Ohio Rev. Code Ann. § 5126.25
(A) The director of developmental disabilities shall adopt rules under division (C) of this section establishing uniform standards and procedures for the certification and registration of persons, other than the persons described in division (I) of this section, who are seeking employment with or are employed by either of the following:
(C) The director shall adopt rules in accordance with Chapter 119. of the Revised Code as the director considers necessary to implement and administer this section, including rules establishing all of the following:
(E)
(I) The certification and registration requirements of this section and the rules adopted under it do not apply to either of the following: