19-20-304. Membership termination. The active or inactive membership in the retirement system of any person terminates when the person:
(1) retires on a retirement allowance of the retirement system;
(2) dies;
(3) withdraws the person's accumulated contributions to the retirement system under the provisions of 19-20-603; or
(4) ceases to be employed in a capacity that allows membership, has less than 5 years of creditable service in the retirement system, and cannot qualify under the provisions of 19-20-303(2).