There are currently four Biosafety Level 4 laboratories in the United States. These are: the Centers for Disease Control and Prevention (CDC) in Atlanta; the United States Army Research Institute on Infectious Diseases (USAMRIID) in Frederick, Maryland; the Southwest Institute for Biomedical Research in San Antonio; and the University of Georgia in Athens, which houses a smaller, shoebox facility. The Bush Administration recently announced the construction of at least three new Biosafety Level 4 laboratories at Boston University Medical Center; the University of Texas Medical Branch in Galveston; and the Rocky Mountain Laboratories in Hamilton, Montana as well as the expansion of Biosafety Level 4 capacity at the CDC and USAMRIID. USAMRIID is the only Level 4 laboratory currently under military protection.