Các thay đổi
==Các quốc gia sử dụng trước đây==
* The [[Union of South Africa]] between 1910 and 1961,
and the [[History of South Africa in the apartheid era| Republic of South Africa]] between 1961 and 1984. The 1983 constitution abolished the Westminster system in South Africa.
* [[Rhodesia]] between 1965 and 1979, and [[Zimbabwe]] between 1980 and 1987. The 1987 constitution abolished the Westminster system.
* [[Nigeria]] following the end of British colonial rule in 1960, which resulted in the appointment of a Governor-General and then a President, [[Nnamdi Azikiwe]]. The system ended after Nigeria became a republic in 1963.