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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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91 sections with “written claim”: the first 40

  • FAR 2.101 Definitions.
    …ing the original contractual rights and obligations of the parties. Change order means a written order, signed by the contracting officer, directing the contractor to make a change that the Changes clause authorizes the contracting officer…
  • FAR 27.404-5 Unauthorized, omitted, or incorrect markings.
    … or ignore the markings. (2) Agencies shall not cancel or ignore markings without making written inquiry of the contractor and affording the contractor at least 60 days to provide a written justification substantiating the propriety of the…
  • FAR 33.104 Protests to GAO.
    … a complete copy of the protest within 1 day. (2) Immediately after receipt of the GAO's written notice that a protest has been filed, the agency shall give notice of the protest to the contractor if the award has been made, or, if no awar…
  • FAR 52.212-4 Contract Terms and Conditions—Commercial Products and Commercial Services.
    …t. (c) Changes. Changes in the terms and conditions of this contract may be made only by written agreement of the parties. (d) Disputes. This contract is subject to 41 U.S.C. chapter 71, Contract Disputes. Failure of the parties to this c…
  • FAR 52.219-9 Small Business Subcontracting Plan.
    …he Contractor has reason to question the representations, it may accept a subcontractor's written representations of its size and socioeconomic status as a small business, small disadvantaged business, veteran-owned small business, service-…
  • FAR 52.227-14 Rights in Data—General.
    …ical or professional journals, symposia proceedings, or similar works. The prior, express written permission of the Contracting Officer is required to assert copyright in all other data first produced in the performance of this contract. (…
  • FAR 52.228-14 Irrevocable Letter of Credit.
    …dit (NOV 2014) (a) “Irrevocable letter of credit” (ILC), as used in this clause, means a written commitment by a federally insured financial institution to pay all or part of a stated amount of money, until the expiration date of the lette…
  • FAR 52.232-12 Advance Payments.
    … require. (k) Default. (1) If any of the following events occurs, the Government may, by written notice to the Contractor, withhold further withdrawals from the special account and further payments on this contract: (i) Termination of thi…
  • FAR 52.232-27 Prompt Payment for Construction Contracts.
    …within 10 days after the date the invoice amount is paid; and (C) The Contractor makes a written demand to the designated payment office for additional penalty payment, in accordance with paragraph (a)(6)(ii) of this clause, postmarked not…
  • FAR 52.233-1 Disputes.
    …contract shall be resolved under this clause. (c) Claim, as used in this clause, means a written demand or written assertion by one of the contracting parties seeking, as a matter of right, the payment of money in a sum certain, the adjust…
  • DFARS 252.227-7037 Validation of Asserted Restrictions on Technical Data.
    …the Contractor or subcontractor shall be prepared to furnish to the Contracting Officer a written justification for such asserted restrictions in response to a challenge under paragraph (e) of this clause. (d) Prechallenge request for info…
  • FAR 33.206 Initiation of a claim.
    …emed to be a claim by the contracting officer. (b) The contracting officer shall issue a written decision on any Government claim initiated against a contractor within 6 years after accrual of the claim, unless the contracting parties agre…
  • DFARS 252.232-7008 Assignment of claims (overseas).
    … contained herein may be disclosed, to such assignee upon the Contracting Officer's prior written authorization. (c) Any assignment under this contract shall cover all amounts payable under this contract and not already paid, and shall not…
  • FAR 19.704 Subcontracting plan requirements.
    … cost information or technical expertise in preparing the bid or proposal, where there is written evidence of an intent or understanding that the small business concern will be awarded a subcontract for the related work if the offeror is aw…
  • FAR 28.204-3 Irrevocable letter of credit.
    …bond. (b) The ILC shall be irrevocable, require presentation of no document other than a written demand and the ILC (and letter of confirmation, if any), expire only as provided in paragraph (f) of this subsection, and be issued/confirmed …
  • FAR 28.307-2 Liability.
    …tates with exclusive or monopolistic funds that do not permit workers' compensation to be written by private carriers. (See 28.305(c) for treatment of contracts subject to the Defense Base Act.) (b) General liability. (1) The contracting o…
  • FAR 31.205-47 Costs related to legal and other proceedings.
    …ion of a Federal contract or subcontract; or (2) As a result of compliance with specific written direction of the cognizant contracting officer. (e) Costs incurred in connection with proceedings described in paragraph (b) of this subsecti…
  • FAR 32.411 Agreement for special account at a financial institution.
    …e application of funds withdrawn from the account. The financial institution shall act on written directions from the Contracting Officer, the administering office, or a duly authorized representative of either. The financial institution is…
  • FAR 32.805 Procedure.
    …ve payment from the Government, must file with the addressees listed in 32.802(e) a— (i) Written notice of release of the contractor by the assigning financing institution; (ii) Copy of the release instrument; (iii) Written notice of the…
  • FAR 33.211 Contracting officer's decision.
    …contract administration officer or contracting office, as appropriate; and (4) Prepare a written decision that shall include— (i) A description of the claim or dispute; (ii) A reference to the pertinent contract terms; (iii) A statement…
  • FAR 42.1302 Suspension of work.
