Tex. Gov't Code § 659.022
(a) If an employee of a state agency as defined by Section 658.001 who wishes to use accrued compensatory time that is subject to lapsing submits a written request for permission to use the accrued compensatory time to the employing state agency not later than the 90th day before the date on which the accrued compensatory time will lapse, the employing state agency shall:
Added by Acts 1999, 76th Leg., ch. 279, Sec. 12, eff. Sept. 1, 1999.