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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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32 sections with “validity”

  • DFARS 227.7103-13 Government right to review, verify, challenge, and validate asserted restrictions.
    …ight to challenge asserted restrictions when there are reasonable grounds to question the validity of the assertion and continued adherence to the assertion would make it impractical to later procure competitively the item to which the data…
  • DFARS 227.7203-13 Government right to review, verify, challenge, and validate asserted restrictions.
    …ment requirements contained in 10 U.S.C. 3781-3786. Resolution of questions regarding the validity of asserted restrictions using the process described at 227.7103-12(b)(2) is strongly encouraged. (3) Computer software. (i) Asserted restri…
  • DFARS 252.227-7019 Validation of Asserted Restrictions—Computer Software.
    …ract. (b) Justification. The Contractor shall maintain records sufficient to justify the validity of any asserted restrictions on the Government's rights to use, modify, reproduce, perform, display, release, or disclose computer software d…
  • DFARS 252.227-7037 Validation of Asserted Restrictions on Technical Data.
    …ng Officer will not issue a challenge unless there are reasonable grounds to question the validity of the assertion that the commercial item was developed exclusively at private expense. (c) Justification. The Contractor or subcontractor a…
  • FAR 42.1701 Procedures.
    …ng expiration, application, and data requirements for systematic monitoring to ensure the validity of the rates. The agreement shall provide for cancellation at the option of either party and shall require the contractor to submit to the AC…
  • DFARS 227.7103-11 Contractor procedures and records.
    …restrictive markings are used only when authorized and to maintain records to justify the validity of asserted restrictions on delivered data. (b) The clause at 252.227-7037, Validation of Asserted Restrictions on Technical Data, requires …
  • DFARS 227.7203-11 Contractor procedures and records.
    …restrictive markings are used only when authorized and to maintain records to justify the validity of restrictive markings. (b) The clause at 252.227-7019, Validation of Asserted Restrictions—Computer Software, requires contractors and the…
  • FAR 2.101 Definitions.
    …easonably expected to contribute to the soundness of estimates of future costs and to the validity of determinations of costs already incurred. They also include, but are not limited to, such factors as— (1) Vendor quotations; (2) Nonrecu…
  • FAR 3.705 Procedures.
    …ss the agency presents may be confronted. However, no inquiry shall be made regarding the validity of a conviction. (4) If the agency head or designee decides to declare void and rescind the contracts involved, that official shall issue a …
  • FAR 7.107-5 Notifications.
    …on shall be made annually within 30 days of the agency's data certification regarding the validity and verification of data entered in the Federal Procurement Data System to the Office of Federal Procurement Policy (see 4.604). (g) Notific…
  • FAR 9.202 Policy.
    …icer when the basis for a referral would involve a challenge by the offeror to either the validity of the qualification requirement or the offeror's compliance with such requirement. (e) The contracting officer need not delay a proposed aw…
  • FAR 9.204 Responsibilities for establishment of a qualification requirement.
    … modified its product, or changed the material or the processing sufficiently so that the validity of previous qualification is questionable; (2) The requirements in the specification have been amended or revised sufficiently to affect the…
  • FAR 9.603 Policy.
    The Government will recognize the integrity and validity of contractor team arrangements; provided, the arrangements are identified and company relationships are fully disclosed in an offer or, for arrangements entered into after submission…
  • FAR 15.407-3 Forward pricing rate agreements.
    …ed during the period covered by the agreement. Conditions that may affect the agreement's validity shall be reported promptly to the ACO. If the ACO determines that a changed condition invalidates the agreement, the ACO shall notify all int…
  • FAR 17.603 Limitations.
    …agraph (a) immediately above, nothing in paragraph (a) immediately above shall affect the validity or legality of such an authorization. (c) For use of project labor agreements, see subpart 22.5.
  • FAR 28.101-3 Authority of an attorney-in-fact for a bid bond.
    … to the Certificate of Competency process of subpart 19.6 if the surety has disavowed the validity of the power of attorney.
  • FAR 32.503-5 Administration of progress payments.
