1 Tex. Admin. Code § 81.8
In addition to the lists required by the Texas Election Code, §18.063, to be delivered by the registrar to the secretary of state showing each new registration, cancelled registration, and change in registration information in the county since the delivery of the previous corresponding list, the registrar shall submit lists of such updated information on or after June 1, but before June 16 of each even-numbered year, and on or after December 1, but before December 16 of each even-numbered year. Each odd-numbered year such information shall be submitted on or after March 1 but before March 16, on or after June 1 but before June 16, on or after September 1 but before September 16, and on or after December 1 but before December 16.
Source Note:The provisions of this §81.8 adopted to be effective June 27, 1986, 11 TexReg 2740; amended to be effective April 20, 1987, 12 TexReg 1125.