force described in paragraph (c) applied to it, for 30 minutes at each of the following test wheel speeds, namely, 121 km/h (75 m.p.h.), 129 km/h (80 m.p.h.) and 137 km/h (85 m.p.h.);

    • (g) measuring the inflation pressure of the tire immediately after running it for the total number of minutes required by paragraph (f); and

    • (h) deflating the tire, removing it from the rim after allowing it to cool and inspecting it for visible evidence of tread separation, sidewall separation, ply separation, cord separation, innerliner separation, bead separation, chunking, broken cords, cracking or open splices.

• NOTE: For rayon cord tires, applicable energy values are 60 per cent of those in the Table.

• Return to footnote ⁽¹⁾4 hours for tires subject to high speed requirements

• Return to footnote ⁽²⁾6 hours for tires subject to high speed requirements

• 1 The address of the Minister of Transport referred to in subsection 7(1) of these Regulations is

  Minister of Transport

  c/o Road Safety and Motor Vehicle Regulation Directorate

  Department of Transport

  Transport Canada Building

  Place de Ville

  Ottawa, Ontario

  K1A 0N5

• 1 Name of the manufacturer of the tire:

  

• 2 Name of the person importing the tire:

  

• 3 The brand name, type and size designation of the tire:

  

• 4 The purpose of the importation:

  

I, the undersigned, (Authorized representative), declare that the information set out in this declaration is true and that

• (a) the tire will be used in Canada solely for purposes of exhibition, demonstration, evaluation or testing, pursuant to paragraph 7(1)(a) of the Motor Vehicle Safety Act; and

• (b) the tire will remain in Canada for not longer than one year or such other period as the Minister specifies.Footnote ^*

  • Return to footnote ^*Note: Subsection 7(5) of the Motor Vehicle Safety Act prohibits a person who signs a declaration referred to in paragraph 7(1)(a) of the Act to use or dispose of a tire that is the subject of the declaration other than in accordance with the terms of the declaration.

Signature of authorized representativeDate