The Coastal Barrier Resources Act (CBRA) of 1982 established the John H. Chafee Coastal Barrier Resources System (CBRS), a defined set of coastal barrier units located along the Atlantic, Gulf of Mexico, Great Lakes, U.S. Virgin Islands, and Puerto Rico coasts. These areas are delineated on a set of official maps that are maintained by the Department of the Interior through the U.S. Fish and Wildlife Service (FWS). Most new Federal expenditures and financial assistance, including Federal flood insurance, are prohibited within the CBRS. CBRA does not prevent development, and it imposes no restrictions on development conducted with non-Federal funds. Congress enacted CBRA to minimize the loss of human life, wasteful Federal expenditures, and the damage to natural resources associated with coastal barriers. Because of the implications of CBRA on FEMA programs (such as the National Flood Insurance Program), CBRS boundaries are also shown for informational purposes on FEMA's Flood Insurance Rate Maps (FIRMs).