(a) The facility owner or operator shall prevent unauthorized entry by persons or animals onto the facility.      
        (b) A facility shall have:        
          (1) a 24-hour surveillance system (e.g., television monitoring or surveillance by guards or facility personnel) which continuously monitors and controls entry onto the active portion of the facility; or          
            (2) an artificial or natural barrier (e.g., a fence in good repair or a fence combined with a cliff), which completely surrounds the active portion of the facility; and            
              (3) a means to control entry, at all times, through the gates or other entrances to the active portion of the facility (e.g., an attendant, television monitors, locked entrance, or controlled roadway access to the facility).              
                (c) A sign with the legend, "Caution--Unauthorized Personnel Keep Out" shall be posted at each entrance to the active portion of a facility, and at otherlocations, in sufficient numbers to be seen from any approach to the active portion. The legend shall be written in English and in any other language predominant in the area surrounding the facility, and shall be legible from a distance of at least 25 feet. Existing signs with a legend other than "Caution--Unauthorized Personnel Keep Out" may be used if the legend on the sign indicates that only authorized personnel are allowed to enter the active portion, and that entry onto the active portion can be dangerous.                
                  (d) The owner or operator of the facility shall submit details of the proposed security measures in the application for registration.                 
     Source Note:        The provisions of this §334.505 adopted to be effective December 27, 1996, 21 TexReg 12177.