(a) This subpart prescribes policies and procedures for identification of commercial and government entities. The Commercial and Government Entity (CAGE) code system may be used, among other things, to--
(1) Exchange data with another contracting activity, including contract administration activities and contract payment activities;
(2) Exchange data with another system that requires the unique identification of a contractor entity; or
(3) Identify when offerors are owned or controlled by another entity.
(b) For information on the Data Universal Numbering System (DUNS) number, which is a different identification number, see 4.605 and the provisions at 52.204-6 and 52.204-7.