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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7 sections with “limited sources justification”

  • FAR 8.405-6 Limiting sources.
    …b) of this section— (a) Orders or BPAs exceeding the micro-purchase threshold based on a limited sources justification—(1) Circumstances justifying limiting the source. (i) For a proposed order or BPA with an estimated value exceeding the …
  • FAR 6.302-1 Only one responsible source and no other supplies or services will satisfy agency requirements.
    …m only one responsible source, or, for DoD, NASA, and the Coast Guard, from only one or a limited number of responsible sources, and no other type of supplies or services will satisfy agency requirements, full and open competition need not …
  • FAR 52.248-1 Value Engineering.
    …thout limitations.” If a VECP is accepted, the Contractor hereby grants the Government unlimited rights in the VECP and supporting data, except that, with respect to data qualifying and submitted as limited rights technical data, the Gover…
  • FAR 5.301 General.
    …— (i) Federal Supply Schedule (FSS) orders or Blanket Purchase Agreements supported by a limited-source justification (excluding brand name) in accordance with 8.405-6; or (ii) Task or delivery orders awarded without providing fair opport…
  • FAR 6.302-3 Industrial mobilization; engineering, developmental, or research capability; or expert services.
    … or not the expert is expected to testify. Examples of such services include, but are not limited to: (A) Assisting the Government in the analysis, presentation, or defense of any claim or request for adjustment to contract terms and condi…
  • FAR 5.102 Availability of solicitations.
    …subpart 4.5) is used in the solicitation process, availability of the solicitation may be limited to the electronic medium. (e) Provide copies of a solicitation issued under other than full and open competition to firms requesting copies t…
  • FAR 15.404-1 Proposal analysis techniques.
    …s to ensure a fair and reasonable price. Examples of such techniques include, but are not limited to, the following: (i) Comparison of proposed prices received in response to the solicitation. Normally, adequate price competition establish…

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.