The following section of this regulation seems to imply that the automotive hobbyist is prohibited from performing his/her own propane conversion:
12. (1) Where this Regulation requires that an appliance or any equipment be approved, no person shall,
- offer for sale, sell, rent or buy;
- use; or
- supply propane to,
an appliance or equipment unless it is approved or will be approved prior to being put into use. O. Reg. 211/01, s. 12 (1).
(2) Despite subsection (1), a person may take any of the actions set out in subsection (1) with respect to any of the following appliances or equipment even if they are not approved:
- Manually operated industrial appliances that have an input of not more than 6 kilowatts (20,000 British thermal units per hour).
- Bunsen burners.
- Stationary propane engines, and portable propane engines, that are not part of a vehicle.
- Portable propane equipment used for construction or repair of a road.
- Propane hand torches connected to a cylinder having a propane capacity of not more than five pounds by weight.
- Appliances connected to a container having a propane capacity of not more than 0.45 pounds by weight.
- Mobile asphalt or tar pots that are heated with propane.
- Propane vehicles. O. Reg. 211/01, s. 12 (2).
In actual fact, TSSA interprets subsection (2) to mean that OEM propane vehicles (vehicles supplied from the factory) do not require certification by a licensed propane mechanic. As a new vehicle, Transport Canada has certified that these vehicles meet all applicable codes.
As for work done by unlicensed mechanics (auto mechanic hobbyist), the work done by a person to his own vehicle is allowable by TSSA, provided he has the work inspected before the vehicle or modification is put into service. The hobbyist is NOT permitted to perform any work on vehicles other than his own. In essence, the law allows a person to be the master of his domain but not anyone else's.
The danger with informing people that they are permitted to do work that really should be done by a trained professional is that they can easily get themselves killed. I do not encourage anyone to perform any work that should be done by a trained and licensed professional. However, I realize that people will do these things on their own and I do not want anyone to get hurt in the process. If you want to do a propane conversion yourself, I highly recommend that you work with the licensed installer who will be inspecting the vehicle for you.
One reason that I have put propane conversion information on to the internet is to keep people from getting killed from poor workmanship and ignorance. The following conversion is an excellent example of what I am trying to prevent: http://xfrias.tripod.com/Opel_GT/Opel_GT.html