1. (a) A person receiving a disability retirement annuity may not exercise the exceptions described in §31.7 of this title (relating to Regular Employment Having No Effect on Annuity) and in §31.12 of this title (relating to Employment up to Six Months on as Much as Full Time).
2. (b) Any person receiving a disability retirement annuity may, without affecting payment of the annuity, be employed on a one-time only trial basis on as much as full time for a period of no more than three consecutive months in a school year if the work meets the requirements in subsection (c) of this section and the person complies with the requirements of subsection (d) of this section.

3. (c) The work must occur:

   1. (1) in a period, designated by the employee in advance, of three consecutive months of a school year; and
   2. (2) in a school year that begins after the retiree's effective date of retirement or no earlier than October 1 if the effective date of retirement is August 31.
4. (d) A person must elect in writing on a form prescribed by the Teacher Retirement System of Texas to take advantage of the exception described by this section no later than the end of the first month of employment under this section or 30 days after the date of employment, whichever is later.
5. (e) Working any portion of a month counts as working a full month for purposes of this section.

Source Note:The provisions of this §31.13 adopted to be effective January 24, 1992, 17 TexReg 254.