    …reasonable period of time. If the suspension is unreasonable, the contractor may submit a written claim for increases in the cost of performance, excluding profit.
  • FAR 52.222-62 Paid Sick Leave Under Executive Order 13706.
    …13.8). (e) Withholding. The Contracting Officer will, upon his or her own action or upon written request of an authorized representative of the Department of Labor, withhold or cause to be withheld from the Contractor under this or any oth…
  • FAR 52.227-17 Rights in Data—Special Works.
    …t subsisting in any data first produced in the performance of this contract without prior written permission of the Contracting Officer. When copyright is asserted, the Contractor shall affix the appropriate copyright notice of 17 U.S.C. 40…
  • FAR 52.244-2 Subcontracts.
    …ral Acquisition Regulation (FAR). Consent to subcontract means the Contracting Officer's written consent for the Contractor to enter into a particular subcontract. Subcontract means any contract, as defined in FAR Subpart 2.1, entered int…
  • DFARS 237.7204 Format and clauses for educational service agreements.
    …y a (insert type of request, such as, delivery order, official Government order, or other written communication). The (insert type of request, such as, delivery order, official Government order, or other written communication) will contain …
  • DFARS 252.227-7025 Limitations on the Use or Disclosure of Government-Furnished Information Marked with Restrictive Legends.
    …) only in the performance of this contract. The Contractor shall not, without the express written permission of the party whose name appears in the legend, release or disclose such data or software to any unauthorized person. (ii) If the C…
  • FAR 3.705 Procedures.
    …e decides to declare void and rescind the contracts involved, that official shall issue a written decision which— (i) States that determination; (ii) Reflects consideration of the fair value of any tangible benefits received and retained …
  • FAR 22.406-9 Withholding from or suspension of contract payments.
    …e withholding, the contracting officer must not reduce or release the withholding without written approval of the Department of Labor. (3) Use withheld funds as provided in paragraph (c) of this subsection to satisfy assessed liquidated da…
  • FAR 28.203-3 Release of security interest.
    …any warranty period (applicable only to performance bonds), whichever is later. (b) Upon written request by the individual surety, the contracting officer may release the security interest on the individual surety's assets in support of a …
  • FAR 32.607-2 Deferment of collection.
    … effect on operations of immediate payment in full. (b) Upon receipt of the contractor's written request, the contracting officer shall promptly provide a notification to the payment office and advise the payment office that the contractor…
  • FAR 32.907 Interest penalties.
    …thin 10 days after the date the invoice amount is paid; and (iii) The contractor makes a written demand to the designated payment office for additional penalty payment in accordance with paragraph (c)(2) of this section, postmarked not lat…
  • FAR 33.101 Definitions.
    …fected by the award of a contract or by the failure to award a contract. Protest means a written objection by an interested party to any of the following: (1) A solicitation or other request by an agency for offers for a contract for the …
  • FAR 49.109-7 Settlement by determination.
    …contractor at least 15 days notice by certified mail (return receipt requested) to submit written evidence, so as to reach the TCO on or before a stated date, substantiating the amount previously proposed. (c) Justification of settlement p…
  • FAR 52.232-25 Prompt payment.
    …within 10 days after the date the invoice amount is paid; and (C) The Contractor makes a written demand to the designated payment office for additional penalty payment, in accordance with paragraph (a)(7)(ii) of this clause, postmarked not…
  • FAR 52.232-26 Prompt Payment for Fixed-Price Architect-Engineer Contracts.
    …within 10 days after the date the invoice amount is paid; and (C) The contractor makes a written demand to the designated payment office for additional penalty payment, in accordance with paragraph (a)(6)(ii) of this clause, postmarked not…
  • FAR 52.249-2 Termination for Convenience of the Government (Fixed-Price).
    …effective date of termination, unless extended in writing by the Contracting Officer upon written request of the Contractor within this 120-day period. (d) After expiration of the plant clearance period as defined in subpart 49.001 of the …
  • FAR 52.249-3 Termination for Convenience of the Government (Dismantling, Demolition, or Removal of Improvements).
    …effective date of termination, unless extended in writing by the Contracting Officer upon written request of the Contractor within this 120-day period. (d) After expiration of the plant clearance period as defined in subpart 49.001 of the …
  • FAR 52.249-5 Termination for Convenience of the Government (Educational and Other Nonprofit Institutions).
    …effective date of termination, unless extended in writing by the Contracting Officer upon written request of the Contractor within this 120-day period. (d) After termination, the Contractor shall submit a final termination settlement propo…
  • FAR 52.249-6 Termination (Cost-Reimbursement).
    …effective date of termination, unless extended in writing by the Contracting Officer upon written request of the Contractor within this 120-day period. (e) After expiration of the plant clearance period as defined in subpart 49.001 of the …
  • FAR 52.249-8 Default (Fixed-Price Supply and Service).
    …rvice) (APR 1984) (a)(1) The Government may, subject to paragraphs (c) and (d) below, by written notice of default to the Contractor, terminate this contract in whole or in part if the Contractor fails to— (i) Deliver the supplies or to p…

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.