37 Tex. Admin. Code § 261.302
The facility need not be designed and maintained as a special security unit. It does not require a security perimeter. When built in conjunction with other jail or lockup functions, the integrity of the security perimeter of the higher security facility shall not be compromised.
Source Note:The provisions of this §261.302 adopted to be effective December 19, 1994, 19 TexReg 9526.