Ohio Rev. Code Ann. § 4729.532
(A) No agent or employee of an animal shelter and no county dog warden or agent or employee of a county dog warden shall perform euthanasia by means of lethal injection on an animal by use of any substance other than a substance in a manufactured dosage form that the state veterinary medical licensing board, in consultation with the state board of pharmacy, approves by rule adopted in accordance with Chapter 119. of the Revised Code. The agent or employee of an animal shelter, county dog warden, or agent or employee of a county dog warden when using a lethal solution to perform euthanasia on an animal shall use the solution in accordance with the following methods:
(C) No agent or employee of an animal shelter and no county dog warden or agent or employee of a county dog warden, other than a registered veterinary technician as defined in section 4741.01 of the Revised Code, shall perform euthanasia by means of lethal injection on an animal or administer pre-euthanasia drugs that induce anesthesia, sedation, or unconsciousness unless the agent or employee or county dog warden has received certification after successfully completing a euthanasia technician certification course as described in this division. The curriculum for a euthanasia technician certification course shall be one that has been approved by the state veterinary medical licensing board, shall be at least sixteen hours in length, and shall include information in at least all of the following areas:
(D)