1. (a) New facilities, new additions, and major renovations to existing facilities shall be equipped with an emergency back-up electrical generator designed to operate both manually and automatically upon interruption of the primary electrical power source. The system shall be capable of operating uninterrupted for a minimum period of one- and one-half hours without refueling. Back-up electrical power shall be provided for necessary equipment and life safety systems including, but not limited to:

   1. (1) emergency illumination systems;
   2. (2) exit signs;
   3. (3) smoke management systems;
   4. (4) fire detection and alarm systems;
   5. (5) audible communication systems;
   6. (6) security/control systems;
   7. (7) normal ventilation systems required for smoke detection.
2. (b) Existing facilities shall provide emergency illumination, and this may be accomplished by utilizing a battery back-up system capable of continuous operation for one and one-half hours.

Source Note:The provisions of this §263.50 adopted to be effective December 19, 1994, 19 TexReg 9526; amended to be effective September 14, 2025, 50 TexReg 5941.