Louisiana Revised Statutes Tit. 18, § 57. Reduction of compensation while holding office or employment prohibited

A. The compensation of any registrar, chief deputy, or other unclassified employee which is payable in accordance with the provisions of R.S. 18:55 and 59 shall not be reduced while he holds his office or position, or as a result of promotion.

B. Subsequent to the 1990 federal decennial census, if the most recent population figures referred to in R.S. 18:55(A) and 59(B) and (C) decrease from the prior population figures so as to change the population range of the parish, the registrar of voters, chief deputy, and confidential assistant shall be compensated at the population range for such prior parish population while each holds his office. If the most recent population figures referred to in R.S. 18:55(A) and 59(B) and (C) increase over the prior parish population so as to change the population range of the parish, the registrar of voters, chief deputy, and confidential assistant shall receive an increase in compensation to the nearest step in the new population range or a minimum increase of five hundred dollars for the registrar, three hundred dollars for the chief deputy, and two hundred dollars for the confidential assistant.