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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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30 sections with “unilateral change”

  • FAR 30.603-2 Unilateral and desirable changes.
    (a) Unilateral changes. (1) The contractor may unilaterally change its disclosed or established cost accounting practices, but the Government shall not pay any increased cost, in the aggregate, as a result of the unilateral change. (2) Pri…
  • FAR 30.604 Processing changes to disclosed or established cost accounting practices.
    (a) Scope. This section applies to required, unilateral, and desirable changes in cost accounting practices. (b) Procedures. Upon receipt of the contractor's notification and description of the change in cost accounting practice, the CFAO …
  • FAR 30.603-1 Required changes.
    …rior to the applicability date of the standard, the CFAO shall administer the change as a unilateral change (see 30.603-2). Contractors shall not receive an equitable adjustment that will result in increased costs in the aggregate to the Go…
  • FAR 30.606 Resolving cost impacts.
    … Shall not combine the cost impacts of any of the following: (A) A required change and a unilateral change. (B) A required change and a noncompliance. (C) A desirable change and a unilateral change. (D) A desirable change and a noncompl…
  • FAR 52.230-7 Proposal Disclosure—Cost Accounting Practice Changes.
    …) The offeror shall check “yes” below if the contract award will result in a required or unilateral change in cost accounting practice, including unilateral changes requested to be desirable changes. Yes No If the offeror checked “Yes” a…
  • FAR 52.230-6 Administration of Cost Accounting Standards.
    …h applicable CAS and the change is necessary for the Contractor to remain in compliance. Unilateral change means a change in cost accounting practice from one compliant practice to another compliant practice that a Contractor with a CAS-co…
  • FAR 41.402 Rate changes and regulatory intervention.
    …tory body approves a rate change, any rate change shall be made a part of the contract by unilateral contract modification or otherwise documented in accordance with agency procedures. The approved applicable rate shall be effective on the …
  • FAR 48.103 Processing value engineering change proposals.
    …cation, explaining the reasons for rejection. (c) The following Government decisions are unilateral decisions made solely at the discretion of the Government: (1) The decision to accept or reject a VECP. (2) The determination of collater…
  • FAR 30.001 Definitions.
    …h applicable CAS and the change is necessary for the contractor to remain in compliance. Unilateral change means a change in cost accounting practice from one compliant practice to another compliant practice that a contractor with a CAS-co…
  • FAR 43.103 Types of contract modifications.
    …; and (3) Reflect other agreements of the parties modifying the terms of contracts. (b) Unilateral. A unilateral modification is a contract modification that is signed only by the contracting officer. Unilateral modifications are used, fo…
  • FAR 43.201 General.
    …overnment contracts contain a changes clause that permits the contracting officer to make unilateral changes, in designated areas, within the general scope of the contract. These are accomplished by issuing written change orders on Standard…
  • FAR 2.101 Definitions.
    …rovisioning, and material handling. Forward pricing rate recommendation means a rate set unilaterally by the administrative contracting officer for use by the Government in negotiations or other contract actions when forward pricing rate a…
  • FAR 19.502-6 Setting aside a class of acquisitions for small business.
    …) The determination to set aside a class of acquisitions for small business may be either unilateral or joint. (c) Each class small business set-aside determination shall be in writing and must— (1) Specifically identify the product(s) an…
  • FAR 52.248-1 Value Engineering.
    …with the existing contract. The decision to accept or reject all or part of any VECP is a unilateral decision made solely at the discretion of the Contracting Officer. (f) Sharing rates. If a VECP is accepted, the Contractor shall share in…
  • FAR 14.407-4 Mistakes after award.
    …in bid was made. In addition, it must be clear that the mistake was (1) mutual, or (2) if unilaterally made by the contractor, so apparent as to have charged the contracting officer with notice of the probability of the mistake. (d) Each p…
  • FAR 30.602 Materiality.
    …ract adjustments should the cost impact become material in the future. (d) For required, unilateral, and desirable changes, and CAS noncompliances, when the amount involved is material, the CFAO shall follow the applicable provisions in 30…
  • FAR 32.503-6 Suspension or reduction of payments.
    …l equities of the particular situation. (2) The contracting officer shall take immediate unilateral action only if warranted by circumstances such as overpayments or unsatisfactory contract performance. (3) In all cases, the contracting o…
  • FAR 42.302 Contract administration functions.
    …red, making changes in packaging subcontractors or contract shipping points. (63) Cancel unilateral purchase orders when notified of nonacceptance by the contractor. The CAO shall notify the contracting officer when the purchase order is c…
  • FAR 42.704 Billing rates.
    …l overpayment or underpayment. When agreement cannot be reached, the billing rates may be unilaterally determined by the contracting officer (or cognizant Federal agency official). (d) The elements of indirect cost and the base or bases us…
  • FAR 43.101 Definitions.
    As used in this part— Administrative change means a unilateral (see 43.103(b)) contract change, in writing, that does not affect the substantive rights of the parties (e.g., a change in the paying office or the appropriation data). Effect…
  • FAR 43.102 Policy.
    …ontract modification. (b) Contract modifications, including changes that could be issued unilaterally, shall be priced before their execution if this can be done without adversely affecting the interest of the Government. If a significant …
  • FAR 43.204 Administration.
    …ut administrative changes and changes issued pursuant to a clause giving the Government a unilateral right to make a change (e.g., an option clause) initially require only one document. (b) Definitization. (1)(i) Contracting officers shall…
  • FAR 43.301 Use of forms.
    …on; (ii) Change orders issued under the Changes clause of the contract; (iii) Any other unilateral contract modification issued under a contract clause authorizing such modification without the consent of the contractor; (iv) Administrat…
  • FAR 52.216-7 Allowable Cost and Payment.
    …amounts due to the Contractor under the contract; and (B) Record this determination in a unilateral modification to the contract. (ii) This determination constitutes the final decision of the Contracting Officer in accordance with the Dis…
  • FAR 52.227-11 Patent Rights—Ownership by the Contractor.
    …nce at the end of paragraph (d)(2) of the basic clause: The agency reserves the right to unilaterally amend this contract to identify specific treaties or international agreements entered into by the Government before or after the effectiv…
  • FAR 52.227-13 Patent Rights—Ownership by the Government.
    … at the end of paragraph (c)(1)(i) of the basic clause: The agency reserves the right to unilaterally amend this contract to identify specific treaties or international agreements entered into by the Government before or after the effectiv…
  • FAR 52.232-16 Progress Payments.
    …ting the unliquidated progress payments accordingly. The Government reserves the right to unilaterally change from the ordinary liquidation rate to an alternate rate when deemed appropriate for proper contract financing. (c) Reduction or s…
  • FAR 52.248-3 Value Engineering—Construction.
    …with the existing contract. The decision to accept or reject all or part of any VECP is a unilateral decision made solely at the discretion of the Contracting Officer. (f) Sharing—(1) Rates. The Government's share of savings is determined …
  • DFARS 204.1103 Procedures.
    …on to exercise an option, or at any other time before issuing a modification other than a unilateral modification making an administrative change, ensure that— (i) The contractor's record is active in the SAM database; and (ii) The contra…
  • DFARS 242.1105 Assignment of criticality designator.
    …Procedures: Delivery of Materiel; and (ii) Ordinarily assign criticality designator C to unilateral purchase orders. (2) Only the contracting officer shall change the assigned designator.

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.