Ohio Revised Code Title XXXIII. Education Libraries § 3307.87

(B) If a member participating in an STRS defined contribution plan is married at the time of the member's death, any benefits that are payable to the member shall be paid to the member's spouse, unless the spouse has consented under division (C) of this section to the designation of a different beneficiary or the spouse's consent is waived under that division.

(C) Consent is valid only if it is evidenced by a signed statement that is witnessed by a notary public. Each plan may waive the requirement of consent if the spouse is incapacitated or cannot be located or for any other reason specified by the plan or in rules adopted by the state teachers retirement board. A plan shall waive the requirement of consent if a plan of payment that provides for payment in a specified amount continuing after the member's death to a former spouse is required by a court order issued prior to the effective date of the member's retirement under section 3105.171 or 3105.65 of the Revised Code or laws of another state regarding division of marital property.

Consent or waiver is effective only with regard to the spouse who is the subject of the consent or waiver.