The North American Drama Therapy Association (NADTA) was incorporated in 1979 to establish and uphold rigorous standards of professional competence and ethics for drama therapists. The organization maintains requirements that must be met to qualify as a registered drama therapist (RDT). NADTA promotes drama therapy through information and advocacy. Drama Therapy is an active, experiential approach to facilitating change. Through storytelling, projective play, purposeful improvisation, and performance, participants are invited to rehearse desired behaviors, practice being in relationship, expand and find flexibility between life roles, and perform the change they wish to be and see in the world.