Quebec premier argues province has power to amend constitution in letter to Trudeau by The Canadian Press Last Updated May 15, 2021 at 12:44 pm EDT MONTREAL — Quebec Premier François Legault has written a letter to Prime Minister Justin Trudeau promoting his proposed reform to the province’s language law, which includes a potential change to the Canadian constitution. The letter, published on Legault’s Facebook page Saturday, outlines some of the main changes to Quebec’s language law included in the reform bill. They include tougher sign laws and stronger language requirements for businesses, including those in federally-regulated industries, as well as for governments and schools.