P.R. Laws tit. 16, § 4147
The persons entitled to vote in a special election shall be those who, at the closing of the General Voter Registry for said election, are affiliated to the political party where the vacancy arose and live within the geographic delimitation where said special election is to be held. The geographic delimitation within which the special election is to be held shall be the same for which the predecessor who held the vacant elective public office was elected.
Party affiliation shall be required to vote in case of a special election in which a political party has nominated more than one candidate for an elective public office left vacant by an official elected for such political party.
History —June 1, 2011, No. 78, § 9.007; Nov. 21, 2011, No. 230, § 22.