CAGE codes help the multiple branches of government identify a specific company location, and any business looking to conduct business with the U.S. government is required to obtain one. Obtaining a CAGE code is free and straightforward, requiring companies to fill out a form and submit it to the government agency they want to do business with. When some vital piece of information about a business changes--such as its scope, telephone number or location--the company needs to update its CAGE code listing as soon as possible.

Download form DD 2051 from the Department of Defense's Defense Technical Information Center website (see Resources).

Fill out the form completely, using the new information for your company. Include your existing CAGE code in section 5c of the form, and the signatures of both a company representative and a contracting officer from the DoD's Central Contractor Registration arm. Companies with an existing CAGE code already have a CCR contract officer contact.

Submit the updated form with the new information to the Defense Logistics Information Service at:

Defense Logistics Information Service DLIS-SBB Federal Center 74 Washington Ave., North Battle Creek, MI 49017-3084

Contact the Defense Logistics Information Service for more information if necessary. Call toll-free using 1-888-352-9333, locally using 1-616-961-4725, or from within the Department of Defense's "Defense Switched Network" using 932-4725. Fax the agency using 1-616-961-4388, extension 4485.