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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15 sections with “modified coverage”

  • FAR 30.201 Contract requirements.
    …201-1(b) shall be subject to CAS. A CAS-covered contract may be subject to either full or modified coverage. The rules for determining whether full or modified coverage applies are in 48 CFR 9903.201-2.
  • FAR 30.201-4 Contract clauses.
    …acts, unless the contract is exempted (see 48 CFR 9903.201-1), the contract is subject to modified coverage (see 48 CFR 9903.201-2), or the clause prescribed in paragraph (c) of this subsection is used. (2) The clause at FAR 52.230-2 requi…
  • FAR 52.230-1 Cost Accounting Standards Notices and Certification.
    …ution, Part II does not apply unless the contemplated contract will be subject to full or modified CAS coverage pursuant to 48 CFR 9903.201-2(c)(5) or 9903.201-2(c)(6), respectively. I. Disclosure Statement—Cost Accounting Practices and Ce…
  • FAR 31.205-18 Independent research and development and bid and proposal costs.
    … that are fully-CAS-covered shall be subject to all requirements of 48 CFR 9904.420. (2) Modified CAS-covered and non-CAS-covered contracts. Contracts that are not CAS-covered or that contain terms or conditions requiring modified CAS cove…
  • FAR 4.2304 Procedures.
    …e determination of the program office or requiring activity. (ii) If the contract is not modified within the time specified in paragraph (c)(2)(i) of this section, then the contract file shall be documented providing rationale why the cont…
  • FAR 1.401 Definition.
    …tion requires its use. (c) The use of any solicitation provision or contract clause with modified or alternate language that is not authorized by the FAR (see definition of “modification” in 52.101(a) and definition of “alternate” in 2.101…
  • FAR 2.101 Definitions.
    … either single or multipurpose integrated test units engineered, designed, fabricated, or modified to accomplish special purpose testing in performing a contract. It consists of items or assemblies of equipment including foundations and sim…
  • FAR 31.203 Indirect costs.
    …ed for allocation to work performed in that period. (1) For contracts subject to full or modified CAS coverage, the contractor shall follow the criteria and guidance in 48 CFR 9904.406 for selecting the cost accounting periods to be used i…
  • FAR 50.103-2 Types of contract adjustment.
    …e some adjustment appropriate. (b) Correcting mistakes. (1) A contract may be amended or modified to correct or mitigate the effect of a mistake. The following are examples of mistakes that may make such action appropriate: (i) A mistake …
  • FAR 50.104-3 Special procedures for unusually hazardous or nuclear risks.
    …s for it. If recommending approval, the contracting officer shall forward the request (as modified, if necessary, by negotiation) through channels to the appropriate official specified in 50.102-1(d). The contracting officer's submission sh…
  • FAR 50.201 Definitions.
    …ns. Qualified Anti-Terrorism Technology (QATT) means any technology designed, developed, modified, procured, or sold for the purpose of preventing, detecting, identifying, or deterring acts of terrorism or limiting the harm such acts might…
  • FAR 52.250-3 SAFETY Act Block Designation/Certification.
    …T). Qualified Anti-Terrorism Technology (QATT) means any technology designed, developed, modified, procured, or sold for the purpose of preventing, detecting, identifying, or deterring acts of terrorism or limiting the harm such acts might…
  • FAR 52.250-4 SAFETY Act Pre-qualification Designation Notice.
    …ns. Qualified Anti-Terrorism Technology (QATT) means any technology designed, developed, modified, procured, or sold for the purpose of preventing, detecting, identifying, or deterring acts of terrorism or limiting the harm such acts might…
  • FAR 52.250-5 SAFETY Act—Equitable Adjustment.
    …T). Qualified Anti-Terrorism Technology (QATT) means any technology designed, developed, modified, procured, or sold for the purpose of preventing, detecting, identifying, or deterring acts of terrorism or limiting the harm such acts might…
  • DFARS 202.101 Definitions.
    …een knowingly mismarked, misidentified, or otherwise misrepresented to be an authentic, unmodified electronic part from the original manufacturer, or a source with the express written authority of the original manufacturer or current design…

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.