2.1 If, in the application to a vehicle 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 shall be used in the application to the vehicle of any other portion of the section or provision.

2.2 Two wheels are considered to be one wheel if they are mounted on the same axle and the distance between the centres of their areas of contact with the ground is less than 460 mm.

2.3 In the case of any bench or split-bench seat having more than 1 270 mm of hip room, as measured in accordance with sections 6.1.34, 6.2.31 and 6.4.27 of SAE Recommended Practice J1100, Motor Vehicle Dimensions (February 2001), in a passenger car, truck or multi-purpose passenger vehicle having a GVWR of less than 4 536 kg, the seat shall be deemed to contain not less than three designated seating positions unless the seat design or vehicle design is such that the central space is not capable of being used as a seating position.

• 2.4 (1) In order to determine the prescribed class of a vehicle, any space in the vehicle designed for use by a person in a wheelchair is deemed to contain four designated seating positions for the purpose of determining the designated seating capacity if

  • (a) the vehicle was designed to have a designated seating capacity of more than 10; and

  • (b) any of the intended designated seating positions are replaced by a space designed for use by a person in a wheelchair.

• (2) In order to determine the prescribed class of a vehicle resulting from the alteration of a bus by the replacement of any designated seating position with a space designed for use by a person in a wheelchair, the space may, at the option of the manufacturer, be considered to be equivalent to four designated seating positions for the purpose of calculating the designated seating capacity.

3. Any company that intends to apply a national safety mark to a vehicle shall apply to the Minister to obtain an authorization in the form set out in Schedule II.

• 4. (1) The classes of vehicles set out in Schedule III are prescribed as classes of vehicles in respect of which these Regulations apply.

• (1.1) An incomplete vehicle is prescribed as a class of vehicle in respect of which these Regulations apply.

• (2) The prescribed classes referred to in subsections (1) and (1.1) do not include a vehicle that was manufactured 15 years or more before the date of its importation into Canada, except for a bus.