La. R.S. 11:161

Notwithstanding any provision of law to the contrary, when a state employee who is in the classified service is granted an unpaid leave of absence for the purpose of allowing that employee to accept another position of state employment, that employee shall remain a member of the retirement system in which the employee was a member while serving in the classified service. Such election shall be irrevocable. The employer shall transmit both the employee and employer contributions to the appropriate retirement system on behalf of the state employee.