[Code of Federal Regulations] [Title 41, Volume 2] [Revised as of July 1, 2005] From the U.S. Government Printing Office via GPO Access [CITE: 41CFR101-29.401] [Page 136] TITLE 41--PUBLIC CONTRACTS AND PROPERTY MANAGEMENT CHAPTER 101--FEDERAL PROPERTY MANAGEMENT REGULATIONS PART 101-29_FEDERAL PRODUCT DESCRIPTIONS--Table of Contents Subpart 101-29.4_Mandatory Use of Federal Product Descriptions Sec. 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 Sec. 101-29.402 and Sec. 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. [[Page 137]]