Louisiana Revised Statutes Tit. 11, § 2214.2. Persons becoming eligible for membership while employed and members of another public retirement system, plan, or fund

A. Notwithstanding any other provision of law to the contrary, any person employed in a position as defined in R.S. 11:2213(11) and who is a member of another public retirement system, plan, or fund, and who at a later date becomes eligible for membership in this system for the same employment, may elect to remain a member of the other system, plan, or fund in lieu of membership in this system by filing a notice in writing with the board of his current system, plan, or fund and the board of this system within one year after becoming eligible to be a member of this system. Such election shall be irrevocable.

B. Any person described in Subsection A of this Section who elects to become a member of this system shall be allowed to purchase any prior service credit, for which he does not already have credit, that would have met the current definition of employee at the time such service was rendered, in accordance with the provisions of R.S. 11:158.

C. Any person described in Subsection A of this Section, who through error participated in this system prior to July 1, 1999, shall be allowed to remain as a member and retain service credits accrued to July 1, 1999, and to continue participation until termination of employment.