Section 73473 - Occupational Therapy Service Unit-Staff(a) The occupational therapy service unit shall be under the direction of an occupational therapist.(b) An occupational therapy assistant shall work only under direct supervision of an occupational therapist.(c) The occupational therapist and occupational therapy assistant shall work the hours necessary to accomplish those tasks listed in Section 73469.Cal. Code Regs. Tit. 22, § 73473