Ohio Rev. Code § 2131.10
A natural person, adult or minor, referred to in sections 2131.10 and 2131.11 of the Revised Code as the owner, may enter into a written contract with any bank, building and loan or savings and loan association, credit union, or society for savings, authorized to receive money on an investment share certificate, share account, deposit, or stock deposit, and transacting business in this state, whereby the proceeds of the owner's investment share certificate, share account, deposit, or stock deposit may be made payable on the death of the owner to another person or to any entity or organization, referred to in such sections as the beneficiary, notwithstanding any provisions to the contrary in Chapter 2107. of the Revised Code. In creating such accounts, "payable on death" or "payable on the death of" may be abbreviated to "P.O.D."
Every contract of an investment share certificate, share account, deposit, or stock deposit authorized by this section shall be deemed to contain a right on the part of the owner during the owner's lifetime both to withdraw the proceeds of such investment share certificate, share account, deposit, or stock deposit, in whole or in part, as though no beneficiary has been named, and to designate a change in beneficiary. The interest of the beneficiary shall be deemed not to vest until the death of the owner.
No change in the designation of the beneficiary shall be valid unless executed in the form and manner prescribed by the bank, building and loan or savings and loan association, credit union, or society for savings.
R.C. § 2131.10