CFR > Title 41 - Public Contracts and Property Management > SUBTITLE C—Federal Property Management Regulations System > CHAPTER 101—FEDERAL PROPERTY MANAGEMENT REGULATIONS (parts 101-1 to 101-49) > SUBCHAPTER E—SUPPLY AND PROCUREMENT (parts 101-22 to 101-33) > PART 101-29—FEDERAL PRODUCT DESCRIPTIONS > SUBPART 101-29.4—Mandatory Use of Federal Product Descriptions (§101-29.401 to §101-29.403-3) > 101-29.401—Federal product descriptions listed in the GSA Index of Federal Specifications, Standards and Commercial Item Descriptions.

101-29.401—Federal product descriptions listed in the GSA Index of Federal Specifications, Standards and Commercial Item Descriptions.

(a) Federal product descriptions shall be used by all Federal agencies in the procurement of supplies and services covered by such descriptions, except as provided in § 101-29.402 and § 101-29.403.
(b) The order of preference in selecting Federal product descriptions for acquisition shall be:
(1) Any Federal product description adopting voluntary standards.
(2) Commercial item descriptions.
(3) Federal specifications and standards.