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 “segregable, direct costs”

  • FAR 27.408 Cosponsored research and development activities.
    …, process, or computer software, developed or produced under the contract are not readily segregable, the contracting officer may limit the acquisition of, or acquire less than unlimited rights to, any data developed and delivered under the…
  • FAR 52.243-6 Change Order Accounting.
    …n separate accounts, by job order or other suitable accounting procedure, of all incurred segregable, direct costs (less allocable credits) of work, both changed and not changed, allocable to the change. The Contractor shall maintain such a…
  • FAR 43.203 Change order accounting procedures.
    …Accounting clause at 52.243-6. (b) The following categories of direct costs normally are segregable and accountable under the terms of the Change Order Accounting clause: (1) Nonrecurring costs (e.g., engineering costs and costs of obsole…

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.