Tex. Government Code § 843.001: TYPES OF CREDITABLE SERVICE.

The types of service creditable as credited service in the retirement system are prior service, current service, and optional service. A member may not be credited in this system with more than one month of credited service for a specific calendar month, regardless of the number of employers of the member, the positions held, or the types of service.

Acts 1981, 67th Leg., p. 1876, ch. 453, Sec. 1, eff. Sept. 1, 1981. Renumbered from Vernon's Ann.Civ.St. Title 110B, Sec. 53.001 by Acts 1989, 71st Leg., ch. 179, Sec. 1, eff. Sept. 1, 1989.

Amended by:

Acts 2007, 80th Leg., R.S., Ch. 873 (H.B. 1587), Sec. 15, eff. January 1, 2008.

Acts 2009, 81st Leg., R.S., Ch. 300 (H.B. 407), Sec. 7, eff. January 1, 2010.