CAH Frequently Asked Questions by the Rural Assistance Center (RAC)
Certification and Compliance by the Centers for Medicare & Medicaid Services (CMS)
National List of Critical Access Hospitals
National Map of Critical Access Hospitals 
The following rural fact sheets have been revised as of April 2008 and can be downloaded:
Critical Access Hospital Fact Sheet - The fact sheet provides information about eligible Critical Access Hospital (CAH) providers; CAH designation; CAH payments; reasonable cost payment principles that do not apply to CAHs; election of Standard Method or Optional (Elective) Payment Method; Medicare Rural Pass-Through funding for certain anesthesia services; Health Professional Shortage Area Incentive payments; Physician Scarcity Area Bonus payments; Medicare Prescription Drug, Improvement, and Modernization Act of 2003; and grants to states under the Medicare Rural Hospital Flexibility Program.
Sole Community Hospital Fact Sheet - The fact sheet provides information about Sole Community Hospital classification and payments.
Federally Qualified Health Center Fact Sheet - The fact sheet provides information about Federally Qualified Health Center (FQHC) designation; covered FQHC services; FQHC preventive primary services that are not covered; FQHC payments; and the Medicare Prescription Drug, Improvement, and Modernization Act of 2003.
Rural Health Clinic fact sheet from 2007 (not yet updated) - The fact sheet providers information about Rural Health Clinic (RHC) designation; covered RHC services; RHC payments; and the Medicare Prescription Drug, Improvement, and Modernization Act of 2003.
Critical Access Hospital Provider Center
Federally Qualified Health Centers Provider Center
Code of Virginia Governing Critical Access Hospitals: § 32.1-122.07 | § 32.1-125.3