24 February 1992
The African National Congress (ANC) announced its constitutional proposals during the Convention for Democratic South Africa (CODESA) talks. The ANC's proposals envisioned a two-phase transition to a post-apartheid democracy and were supported by the South African Communist Party (SACP). During Phase One an all-party interim government council would be appointed by CODESA by the third quarter of 1992. The second phase would begin with the election of the constituent assembly, substituting the current tricameral parliament from which Blacks were excluded.
References

O'Malley, P., '1992', from O'Malley - The Heart of Hope, [online], Available at www.nelsonmandela.org [Accessed: 30 January 2014]|Keesing's Record of World Events, News Digest for February 1992, p. 38751