    …ary) shall be made periodically, or when considered desirable by the ACO to determine the validity of progress payments already made and expected to be made. (b) These postpayment reviews or audits shall, as a minimum, include a determinat…
  • FAR 32.907 Interest penalties.
    … office fails to make the required annotation, the Government will determine the demand's validity based on the date the contractor has placed on the demand; provided such date is no later than the 40th day after payment was made. (d) Disa…
  • FAR 42.302 Contract administration functions.
    …as contractor compliance with the Cost Accounting Standards (CAS), affect the quality and validity of the contractor data upon which the Government must rely for its management oversight of the contractor and contract performance. (13) Rev…
  • FAR 52.222-53 Exemption From Application of the Service Contract Labor Standards to Contracts for Certain Services—Requirements.
    …s in paragraphs (a) through (d) of this clause. If the Contractor has reason to doubt the validity of the certification, the requirements of the Service Contract Labor Standards statute shall be included in the subcontract. (g) If the Depa…
  • FAR 52.232-25 Prompt payment.
    … office fails to make the required annotation, the Government will determine the demand's validity based on the date the Contractor has placed on the demand, provided such date is no later than the 40th day after payment was made. (iii) Th…
  • FAR 52.232-26 Prompt Payment for Fixed-Price Architect-Engineer Contracts.
    … office fails to make the required annotation, the Government will determine the demand's validity based on the date the Contractor has placed on the demand, provided such date is no later than the 40th day after payment was made. (iii) Th…
  • FAR 52.232-27 Prompt Payment for Construction Contracts.
    … office fails to make the required annotation, the Government will determine the demand's validity based on the date the Contractor has placed on the demand, provided such date is no later than the 40th day after payment was made. (b) Cont…
  • DFARS 227.7103-12 Government right to establish conformity of markings.
    …unjustified marking. (2) Contracting officers have the right to review and challenge the validity of unjustified markings. However, at any time during performance of a contract and notwithstanding existence of a challenge, the contracting …
  • DFARS 227.7203-12 Government right to establish conformity of markings.
    …unjustified marking. (2) Contracting officers have the right to review and challenge the validity of unjustified markings. However, at any time during performance of a contract and notwithstanding existence of a challenge, the contracting …
  • DFARS 232.072-2 Appropriate information.
    … liabilities such as guarantees, litigation, environmental, or product liabilities; (vi) Validity of accounts receivable and actual value of inventory, as assets; and (vii) Status and aging of accounts payable. (10) Significant ratios su…
  • DFARS 252.227-7000 Non-estoppel.
    … (OCT 1966) The Government reserves the right at any time to contest the enforceability, validity, scope of, or the title to any patent or patent application herein licensed without waiving or forfeiting any right under this contract. (En…
  • DFARS 252.227-7002 Readjustment of payments.
    …herefrom, shall be interpreted in conformity with the court's decision as to the scope of validity of such claims; Provided, however, that in the event such decision is modified or reversed on appeal, the requirement to pay royalties under …
  • DFARS 252.227-7013 Rights in Technical Data—Other Than Commercial Products and Commercial Services.
    …thorized by the terms of this clause; and (2) Maintain records sufficient to justify the validity of any restrictive markings on technical data delivered under this contract. (i) Removal of unjustified and nonconforming markings—(1) Unjus…
  • DFARS 252.227-7014 Rights in Other Than Commercial Computer Software and Other Than Commercial Computer Software Documentation.
    …thorized by the terms of this clause; and (2) Maintain records sufficient to justify the validity of any restrictive markings on computer software or computer software documentation delivered under this contract. (i) Removal of unjustifie…
  • DFARS 252.227-7018 Rights in Other Than Commercial Technical Data and Computer Software—Small Business Innovation Research Program and Small Business Technology Transfer Program.
    …thorized by the terms of this clause; and (2) Maintain records sufficient to justify the validity of any restrictive markings on technical data or computer software delivered under this contract. (i) Removal of unjustified and nonconformi…
  • DFARS 252.232-7008 Assignment of claims (overseas).
    … shall— (1) Identify the assignee by name and complete address; and (2) Acknowledge the validity of the assignment and the right of the named assignee to receive payment in the amount invoiced or vouchered. (End of clause)

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.