48 CFR · Federal Acquisition Regulation and Defense supplement

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The codified text (eCFR, as of 2026-10-02). Under the Revolutionary FAR Overhaul ↗, agencies follow class deviations with new text for many parts while the formal rules go through the Federal Register: check the solicitation and your contract's clauses, which rule.

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17 sections with “express written authority”

  • FAR 52.219-9 Small Business Subcontracting Plan.
    … (d) The Offeror's subcontracting plan shall include the following: (1) Separate goals, expressed in terms of total dollars subcontracted, and as a percentage of total planned subcontracting dollars, for the use of small business, veteran…
  • DFARS 252.246-7007 Contractor Counterfeit Electronic Part Detection and Avoidance System.
    …ufacturer means an organization that fabricates a part under a contract with, or with the express written authority of, the original component manufacturer based on the original component manufacturer's designs, formulas, and/or specificati…
  • FAR 2.101 Definitions.
    …quirements under a Government solicitation; (3) A product that would satisfy a criterion expressed in paragraph (1) or (2) of this definition, except for— (i) Modifications of a type customarily available in the commercial marketplace; or…
  • DFARS 202.101 Definitions.
    …ans an organization that fabricates an electronic part under a contract with, or with the express written authority of, the original component manufacturer based on the original component manufacturer's designs, formulas, and/or specificati…
  • DFARS 252.246-7008 Sources of Electronic Parts.
    …ufacturer means an organization that fabricates a part under a contract with, or with the express written authority of, the original component manufacturer based on the original component manufacturer's designs, formulas, and/or specificati…
  • FAR 6.302-5 Authorized or required by statute.
    … 3304(a)(5). (2) Full and open competition need not be provided for when— (i) A statute expressly authorizes or requires that the acquisition be made through another agency or from a specified source; or (ii) The agency's need is for a b…
  • FAR 46.101 Definitions.
    … to be an authentic, unmodified item from the original manufacturer, or a source with the express written authority of the original manufacturer or current design activity, including an authorized aftermarket manufacturer. Unlawful or unaut…
  • FAR 52.246-26 Reporting Nonconforming Items.
    … to be an authentic, unmodified item from the original manufacturer, or a source with the express written authority of the original manufacturer or current design activity, including an authorized aftermarket manufacturer. Unlawful or unaut…
  • DFARS 246.870-1 Definition.
    …, distributor, or an aftermarket manufacturer with a contractual arrangement with, or the express written authority of, the original manufacturer or current design activity to buy, stock, repackage, sell, or distribute the part.
  • FAR 50.103-2 Types of contract adjustment.
    …ay make such action appropriate: (i) A mistake or ambiguity consisting of the failure to express, or express clearly, in a written contract, the agreement as both parties understood it. (ii) A contractor's mistake so obvious that it was o…
  • FAR 5.202 Exceptions.
    …hat the acquisition shall be from specified sources; (4) The proposed contract action is expressly authorized or required by a statute to be made through another Government agency, including acquisitions from the Small Business Administrat…
  • FAR 16.505 Ordering.
    …imum guarantee. (E) For orders exceeding the simplified acquisition threshold, a statute expressly authorizes or requires that the purchase be made from a specified source. (F) In accordance with section 1331 of Public Law 111-240 (15 U.S…
  • FAR 32.702 Policy.
    …tten assurance from responsible fiscal authority that adequate funds are available or (b) expressly condition the contract upon availability of funds in accordance with 32.703-2.
  • FAR 42.1204 Applicability of novation agreements.
    … term Contractor, as used in the contracts, shall refer to the Transferee. (5) Except as expressly provided in this Agreement, nothing in it shall be construed as a waiver of any rights of the Government against the Transferor. (6) All pa…
  • FAR 52.212-3 Offeror Representations and Certifications—Commercial Products and Commercial Services.
    …ation from the Office of Foreign Assets Control in the Department of the Treasury, or are expressly exempted under Federal law from the requirement to be conducted under such authorization; (3) Consist of providing goods or services to mar…
  • FAR 52.215-1 Instructions to Offerors—Competitive Acquisition.
    …wed to revise its proposal. In writing, writing, or written means any worded or numbered expression that can be read, reproduced, and later communicated, and includes electronically transmitted and stored information. Proposal modificatio…
  • DFARS 252.229-7004 Status of contractors as a direct contractor (Spain).
    …directly or indirectly from this process shall not excuse untimely performance (except as expressly allowed in other provisions of this contract), constitute a direct or constructive change, or otherwise provide a basis for additional compe…

FAR (chapter 1)

DFARS (chapter 2, Defense)

Source: eCFR, 48 CFR chapters 1 and 2 (GPO GovInfo bulk data) ↗. Rule changes in progress: FAR, DFARS. Terms: glossary.