1. (a) Any person receiving a disability retirement annuity may, without affecting payment of the annuity, be employed for a period not to exceed 90 days during any school year by public educational institution covered by TRS on as much as one-half the full time load for the particular position according to the personnel policies of the employer. 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. Total substitute service under §31.33 of this chapter and half-time employment may not exceed 90 days during any school year. Effective September 1, 2003, substitute service under §31.33 of this chapter and half-time employment may be combined in the same calendar month only if the total number of days that the disability retiree works in those positions in that month do not exceed the number of days per month for work on a one-half time basis. This exception does not apply for the first month after the retiree's effective date of retirement (or the first two months if the person's retirement date has been set on May 31 under §29.14 of this title (relating to Eligibility for Retirement at the End of May) or under §29.21 of this title (relating to Effective Date for Disability Retirement)).
2. (b) "One-half time" employment measured in clock hours must never exceed one-half of the time required for the full time position in a calendar month or 92 clock hours, whichever is less, and may not exceed a total of 90 days in a school year. Determination of one-half time will be made on a calendar month basis as the full time load may vary from month to month. Actual course instruction in state-supported colleges (including junior colleges), universities, and public schools shall not exceed during any month one-half the normal load for full-time employment at the same teaching level.
3. (c) "One-half time" employment for bus drivers shall in no case exceed 12 days in any calendar month. Work by a bus driver for any part of a day shall count as full day for purposes of this section.

Source Note:The provisions of this §31.32 adopted to be effective March 12, 2003, 28 TexReg 2109; amended to be effective October 30, 2003, 28 TexReg 9289.