34 Tex. Admin. Code § 29.24
Members who are notified of their approval for disability benefits shall have 30 days from the date of the letter notifying them of their approval in which to purchase credit for military, out-of-state, withdrawn, waiver, joint service, or any other applicable special service credit.
Source Note:The provisions of this §29.24 adopted to be effective January 1, 1976; amended to be effective September 1, 1992, 17 TexReg 5120.