Common Access Card
SMARTCARD USED PRIMARILY BY THE US DEPARTMENT OF DEFENSE AND OTHER US GOVERNMENT AGENCIES
Common Access Cards; Cac card
The Common Access Card, also commonly referred to as the CAC is a smart card about the size of a credit card. It is the standard identification for Active Duty United States Defense personnel, to include the Selected Reserve and National Guard, United States Department of Defense (DoD) civilian employees, United States Coast Guard (USCG) civilian employees and eligible DoD and USCG contractor personnel.