Various other utility and life support systems such as air handlers, exhaust fans, stand-alone air conditioning systems, dietetic refrigeration, steam distribution, solar heat, domestic hot and cold water, electrical switch gear, emergency generators, oxygen, nitrous oxide, vacuum, air, etc. are also monitored and controlled by the Energy Management Computer Systems. The following will be communicated to applicants for VA employment in a testing designated position and will also be included in all VA vacancy announcements for such positions: All applicants tentatively selected for VA employment in a testing designated position are subject to urinalysis to screen for illegal drugs use prior to appointment.