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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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636 sections with “Interest”: the first 40

  • FAR 28.203-3 Release of security interest.
    …After consultation with legal counsel, the contracting officer shall release the security interest on the individual surety's assets using the Optional Form 91, Release of Personal Property from Escrow, or a similar release as soon as possi…
  • FAR 32.407 Interest.
    (a) Except as provided in paragraph (d) below, the contracting officer shall charge interest on the daily unliquidated balance of all advance payments at the higher of— (1) The published prime rate of the financial institution (depository)…
  • FAR 32.608-2 Interest credits.
    (a) An equitable interest credit shall be applied under the following circumstances: (1) When the amount of debt initially determined is subsequently reduced; e.g., through a successful appeal. (2) When any amount collected by the Governm…
  • FAR 32.907 Interest penalties.
    (a) Late payment. The designated payment office will pay an interest penalty automatically, without request from the contractor, when all of the following conditions, if applicable, have been met: (1) The designated billing office received…
  • FAR 33.208 Interest on claims.
    (a) The Government shall pay interest on a contractor's claim on the amount found due and unpaid from the date that— (1) The contracting officer receives the claim (certified if required by 33.207(a)); or (2) Payment otherwise would be du…
  • FAR 52.203-16 Preventing Personal Conflicts of Interest.
    As prescribed in 3.1106, insert the following clause: Preventing Personal Conflicts of Interest (JUN 2020) (a) Definitions. As used in this clause— Acquisition function closely associated with inherently governmental functions means supp…
  • FAR 52.232-17 Interest.
    As prescribed in 32.611(a) and (b), insert the following clause: Interest (MAY 2014) (a) Except as otherwise provided in this contract under a Price Reduction for Defective Certified Cost or Pricing Data clause or a Cost Accounting Standa…
  • DFARS 209.572 Conflicts of interest in certain consulting services.
    … services with one or more covered foreign entities; and (2) Does not have a conflict-of-interest mitigation plan that is auditable by a contract oversight entity and approved by the contracting officer. (d) Waiver. (1) If the prospective…
  • DFARS 252.209-7007 Prohibited Financial Interests for Lead System Integrators.
    As prescribed in 209.570-4(b), use the following clause: Prohibited Financial Interests for Lead System Integrators (DEC 2022) (a) Definitions. As used in this clause— (1) Lead system integrator includes lead system integrator with syste…
  • DFARS 252.209-7008 Notice of Prohibition Relating to Organizational Conflict of Interest—Major Defense Acquisition Program.
    …se the following provision: Notice of Prohibition Relating to Organizational Conflict of Interest—Major Defense Acquisition Program (DEC 2010) (a) Definitions. “Major subcontractor” is defined in the clause at 252.209-7009, Organizational…
  • DFARS 252.209-7009 Organizational Conflict of Interest—Major Defense Acquisition Program.
    As prescribed in 209.571-8(b), use the following clause: Organizational Conflict of Interest—Major Defense Acquisition Program (MAY 2019) (a) Definition. As used in this clause— Major subcontractor means a subcontractor that is awarded a…
  • DFARS 252.209-7012 Prohibition Relating to Conflicts of Interest in Consulting Services—Certification.
    …scribed in 209.572(e), use the following provision: Prohibition Relating to Conflicts of Interest in Consulting Services—Certification (Oct 2025) (a) Definitions. As used in this provision— Consulting services means advisory and assistan…
  • FAR 42.709-5 Computing interest.
    For 42.709-2(a)(1)(ii), compute interest on any paid portion of the disallowed cost as follows: (a) Consider the overpayment to have occurred, and interest to have begun accumulating, from the midpoint of the contractor's fiscal year. Use …
  • FAR 32.608-1 Interest charges.
    Unless specified otherwise in the clause at 52.232-17, Interest, interest charges shall apply to any contract debt unpaid after 30 days from the issuance of a demand unless— (a) The contract is a kind excluded under 32.611; or (b) The con…
  • FAR 52.209-6 Protecting the Government's Interest When Subcontracting With Contractors Debarred, Suspended, Proposed for Debarment, or Voluntarily Excluded.
    As prescribed in 9.409, insert the following clause: Protecting the Government's Interest When Subcontracting With Contractors Debarred, Suspended, Proposed for Debarment, or Voluntarily Excluded (JAN 2025) (a) Definition. Commercially av…
  • FAR 31.205-20 Interest and other financial costs.
    Interest on borrowings (however represented), bond discounts, costs of financing and refinancing capital (net worth plus long-term liabilities), legal and professional fees paid in connection with preparing prospectuses, and costs of prepar…
  • FAR 6.302-7 Public interest.
    …ion need not be provided for when the agency head determines that it is not in the public interest in the particular acquisition concerned. (b) Application. This authority may be used when none of the other authorities in 6.302 apply. (c)…
  • FAR 8.716 Change-of-name and successor in interest procedures.
    When the Committee recognizes a name change or a successor in interest for an AbilityOneparticipating nonprofit agency providing supplies or services on the Procurement List— (a) The Committee will provide a notice of a change to the Procu…
  • DFARS 209.571-6 Identification of organizational conflicts of interest.
