The 1974 Yugoslav Constitution was the fourth and final constitution of the Socialist Federal Republic of Yugoslavia. It came into effect on 21 February 1974. With 406 original articles, the 1974 constitution was one of the longest constitutions in the world. It added elaborate language protecting the self-management system from state interference and expanding representation of republics and provinces in all electoral and policy forums. The Constitution called the restructured Federal Assembly the highest expression of the self-management system. Accordingly, it prescribed a complex electoral procedure for that body, beginning with the local labor and political organizations. Those bodies were to elect communelevel assemblies, which then would elect assemblies at province and republic lev