The "Charter of Human Rights and Freedoms" is called quasi-constitutional because, according to section 52, no provision of any other Act passed by the Quebec National Assembly may derogate from sections 1 to 38, unless such Act expressly states that it applies despite the charter. A total impossibility to adopt derogating laws could be considered incompatible with parliamentary sovereignty, a fundamental principle in political systems following the British tradition; however, Canada, of which Quebec is a province, has a tradition of constitutional supremacy. Its Constitution, which includes the "Canadian Charter of Rights and Freedoms", is supreme, binding the federal parliament and the legislative assemblies of Canada's provinces and territories.