Between 2000 and 2003, Quebec's provincial government merged many small municipalities into larger "super-cities". This
municipal reorganisation proved to be controversial in several municipalities. A new liberal government elected in 2003 held a referendum to allow voters to vote for de-amalgamation. Several municipalities voted in a
2004 referendum to reverse their amalgamation. However, the new municipalities did not fully regain their old autonomy. Urban agglomerations were introduced over each formerly-merged region, grouping together a number of municipalities that were abolished as independent entities on 1 January 2002 but
reconstituted on 1 January 2006. These municipalities were required to share major services, such as police, transit, and water, under an agglomeration council, in most cases controlled by the central municipality. ==Agglomeration and municipal powers==