Constitution of the Republic of South Africa, 1996 (Act No. 108 of 1996)

Chapter 6 : Provinces

(1)	A provincial legislature consists of women and men elected as members in terms of an electoral system that—

(a)	is prescribed by national legislation;

(b)	is based on that province's segment of the national common voters roll;

(c)	provides for a minimum voting age of 18 years; and

(d)	results, in general, in proportional representation.

(2)	A provincial legislature consists of between 30 and 80 members. The number of members, which may differ among the provinces, must be determined in terms of a formula prescribed by national legislation.