Ohio Rev. Code § 2108.15
Subject to division (I) of section 2108.11 and sections 2108.26 to 2108.272 of the Revised Code, the rights of the person to which a part passes under section 2108.11 of the Revised Code shall be superior to the rights of all others with respect to the part. The person may accept or reject an anatomical gift in whole or in part.
Subject to the terms of the document of gift and sections 2108.01 to 2108.29 of the Revised Code, a person that accepts an anatomical gift of an entire body may allow embalming, burial, or cremation, and use of remains in a funeral service. If the gift is of a part, the person to whom the part passes under section 2108.11 of the Revised Code, upon the death of the donor and before embalming, burial, or cremation, shall cause the part to be removed without unnecessary mutilation. After removal of the part, custody of the remainder of the decedent's body passes to the persons to whom the right of disposition for the body has been assigned pursuant to section 2108.70 of the Revised Code or who have the right of disposition for the body as described in section 2108.81 of the Revised Code.
R.C. §2108.15