41 C.F.R. § 101-29.208 Commercial item description (CID).
Title 41 - Public Contracts and Property Management
A commercial item description is an indexed, simplified product description that describes by function or performance characteristics of available, acceptable commercial products that will satisfy the Government's needs. These documents are issued or controlled by the General Services Administration and are listed in the GSA “Index of Federal Specifications, Standards and Commercial Item Descriptions.”
Title 41: Public Contracts and Property Management
PART 101–29—FEDERAL PRODUCT DESCRIPTIONS
Subpart 101–29.2—Definitions
§ 101-29.208 Commercial item description (CID).