Ohio Rev. Code Ann. § 5119.341
(B) Any person may operate a residential facility providing accommodations and personal care services for six to sixteen persons and licensed as a residential facility that meets the criteria specified in division (B)(1)(b) of section 5119.34 of the Revised Code as a permitted use in any multiple-family residential district or zone of any political subdivision, except that a political subdivision that has enacted a zoning ordinance or resolution establishing planned-unit developments as defined in section 519.021 of the Revised Code may exclude such facilities from such districts, and a political subdivision that has enacted a zoning ordinance or resolution may regulate such facilities in multiple-family residential districts or zones as a conditionally permitted use or special exception, in either case, under reasonable and specific standards and conditions set out in the zoning ordinance or resolution to:
(D)