41 C.F.R. § 101-29.203 Federal specification.
Title 41 - Public Contracts and Property Management
A Federal specification is a specification, issued in the Federal series, that is mandatory for use by all Federal agencies. 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
§ 101-29.203 Federal specification.