Ohio Rev. Code Ann. § 3721.04
(A) The director of health shall adopt and publish rules governing the operation of homes, which shall have uniform application throughout the state, and shall prescribe standards for homes with respect to, but not limited to, the following matters:
(C) The following apply to the director when adopting rules under division (A)(1) of this section regarding the equipping of the buildings in which homes are housed:
(D) The following apply to the director when adopting rules under division (A)(2) of this section regarding the number and qualifications of personnel in homes:
(1) When adopting rules applicable to residential care facilities, the director shall take into consideration the effect that the following may have on the number of personnel needed:
(2) When adopting rules applicable to nursing homes, the director shall require each nursing home to do both of the following:
(b) Have the following individuals provide a minimum daily average of two and one-half hours of direct care per resident:
(E) The following apply to the director when adopting rules under division (A)(2) of this section regarding the number and qualifications of personnel in nursing homes or rules under division (A)(5) of this section regarding social services to be provided by nursing homes: