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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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125 sections with “Major contractor”: the first 40

  • FAR 27.406-3 Major system acquisition.
    …The clause at 52.227-21, Technical Data Declaration, Revision, and Withholding of Payment—Major Systems, implements 41 U.S.C. 2302(e). When using the clause at 52.227-21, the section of the contract specifying data delivery requirements (se…
  • DFARS 207.106 Additional requirements for major systems.
    …prohibited by 10 U.S.C. 3208(d)(1) from requiring offers for development or production of major systems that would enable the Government to use technical data to competitively reprocure identical items or components of the system if the ite…
  • DFARS 252.209-7008 Notice of Prohibition Relating to Organizational Conflict of Interest—Major Defense Acquisition Program.
    …llowing provision: Notice of Prohibition Relating to Organizational Conflict of Interest—Major Defense Acquisition Program (DEC 2010) (a) Definitions. “Major subcontractor” is defined in the clause at 252.209-7009, Organizational Conflict…
  • DFARS 252.209-7009 Organizational Conflict of Interest—Major Defense Acquisition Program.
    …rescribed in 209.571-8(b), use the following clause: Organizational Conflict of Interest—Major Defense Acquisition Program (MAY 2019) (a) Definition. As used in this clause— Major subcontractor means a subcontractor that is awarded a sub…
  • DFARS 231.205-18 Independent research and development and bid and proposal costs.
    …receding fiscal year is not subject to the limitations in paragraph (c) of this section. Major contractor means any contractor whose covered segments allocated a total of more than $11 million in IR&D costs and B&P costs to covered contrac…
  • FAR 2.101 Definitions.
    … (see 9.505-1(b)) to ensure the effective operation and maintenance of a weapon system or major system as defined in OMB Circular No. A-109 or to provide direct support of a weapon system that is essential to research, development, producti…
  • FAR 15.407-2 Make-or-buy programs.
    …nformation required from a contractor in a make-or-buy program shall be confined to those major items or work efforts that normally would require company management review of the make-or-buy decision because they are complex, costly, needed…
  • FAR 15.407-4 Should-cost review.
    …w examining the contractor's entire operation (including plant-wide overhead and selected major subcontractors) to a small-scale tailored review examining specific portions of a contractor's operation. (b) Program should-cost review. (1) A…
  • FAR 27.409 Solicitation provisions and contract clauses
    …the clause at 52.227-21, Technical Data Declaration, Revision, and Withholding of Payment—Major Systems, in contracts for major systems acquisitions or for support of major systems acquisitions. This requirement includes contracts for detai…
  • FAR 48.102 Policies.
    …ram requirement clause (52.248-1, Alternates I or II) in initial production contracts for major systems programs (see definition of major system in 34.001) and for contracts for major systems research and development except where the contra…
  • FAR 52.227-21 Technical Data Declaration, Revision, and Withholding of Payment—Major Systems.
    …t the following clause: Technical Data Declaration, Revision, and Withholding of Payment—Major Systems (MAY 2014) (a) Scope of declaration. The Contractor shall provide, in accordance with 41 U.S.C. 2302(e)(7), the following declaration w…
  • DFARS 209.570-2 Policy.
    … prohibits any entity performing lead system integrator functions in the acquisition of a major system by DoD from having any direct financial interest in the development or construction of any individual system or element of any system of …
  • DFARS 209.571-1 Definitions.
    …ith system responsibility means a prime contractor for the development or production of a major system, if the prime contractor is not expected at the time of award to perform a substantial portion of the work on the system and the major su…
  • DFARS 209.571-6 Identification of organizational conflicts of interest.
    When evaluating organizational conflicts of interest for major defense acquisition programs or pre-major defense acquisition programs, contracting officers shall consider— (a) The ownership of business units performing systems engineering …
  • DFARS 209.571-7 Systems engineering and technical assistance contracts.
    …all obtain advice on systems architecture and systems engineering matters with respect to major defense acquisition programs or pre-major defense acquisition programs from Federally Funded Research and Development Centers or other sources i…
  • DFARS 235.006 Contracting methods and contract type.
    (b)(i) For major defense acquisition programs as defined in 10 U.S.C. 4201— (A) Follow the procedures at 234.004; and (B) Notify the milestone decision authority of an intent not to exercise a fixed-price production option on a developmen…
  • DFARS 252.211-7008 Use of Government-assigned Serial Numbers.
    …umerals in a fixed human-readable information format (text) conveying information about a major end item, which is provided to a contractor by the requiring activity with accompanying technical data instructions for marking the Government-a…
  • DFARS 252.215-7010 Requirements for Certified Cost or Pricing Data and Data Other Than Certified Cost or Pricing Data.
    … determination, and if available, a Government point of contact; (B) For subsystems of a major weapon system and components and spare parts of a major weapon system or subsystem of a major weapon system that have not previously been determ…
  • FAR 5.405 Exchange of acquisition information.
    …ese agencies or contracting activities is necessary to promote uniformity of treatment of major issues and the resolution of particularly difficult or controversial issues. The exchange and coordination of information is particularly benefi…
  • FAR 7.105 Contents of written acquisition plans.
    …urce(s), and discuss why full and open competition cannot be obtained. (ii) Identify the major components or subsystems. Discuss component breakout plans relative to these major components or subsystems. Describe how competition will be so…
  • DFARS 212.209 Determination of price reasonableness.
