87. Where the fuel supply system of a road vehicle registered in Québec is modified to run on propane gas or where a vehicle registered in Québec and running on compressed natural gas since its manufacture bears the national safety mark within the meaning of the Motor Vehicle Safety Act or the compliance sticker provided for in that Act, the vehicle shall bear the sticker referred to in Schedule C to the Installation Code for Propane Fuel Systems and Tanks on Highway Vehicles (CAN/CSA-B149.5) inside the rear window or the rear side window of the vehicle, near the filler cap so that the sticker may be seen by the person filling the tank. The sticker shall be affixed by a mechanic holding the appropriate certificate of competency issued by the Minister of Employment and Social Solidarity.
Where the modification or manufacture of a vehicle referred to in the first paragraph takes place before the coming into force of this Regulation, the sticker referred to in Schedule C to the Installation Code for Propane Fuel Systems and Tanks on Highway Vehicles shall be affixed to the vehicle not later than 21 June 1999.