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 “Defense Cost and Resource Center”

  • DFARS 217.172 Multiyear contracts for supplies.
    …ead of the agency shall not enter into a multiyear contract unless— (1) The Secretary of Defense has submitted to Congress a budget request for full funding of units to be procured through the contract; (2) In the case of a contract for p…
  • FAR 2.101 Definitions.
    …ons by the General Services Administration for civilian agencies and by the Department of Defense for defense agencies. Adequate evidence means information sufficient to support the reasonable belief that a particular act or omission has o…
  • DFARS 234.7100 Policy.
    (a) The cost and software data reporting (CSDR) requirement is mandatory for major defense acquisition programs (as defined in 10 U.S.C. 4201) as specified in DoDI 5000.02, Operation of the Adaptive Acquisition Framework and the DoD 5000.04…
  • DFARS 252.225-7040 Contractor Personnel Supporting U.S. Armed Forces Deployed Outside the United States.
    … exercises, when designated by the Combatant Commander or as directed by the Secretary of Defense. (2) Contract performance in support of U.S. Armed Forces deployed outside the United States may require work in dangerous or austere conditi…

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.