For review purposes under these standards, the service area for an ICF/MR shall be the Mentally Retarded School Service Region, as designated by the State Department of Human Services, in which it is located or proposed for location. In the event an application for Certificate of Need is considered for a specialized ICF/MR facility for which only one or two facilities may be needed in the State, then the Department may treat the entire State as the service area.
Okla. Admin. Code § 310:625-1-2