48 CFR · Federal Acquisition Regulation and Defense supplement

FAR and DFARS navigator

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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4 sections with “alternative system concepts”

  • FAR 2.101 Definitions.
    …ering the foregoing services, outputs may take the form of information, advice, opinions, alternatives, analyses, evaluations, recommendations, training and the day-to-day aid of support personnel needed for the successful performance of on…
  • FAR 34.002 Policy.
    …ed in the initial stage of major programs; and (b) Sustain effective competition between alternative system concepts and sources for as long as it is beneficial.
  • FAR 7.105 Contents of written acquisition plans.
    …ze the technical and contractual history of the acquisition. Discuss feasible acquisition alternatives, the impact of prior acquisitions on those alternatives, and any related in-house effort. (2) Applicable conditions. State all significa…
  • FAR 34.005-1 Competition.
    …tion process, promote full and open competition and sustain effective competition between alternative major system concepts and sources, as long as it is economically beneficial and practicable to do so. Notice of the proposed acquisition s…

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.