GGPPA's constitutionality for encroaching on the provincial power to legislate over their natural resources. The The GGPPA is a federal law which aims to put a price on GHG emissions in Canada through binding "minimum national standards" on Canada's federal government and its provinces and territories. The pricing standards are divided in two parts: a regulatory charge on carbon-based fuels and an output-based emissions trading system for polluting industries. The GGPPA requires that all provincial and territorial governments establish a pollution pricing scheme that meets the national minimum price per tonne of carbon dioxide equivalent and establish emission caps. A federally managed