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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3 sections with “cost groupings”

  • FAR 15.407-1 Defective certified cost or pricing data.
    (a) If, before agreement on price, the contracting officer learns that any certified cost or pricing data submitted are inaccurate, incomplete, or noncurrent, the contracting officer shall immediately bring the matter to the attention of th…
  • FAR 31.203 Indirect costs.
    (a) For contracts subject to full CAS coverage, allocation of indirect costs shall be based on the applicable provisions. For all other contracts, the applicable CAS provisions in paragraphs (b) through (h) of this section apply. (b) After…
  • FAR 31.001 Definitions.
    As used in this part— Accrued benefit cost method means an actuarial cost method under which units of benefits are assigned to each cost accounting period and are valued as they accrue; i.e., based on the services performed by each employe…

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.