Substitution of candidates

1 - Candidates may only be substituted in the following cases and at least fifteen days before the elections:
a) Elimination due to a definitive judgement in an appeal on the grounds of ineligibility;
b) Death or illness that causes physical or psychological impossibility;
c) The candidate withdraws.
2 - Without prejudice to the provisions of Article 15, substitution is optional, and substitutes shall be placed on the list after the last of the alternates.