This year, Canada's Supreme Court ruled as following:
The Supreme Court of Canada has ruled unanimously that provinces and territories have the constitutional right to restrict the importation of goods across provincial and territorial borders — as long as the primary aim of the restriction is not to impede trade.
Thursday's ruling will dash the hopes of many Canadians who were hoping to have easier access to cheaper and sought-after products in neighbouring provinces, particularly alcohol and tobacco.
To me this seems to be a bizarre ruling, as it essentially means that Canadian provinces are integrated economically even less than the individual countries of the European Union, since no such restrictions are possible within the EU.
Are there any other countries in the world where a private citizen may not freely move goods between provinces?