Any person who became a member before July 1, 2007, who withdraws from service prior to age 60 with four (4) or more years of contributing membership service but less than twenty-five (25) years of creditable service and who does not receive a refund of his or her contributions, shall, upon the attainment of age 60, be eligible to apply for a retirement allowance in accordance with the formula provided in Miss. Code Ann. § 25-11-111 (1972, as amended).
27 Miss. Code. R. 210-28-101