Ohio Rev. Code Ann. § 2133.02
(A)
(3)
(a) If a declarant who has authorized the withholding or withdrawal of life-sustaining treatment intends that the declarant's attending physician withhold or withdraw nutrition or hydration when the declarant is in a permanently unconscious state and when the nutrition and hydration will not or no longer will serve to provide comfort to the declarant or alleviate the declarant's pain, then the declarant shall authorize the declarant's attending physician to withhold or withdraw nutrition or hydration when the declarant is in the permanently unconscious state by doing both of the following in the declaration:
(B)
(D)