For purposes of this chapter:

(1) “Commissioner” means the Commissioner of Public Health;

(2) “Department” means the Department of Public Health;

(3) “Marital and family therapy” means the evaluation, assessment, diagnosis, counseling, management and treatment of emotional disorders, whether cognitive, affective or behavioral, within the context of marriage and family systems, through the professional application of individual psychotherapeutic and family-systems theories and techniques in the delivery of services to individuals, couples and families;

(4) “Licensed marital and family therapy associate” means a person who has been licensed by the department as a marital and family therapy associate pursuant to this chapter and whose license permits the person to engage in the practice of marital and family therapy under the clinical supervision of a licensed marital and family therapist; and

(5) “Licensed marital and family therapist” means a person who has been licensed by the department as a marital and family therapist pursuant to this chapter.