The final was then played at the home venue of the higher-placed team.
The bottom team on the log qualified for the relegation play-offs.
The promotion/relegation play-off games between Eastern Province and Western Transvaal were not played.
At the end of September 1989, the South African Rugby Board announced that South West Africa would not play in the 1990 Currie Cup competition and that Western Transvaal would be automatically promoted.
[61] Despite suggestions that South West Africa would be allowed back into the Currie Cup,[62] South West Africa later voluntarily withdrew, due to uncertainty arising from Namibia gaining independence.