A referendum on a new constitution was held in South Africa on 2 November 1983 in which the white population was given the opportunity to approve or reject the Constitution of 1983. This constitution introduced the Tricameral Parliament, in which Coloured and Indian South Africans would be represented in separate parliamentary chambers, while black Africans, who were the majority of South Africa's population, would remain unrepresented. The referendum passed with 66.3% of voters voting "Yes"; consequently the new constitution came into force on 3 September 1984.

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