Louisiana Revised Statutes Tit. 18, § 521. Qualifications of voters

B. Candidates for party office.(1) In a primary or general election at which members of a political party committee are voted on, only qualified voters who are registered as being affiliated with the same political party as the candidates for membership on a political party committee may vote on such candidates. The secretary of state shall adjust the voting machines so that the candidates for membership on a political party committee may only be voted on by voters who are registered as being affiliated with the same political party as the candidates.

(2) The qualification of a voter to vote on a candidate for membership on a political party committee shall be subject to the following provisions:

C. Change of residence.(1) A registrant who changes his residence from one precinct to another in the same parish shall retain the right to vote in the precinct from which he has removed, as to all issues upon which he was entitled to vote prior to his change of residence, until he changes his registration as provided in R.S. 18:110(A). Upon changing registration, such registrant shall have the right to vote in the precinct to which he has moved in accordance with law.

(2) A registrant who changes his residence from one parish to another shall retain the right to vote in the parish from which he has removed, as to all issues upon which he was entitled to vote prior to his change of residence, until he registers in the parish to which he has moved or until three months after he has moved, whichever is sooner. Upon registering in the parish to which he has moved, such registrant shall have the right to vote in such parish in accordance with law. After the three-month period, he shall no longer have the right to vote in the parish from which he has moved.