"
Alternative fuel" means
fuel that is
(a) for use in
motor vehicles to deliver direct
propulsion,
(b) less damaging to the
environment than
conventional fuels, and
(c) prescribed by
regulation,
including, without limiting the generality of the foregoing,
ethanol,
methanol,
propane gas,
natural gas,
hydrogen or
electricity when used as a sole source of
direct propulsion energy.
Source:
Canadian Alternative Fuels Act.