Retirees with an effective date of retirement on or after January 31, 2002, and who retire under Chapter 803, Proportionate Retirement Program, Government Code, and whose combined service credit under this program establishes eligibility for retirement under Government Code, Chapter 824, §824.202(a), shall receive a normal-age retirement annuity based only on the actual TRS service credit.
34 Tex. Admin. Code § 29.80