Okla. Admin. Code § 310:667-35-2
(b) Services shall be provided by qualified professionals in accordance with a written plan of treatment. All services except rehabilitative medicine and nursing may be provided on a contractual basis as long as patients' needs are met. All rehabilitation facilities shall provide at a minimum, the following clinical services.
Added at 12 Ok Reg 1555, eff 4-12-95 (emergency)
Added at 12 Ok Reg 2429, eff 6-26-95
Amended at 20 Ok Reg 1664, eff 6-12-03