34 Tex. Admin. Code § 31.12
A person who is receiving a service retirement annuity who retired after January 1, 2011, forfeits the annuity for any month in which the retiree is employed by a public educational institution covered by TRS, except in the cases set forth in §31.13 of this chapter (relating to Substitute Service), §31.14 of this chapter (relating to One-half Time Employment), and §31.15 of this chapter (relating to Full-time Employment after 12-Consecutive-Month Break in Service). Effective June 20, 2003, employment by a third party entity is considered employment by a Texas public educational institution unless the retiree does not perform duties or provide services on behalf of or for the benefit of the institution or the retiree was first employed by the third party entity before May 24, 2003.
Source Note:The provisions of this §31.12 adopted to be effective March 12, 2003, 28 TexReg 2109; amended to be effective October 30, 2003, 28 TexReg 9288; amended to be effective March 8, 2007, 32 TexReg 1089; amended to be effective September 1, 2011, 36 TexReg 5376.