(a) A person licensed under this chapter shall only engage in the practice of applied behavior analysis upon, and within the scope of, a referral from a licensed health professional or school official duly authorized to make such a referral.
(b) The practice of applied behavior analysis shall not include psychological testing, neuropsychology, diagnosis of mental health or developmental conditions, psychotherapy, cognitive therapy, sex therapy, psychoanalysis, psychopharmacological recommendations, hypnotherapy, or academic teaching by college or university faculty.