[...]
(2) The following definitions apply in this section and section 353.
natural gas means a mixture of gas that is composed of at least 85% methane and that may also contain other hydrocarbons that, at a temperature of 15°C and an absolute pressure of 101.325 kPa, are in a gaseous state, as well as minor amounts of non-hydrocarbon gas and impurities. (gaz naturel)
2 The following definitions apply in this Act.
gas means
(a) any hydrocarbon or mixture of hydrocarbons that, at a temperature of 15°C and a pressure of 101.325 kPa, is in a gaseous state; or