Okla. Admin. Code § 310:667-40-1
An emergency hospital (EH) is a hospital that provides emergency treatment and stabilization services on a twenty four (24) hour basis that has the ability to admit and treat patients for short periods of time. The EH shall be the sole provider of hospital services in the community and is to allow the provision of emergency and stabilizing care in a community that is unable to support a general medical surgical or critical access hospital. The EH shall only provide emergency medical services and limited inpatient stabilization or observational care. Non-emergent surgical, scheduled obstetrical deliveries, and invasive diagnostic services requiring anesthesia or sedation shall not be provided. The EH shall be limited to no more that ten (10) inpatient stabilization and observational beds.
Okla. Admin. Code § 310:667-40-1