Application of provincial laws
253 The laws in force in a province in relation to lines for the transmission of electricity from a place in the province to another place in that province apply in respect of parts of international power lines that are within that province.
Source
https://laws-lois.justice.gc.ca/eng/acts/C-15.1/section-253.htmlDocument officiel chez le régulateur. Citez toujours cette URL — et non la page de détail Vantage — dans les preuves de conformité.