The Senate was also enlarged to bring the number to 30 members:

• 10 whites elected by 28 white members of the House of Assembly
• 10 blacks elected by 72 black members of the House of Assembly
• 10 traditional chiefs elected by Council of chiefs, representing the provinces of Mashonaland and Matebeleland. 

For the first time, there was provision for an  Electoral Supervision Commission charged with the duty of ensuring free and fair elections. The Zimbabwe-Rhodesia constitution provided for the formation of the Government of National Unity.  All male and female citizens of 18 years and over, black, white , coloured or Asian were eligible to be registered to vote. For the first time one man, one vote election in this country was held.

The 1979 Constitution brought a majority of blacks in both Houses of Parliament but did not bring real power, which was still vested in minority hands. The Zimbabwe-Rhodesia government was short lived in 1979.