Tex. Gov't Code § 845.404
(a) Before the 16th day of each month, each participating subdivision shall pay or cause to be paid to the retirement system at the system's office:
(b) Unless otherwise provided for and paid by a subdivision, a subdivision shall pay its contributions to the retirement system from:
Acts 1981, 67th Leg., p. 1876, ch. 453, Sec. 1, eff. Sept. 1, 1981.
Amended by Acts 1985, 69th Leg., ch. 491, Sec. 30, eff. June 12, 1985. Renumbered from Vernon's Ann.Civ.St. Title 110B, Sec. 55.404 and amended by Acts 1989, 71st Leg., ch. 179, Sec. 1, eff. Sept. 1, 1989.
Amended by Acts 1999, 76th Leg., ch. 427, Sec. 58, eff. Dec. 31, 1999.