    When evaluating organizational conflicts of interest for major defense acquisition programs or pre-major defense acquisition programs, contracting officers shall consider— (a) The ownership of business units performing systems engineering …
  • FAR 22.1010 Notification to interested parties under collective bargaining agreements.
    (a) The contracting officer should determine whether the incumbent prime contractor's or its subcontractors' service employees performing on the current contract are represented by a collective bargaining agent. If there is a collective bar…
  • FAR 32.608 Interest.
  • DFARS 206.302-7 Public interest.
    (c) Limitations. For the defense agencies, the written determination to use this authority must be made by the Secretary of Defense.
  • DFARS 209.571 Organizational conflicts of interest in major defense acquisition programs.
  • FAR 2.101 Definitions.
    … 3201.2). Broad agency announcement means a general announcement of an agency's research interest including criteria for selecting proposals and soliciting the participation of all offerors capable of satisfying the Government's needs (see…
  • FAR 3.1101 Definitions.
    …r to whom such an individual could submit the required disclosures. Personal conflict of interest means a situation in which a covered employee has a financial interest, personal activity, or relationship that could impair the employee's a…
  • FAR 3.1103 Procedures.
    … Have procedures in place to screen covered employees for potential personal conflicts of interest by— (i) Obtaining and maintaining from each covered employee, when the employee is initially assigned to the task under the contract, a disc…
  • FAR 3.1104 Mitigation or waiver.
    …nal circumstances, if the contractor cannot satisfactorily prevent a personal conflict of interest as required by paragraph (b)(2)(i) of the clause at 52.203-16, Preventing Personal Conflicts of Interest, the contractor may submit a request…
  • FAR 9.502 Applicability.
    …s not limited to any particular kind of acquisition. However, organizational conflicts of interest are more likely to occur in contracts involving— (1) Management support services; (2) Consultant or other professional services; (3) Contr…
  • FAR 9.504 Contracting officer responsibilities.
    …cquisitions in order to— (1) Identify and evaluate potential organizational conflicts of interest as early in the acquisition process as possible; and (2) Avoid, neutralize, or mitigate significant potential conflicts before contract awar…
  • FAR 15.407-1 Defective certified cost or pricing data.
    …n to the price adjustment, the Government is entitled to recovery of any overpayment plus interest on the overpayments. The Government is also entitled to penalty amounts on certain of these overpayments. Overpayment occurs only when paymen…
  • FAR 19.302 Protesting a small business representation or rerepresentation.
    …s are found at 13 CFR part 121. (2) An offeror, the contracting officer, SBA, or another interested party may protest the small business representation of an offeror in a specific offer for a contract. However, for competitive 8(a) contrac…
  • FAR 19.306 Protesting a firm's status as a HUBZone small business concern.
    (a) Definition. As used in this section— Interested party has the meaning given in 13 CFR 126.103. (b)(1) For sole-source procurements, SBA or the contracting officer may protest the prospective contractor's certified HUBZone status; for …
  • FAR 19.307 Protesting a firm's status as a service-disabled veteran-owned small business concern.
    (a) Definition. Interested party, as used in this section, has the meaning given in 13 CFR 134.1002(b). (b) General. (1) For sole source acquisitions, the contracting officer, the Department of Veterans Affairs (VA), or SBA may protest the…
  • FAR 19.308 Protesting a firm's status as an economically disadvantaged women-owned small business concern or women-owned small business concern eligible under the Women-Owned Small Business Program.
    (a) Definition. Interested party, as used in this section, has the meaning given in 13 CFR 127.102. (b)(1) For sole source acquisitions, the contracting officer or SBA may protest the offeror's status as an economically disadvantaged women…
  • FAR 25.703-4 Waiver.
    …of supplies or equipment is not available from any other source and it is in the national interest. (2) Prior to submitting the waiver request, the request must be reviewed and cleared by the agency head. (c) In general, all waiver reques…
  • FAR 31.205-41 Taxes.
    …en by the contractor at the direction or with the concurrence of the contracting officer. Interest or penalties incurred by the contractor for non-payment of any tax at the direction of the contracting officer or by reason of the failure of…
  • FAR 32.202-1 Policy.
    …e financing terms in contracts for commercial purchases when doing so will be in the best interest of the Government. (b) Authorization. Commercial interim payments and commercial advance payments may be made under the following circumstan…
  • FAR 32.205 Procedures for offeror-proposed commercial contract financing.
    …e financing terms. The contracting officer must then determine which offer is in the best interests of the United States. (b) Solicitations. The contracting officer must include in the solicitation the provision at 52.232-31, Invitation to…
  • FAR 32.410 Findings, determination, and authorization.
    …g unusual facts and circumstances favor making advance payments to the Contractor without interest: [List the pertinent facts and circumstances.] Determination (b) Based on the findings in (a) above, the undersigned determined that the m…
  • FAR 32.604 Demand for payment.
    …e date identified in the demand for payment. (3) The basis for and amount of any accrued interest or penalty. (4)(i) For debts resulting from specific contract terms (e.g., debts resulting from incentive clause provisions, Quarterly Limit…

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.