The proposed changes to the constitution were presented to the General Assembly on 30 June 1951. The Chamber of Deputies approved it by a vote of 85 to 14 on 10 October, whilst the Senate approved it by a vote of 26 to 4 on 26 October.^[1]

The amendments would:^[1]

• reintroduce the colegiado system of government, giving six seats on the National Council of Government to the largest party and three to the second largest party.
• provide for a bicameral General Assembly elected by proportional representation.
• retain the use of the lema system.
• allow petitions for constitutional amendments signed by 10% of registered voters, and allow the General Assembly to put forward a counter-proposal to the proposed amendments.

The colegiado system was reintroduced prior to the 1954 general elections.