The 1963 Yugoslav Constitution was the second communist state constitution of the Socialist Federal Republic of Yugoslavia. It came into effect on April 7, 1963. The constitution was the result of beliefs of the governing structures that Yugoslav self-management relations have been sufficiently overcome in the society that it deserved a new and final constitutional definition and enthroning.
The parliamentary Federal Assembly (Skupština) was divided into one general chamber, the Federal Chamber, and four chambers given specific bureaucratic responsibilities. The constitution directed that individual republics be represented only in the Chamber of Nationalities, a part of the Federal Chamberthat in 1967 became a separate chamber of the Assembly in its own right. With this, the Federal Assembly became the only pentacameral, later hexacameral, legislature on the planet.