62 (a) six are elected from each of the provinces into which Zimbabwe is divided, by a system of proportional representation conforming with subsection (2); (b) sixteen are chiefs, of whom two are elected by the provincial Councils of Chiefs from each of the provinces, other than the metropolitan provinces, into which Zimbabwe is divided; (c) the President and Vice-President of the national Council of Chiefs; (d) eight are Provincial Governors, one from each of the provinces, other than the metropolitan provinces, into which Zimbabwe is divided; and (e) two are elected in the manner prescribed in the Electoral Law to represent persons with disabilities. (2) Elections of Senators must be conducted in accordance with the Electoral Law, which must ensure that the Senators referred to in subsection (1)(a) are elected under a party-list system of proportional representation— (a) which is based on the votes cast for candidates representing political parties in each of the provinces in the general election for members of the National Assembly; and (b) in which male and female candidates are listed alternately, every list being headed by a female candidate. 6.6 Qualifications and disqualifications for election as Senator (1) A person is qualified for election as a Senator referred to in section 6.5(1)(a) if he or she— (a) is registered as a voter; and (b) is at least forty years of age; unless he or she is disqualified under subsection (4) or (5). (2) A person is qualified for election as a Senator Chief referred to in section 6.5(1)(b) if he or she— (a) holds the office of Chief; and (b) is registered as a voter; unless he or she is disqualified under subsection (4) or (5). (3) A person is qualified for election as a Senator referred to in section 6.5(1)(e) if he or she is a person with a disability as defined in the Electoral Law, unless he or she is disqualified under subsection (4) or (5). (4) A person is disqualified for election as a Senator if— (a) he or she is disqualified under the Fourth Schedule for registration as a voter; or (b) within five years before the election, he or she vacated a seat in the Senate or the National Assembly in terms of section 6.14(1)(i) through having been convicted of an offence. (5) A person is disqualified for election at a by-election in the Senate if he or she is already a member of Parliament.