An annuitant who as an employee received the benefits of a state contribution under Section 1551.319(b) for coverage during any portion of the annuitant's last employment by a state agency is not eligible to receive more than the state contribution provided under Section 1551.319(b) unless the annuitant was designated by the annuitant's employer as a full-time employee during the three-consecutive-month period before retirement.
Tex. Ins. Code § 1551.3195