Rank-order rules

(a) A group may submit to the Electoral Supervisory Commission a list of reserve candidates for the election of Municipal City Councillors, Municipal Town Councillors or Village Councillors, for the purpose of filling ... 

(iv) indicate the order of precedence of each of the candidates appearing on the list, provided that not more than 2 consecutive candidates on the list shall be of the same sex. (Article 18.5)