Sec. 853.101.  CREDITABLE PRIOR SERVICE.  Prior service creditable in the retirement system is:
(1)  service performed as an employee of a participating department of a municipality before the date the department's participation in the retirement system became effective;
(2)  for a person who becomes a member of the retirement system under Section 852.105, service performed as an employee of a participating department during a time the person was ineligible for membership because of age;  or
(3)  for a person entitled to prior service credit under Section 853.102(a)(3), service for which current service credit has not been granted that was performed as an employee of a participating department during a time the person was ineligible to participate because of age.
Acts 1981, 67th Leg., p. 1876, ch. 453, Sec. 1, eff. Sept. 1, 1981.  Amended by Acts 1981, 67th Leg., 1st C.S., p. 220, ch. 18, Sec. 73, eff. Jan. 1, 1982.  Renumbered from Vernon's Ann.Civ.St. Title 110B, Sec. 63.101 and amended by Acts 1989, 71st Leg., ch. 179, Sec. 1, eff. Sept. 1, 1989.