The Commercial and Government Entity (CAGE) codes are five-digit numbers used as a contractor identifier for firms doing business with the Department of Defense. They are used as a method of identifying a given facility at a specific location.
The code's applications include facility clearances, pre-award surveys, automated bidders lists, pay processes and sources of supply. The unique number helps streamline communications and procurement, eliminating the need for new registration forms at every office. The code is five characters long, with the first and last being numerals. The middle three figures can be numerals or letters. The Department of Transportation and NASA are among the other agencies that use CAGE codes.