"During an emergency involving multiple jurisdictions, having a trusted means to rapidly identify law enforcement and other responders is essential. An evolving federal credentialing program is providing that capability, along with other uses. The technology used in the credentials, known as First Responder Authentication Credentials (FRACs), provides trusted and electronically validated identification, interoperable across federal, state and local jurisdictions. Identity authentication checks are made easily at an emergency scene, where a handheld reader device or a laptop in a law enforcement cruiser can verify the individual's identity. The U.S. Department of Homeland Security (DHS) and the Federal Emergency Management Agency (FEMA) have been working with state agencies for several years in a series of pilot demonstrations to test various emergency scenarios using the credentials. The goal is to encourage adoption and operational use of high assurance authentication credentials nationwide."
United States Dept. of Justice: http://www.justice.gov/
National Law Enforcement & Corrections Technology Center, TechBeat (Winter 2010)