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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4 sections with “per diem rate”

  • FAR 52.232-3 Payments Under Personal Services Contracts.
    …yment due dates in accordance with agency regulations, in solicitations and contracts for personal services: Payments Under Personal Services Contracts (APR 1984) The Government shall pay the Contractor for the services performed by the C…
  • DFARS 237.104 Personal services contracts.
    (b)(i) Authorization to acquire the personal services of experts and consultants is included in 10 U.S.C. 129b. Personal service contracts for expert and consultant services must also be authorized by a determination and findings (D&F) in a…
  • FAR 31.109 Advance agreements.
    …les for which advance agreements may be particularly important are— (1) Compensation for personal services, including but not limited to allowances for off-site pay, incentive pay, location allowances, hardship pay, cost of living differen…
  • FAR 31.205-46 Travel costs.
    …transportation, lodging, meals, and incidental expenses. (1) Costs incurred by contractor personnel on official company business are allowable, subject to the limitations contained in this subsection. Costs for transportation may be based o…

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.