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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10 sections with “Major item or work effort”

  • 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 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 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…
  • DFARS 215.404-71-2 Performance risk.
    … should consider using values less than the norm. For innovative efforts that will have a major positive impact on the product or program, the contracting officer may use values above the norm. (e) Evaluation criteria for management/cost c…
  • 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 …
  • FAR 19.804-2 Agency offering.
    …d be forwarded to the district office servicing the geographical area in which all or the major portion of the construction is to be performed. All requirements, including construction, must be synopsized through the GPE. For construction, …
  • FAR 52.216-7 Allowable Cost and Payment.
    …(G) Reconciliation of books of account (i.e., General Ledger) and claimed direct costs by major cost element. (H) Schedule of direct costs by contract and subcontract and indirect expense applied at claimed rates, as well as a subsidiary s…
  • FAR 52.245-1 Government Property.
    …ractor's operation at any one plant or separate location; or (3) A separate and complete major industrial operation. Demilitarization means rendering a product unusable for, and not restorable to, the purpose for which it was designed or …
  • DFARS 252.234-7002 Earned Value Management System.
    …t award; (2) The exercise of significant contract options; and (3) The incorporation of major modifications. During such reviews, the Government and the Contractor will jointly assess the Contractor's baseline to be used for performance …

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.