    …t necessary to support such market research, the contracting officer— (1) In the case of major weapon systems, for subsystems of major weapon systems and components and spare parts of major weapon systems and of subsystems of major weapon …
  • DFARS 252.209-7006 Limitations on Contractors Acting as Lead System Integrators.
    …ranted, no contractor performing lead system integrator functions in the acquisition of a major system by the Department of Defense may have any direct financial interest in the development or construction of any individual system or elemen…
  • DFARS 252.209-7007 Prohibited Financial Interests for Lead System Integrators.
    …ith system responsibility means a prime contractor for the development or production of a major system, if the prime contractor is not expected at the time of award to perform a substantial portion of the work on the system and the major su…
  • DFARS 253.209-1 Responsible prospective contractors.
    …air of aircraft. (H) Other. If the contracting officer wants an assessment of other than major factors A-E and other factors A-G, check this factor. Explain the desired information in the Remarks sections.
  • FAR 46.407 Nonconforming supplies or services.
    …fficer ordinarily must reject supplies or services when the nonconformance is critical or major or the supplies or services are otherwise incomplete. However, there may be circumstances (e.g., reasons of economy or urgency) when the contrac…
  • FAR 52.234-2 Notice of Earned Value Management System—Preaward Integrated Baseline Review.
    …VM system will be compliant with the EIA-748 guidelines. (c) Offerors shall identify the major subcontractors, or major subcontracted effort if major subcontractors have not been selected subject to the guidelines. The prime Contractor and…
  • FAR 52.234-3 Notice of Earned Value Management System—Postaward Integrated Baseline Review.
    …VM system will be compliant with the EIA-748 guidelines. (c) Offerors shall identify the major subcontractors, or major subcontracted effort if major subcontractors have not been selected, planned for application of the guidelines. The pri…
  • FAR 52.246-26 Reporting Nonconforming Items.
    …al organization, or an organization to which design responsibility has been transferred. Major nonconformance means a nonconformance, other than critical, that is likely to result in failure of the supplies or services, or to materially re…
  • DFARS 202.101 Definitions.
    …ice of the Secretary of Defense. (For emergency acquisition flexibilities, see 218.270.) Major defense acquisition program is defined in 10 U.S.C. 4201. Material weakness means a deficiency or combination of deficiencies in the internal c…
  • DFARS 212.102 Applicability.
    …r “commercial service” definition in FAR 2.101. See 234.7002(b) and (c) for subsystems of major weapon systems and components and spare parts of major weapon systems and of subsystems of major weapon systems; (B) Include the written determ…
  • DFARS 215.403-1 Prohibition on obtaining certified cost or pricing data (10 U.S.C. chapter 271 and 41 U.S.C. chapter 35).
    …ducts or commercial services, except see 234.7002(e) for pricing commercial subsystems of major weapon systems and components and spare parts of major weapon systems and of subsystems of major weapon systems. (B) When applying the commerci…
  • DFARS 218.203 Emergency declaration or major disaster declaration.
    (1) Establishing or maintaining alternative sources. PGI contains a sample format for Determination and Findings citing the authority of FAR 6.202(a), regarding exclusion of a particular source in order to establish or maintain an alternati…
  • DFARS 227.7103-1 Policy.
    …g to those items may be restricted. (e) As provided in 10 U.S.C. 3208, solicitations for major systems development contracts shall not require offerors to submit proposals that would permit the Government to acquire competitively items ide…
  • DFARS 236.570 Additional provisions and clauses.
    …er— (i) 252.236-7003, Payment for Mobilization and Preparatory Work. Use this clause for major construction contracts that require— (A) Major or special items of plant and equipment; or (B) Large stockpiles of material which are in exces…
  • DFARS 237.102-72 Contracts for management services.
    … perform acquisition support functions with respect to the development or production of a major system, only if— (a) The contract prohibits the contractor from performing inherently governmental functions; (b) The DoD organization respons…
  • DFARS 242.302 Contract administration functions.
    … contract administration functions related to IR&D projects and B&P projects performed by major contractors, see 242.771-3(a). (12) Also perform all payment administration in accordance with any applicable payment clauses. (13)(A) Do not …
  • DFARS 252.249-7002 Notification of Anticipated Contract Termination or Reduction.
    …ed Contract Termination or Reduction (DEC 2022) (a) Definition. As used in this clause— Major defense program means a program that is carried out to produce or acquire a major system (as defined in 10 U.S.C. 3041(a)). (b) Scope. This cla…
  • FAR 6.302-1 Only one responsible source and no other supplies or services will satisfy agency requirements.
    …urce in the case of a follow-on contract for the continued development or production of a major system or highly specialized equipment, including major components thereof, when it is likely that award to any other source would result in— (…
  • FAR 9.505-1 Providing systems engineering and technical direction.
    …r its production shall not— (1) Be awarded a contract to supply the system or any of its major components; or (2) Be a subcontractor or consultant to a supplier of the system or any of its major components. (b) Systems engineering includ…
  • FAR 13.201 General.
    … assistance pursuant to 22 U.S.C. 2292 et seq.; or to support response to an emergency or major disaster (42 U.S.C. 5122), the micro-purchase threshold is— (i) $25,000 in the case of any contract to be awarded and performed, or purchase to…

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.