A. The membership status of a disability retired member following termination of the disability retirement pension shall be governed by the membership provisions of the Public Employees Retirement Act. Upon reacquisition of membership, the credited service of the member at time of disability retirement shall be restored. Credited service shall not be granted for the period of disability retirement unless the retirement board has found the disability to have been the natural and proximate result of causes arising solely and exclusively out of and in the course of the disability retired member’s performance of duty with an affiliated public employer. In no case shall credited service be granted for disability retirement time incurred after the date the disability retired member meets an age and service requirement for normal retirement or after the date the disability retired member attains age sixty-five years.

B. A terminated disability retired member who does not reacquire membership shall have actual credited service at time of disability retirement restored and shall become a vested former member. The former disability retired member may retire upon meeting the requirements for normal retirement specified by the applicable coverage plan, except the service requirement for normal retirement at age sixty-five years or older shall be waived.