(1) Except as provided in subsection (2), a person may not utilize occupational therapy techniques involving sound or electrical physical agent modality devices unless the person:
(a) is licensed under this chapter; and
(b) limits application of sound and electrical physical agent modalities to the shoulder, arm, elbow, forearm, wrist, or hand to restore and enhance upper extremity function.
(2) A certified occupational therapy assistant who works under the direct supervision of a qualified occupational therapist may apply deep physical agent modalities to the shoulder, arm, elbow, forearm, wrist, and hand.