A hospital located in an urban area (Metropolitan Statistical Areas (MSA) County), can be considered rural for the purposes of a designation as a critical access hospital pursuant to 42 U.S.C. §1395i-4(c)(2) if it meets the following criteria:
(1) Is enrolled as both a Medicaid and Medicare provider and accepts assignment for all Medicaid and Medicare patients;
(2) Provides emergency health care services to indigent patients;
(3) Maintains 24-hour emergency services; and
(4) Is located in a county that has a rural population of fifty percent or greater as determined by the most recent United States decennial census.