Section 70559 - Physical Therapy Service Staff(a) A physical therapist shall have overall responsibility for the physical therapy service.(b) There shall be sufficient staff to meet the needs of the patients and scope of the services offered. The staff shall consist of physical therapists and may additionally consist of physical therapist assistants, physical therapy aides and other supportive personnel.(c) The physical therapist shall supervise treatment rendered by aides and assistants. When physical therapy aides are providing treatment, a physical therapist shall provide direct supervision of the treatment rendered.Cal. Code Regs. Tit. 22, § 70559