Ohio Rev. Code § 4760.08
An anesthesiologist assistant shall practice only under the direct supervision and in the immediate presence of a physician who is actively and directly engaged in the clinical practice of medicine as an anesthesiologist. An anesthesiologist assistant shall not practice in any location other than a hospital or ambulatory surgical facility. At all times when an anesthesiologist assistant is providing direct patient care, the anesthesiologist assistant shall display in an appropriate manner the title "anesthesiologist assistant" as a means of identifying the individual's authority to practice under this chapter.
Each anesthesiologist who agrees to act as the supervising anesthesiologist of an anesthesiologist assistant shall adopt a written practice protocol that is consistent with section 4760.09 of the Revised Code and delineates the services that the anesthesiologist assistant is authorized to provide and the manner in which the anesthesiologist will supervise the anesthesiologist assistant. The anesthesiologist shall base the provisions of the protocol on consideration of relevant quality assurance standards, including regular review by the anesthesiologist of the medical records of the patients of the anesthesiologist assistant.
The supervising anesthesiologist shall supervise the anesthesiologist assistant in accordance with the terms of the protocol under which the assistant practices and the rules for supervision of anesthesiologist assistants adopted by the state medical board under this chapter and Chapter 4731. of the Revised Code. The board's rules shall include requirements for enhanced supervision of an anesthesiologist assistant during the first four years of practice.
R.C. §4760.08