Instead of each province electing eight Senators, by proportional representation, the new system required provincial representatives to be selected by a first past the post election in the Electoral College. The effect of this was to enable the majority group from each province (NP in all the provinces, except for Natal) to secure all the seats available. In addition Cape Province and Transvaal had their representation increased to 22 and 27 seats respectively. The number of nominated Senators from the Union of South Africa was doubled from eight to sixteen. The representation of South-West Africa and black voters was unchanged.