This article shall not apply to students in a California veterinary technology program who perform the job tasks for registered veterinary technicians as part of their educational experience, including students both on and off campus acting under the direct supervision of a California licensed veterinarian, except that those students shall only administer controlled substances and perform drug compounding under the immediate supervision of a registered veterinary technician or California licensed veterinarian. For purposes of this section, “immediate supervision” means supervision by a person who is within audible and visual range of both the animal patient and the person being supervised.