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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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41 sections with “prohibition period”: the first 40

  • DFARS 203.570-2 Prohibition period.
    DoD has sole responsibility for determining the period of the prohibition described in paragraph (b) of the clause at 252.203-7001, Prohibition on Persons Convicted of Fraud or Other Defense-Contract-Related Felonies. The prohibition period…
  • FAR 3.104-3 Statutory and related prohibitions, restrictions, and requirements.
    (a) Prohibition on disclosing procurement information (41 U.S.C. 2102). (1) A person described in paragraph (a)(2) of this subsection must not, other than as provided by law, knowingly disclose contractor bid or proposal information or sour…
  • DFARS 252.225-7049 Prohibition on Acquisition of Certain Foreign Commercial Satellite Services—Representations.
    As prescribed in 225.772-5(a), use the following provision: Prohibition on Acquisition of Certain Foreign Commercial Satellite Services—Representations (DEC 2018) (a) Definitions. As used in this provision— Covered foreign country, forei…
  • FAR 4.2104 Waivers.
    …) Executive agencies. The head of an executive agency may, on a one-time basis, waive the prohibition at 4.2102(a) with respect to a Government entity (e.g., requirements office, contracting office) that requests such a waiver. (1) Waiver.…
  • FAR 52.209-10 Prohibition on Contracting With Inverted Domestic Corporations.
    As prescribed in 9.108-5(b), insert the following clause: Prohibition on Contracting With Inverted Domestic Corporations (NOV 2015) (a) Definitions. As used in this clause— Inverted domestic corporation means a foreign incorporated entit…
  • FAR 52.212-3 Offeror Representations and Certifications—Commercial Products and Commercial Services.
    …elecommunications equipment or services has the meaning provided in the clause 52.204-25, Prohibition on Contracting for Certain Telecommunications and Video Surveillance Services or Equipment. Economically disadvantaged women-owned small …
  • FAR 52.212-5 Contract Terms and Conditions Required To Implement Statutes or Executive Orders—Commercial Products and Commercial Services.
    …pplicable to acquisitions of commercial products and commercial services: (1) 52.203-19, Prohibition on Requiring Certain Internal Confidentiality Agreements or Statements (JAN 2017) (section 743 of Division E, Title VII, of the Consolidat…
  • FAR 52.213-4 Terms and Conditions—Simplified Acquisitions (Other Than Commercial Products and Commercial Services).
    … The clauses listed below implement provisions of law or Executive order: (i) 52.203-19, Prohibition on Requiring Certain Internal Confidentiality Agreements or Statements (JAN 2017) (section 743 of Division E, Title VII, of the Consolidat…
  • FAR 52.244-6 Subcontracts for Commercial Products and Commercial Services.
    …, or applicable elements of the intelligence community—see FAR 3.900(a). (iv) 52.203-19, Prohibition on Requiring Certain Internal Confidentiality Agreements or Statements (JAN 2017). (v) 52.204-21, Basic Safeguarding of Covered Contracto…
  • DFARS 237.102-70 Prohibition on contracting for firefighting or security-guard functions.
    … functions by reason of a deployment. (b) Under Section 2907 of Public Law 103-160, this prohibition does not apply to services at installations being closed (see subpart 237.74). (c)(1) Under section 332 of Public Law 107-314, as amended…
  • FAR 52.227-14 Rights in Data—General.
    … any time after said period and the data will no longer be made subject to any disclosure prohibitions. (iii) If the Contractor provides written justification to substantiate the propriety of the markings within the period set in paragraph…
  • FAR 3.104-6 Ethics advisory opinions regarding prohibitions on a former official's acceptance of compensation from a contractor.
    (a) An official or former official of a Federal agency who does not know whether he or she is or would be precluded by 41 U.S.C. 2104 (see 3.104-3(d)) from accepting compensation from a particular contractor may request advice from the appr…
  • FAR 3.802 Statutory prohibition and requirement.
    (a) 31 U.S.C. 1352 prohibits a recipient of a Federal contract, grant, loan, or cooperative agreement from using appropriated funds to pay any person for influencing or attempting to influence an officer or employee of any agency, a Member …
  • FAR 15.403-1 Prohibition on obtaining certified cost or pricing data (10 U.S.C. chapter 271 and 41 U.S.C. chapter 35).
    (a) Certified cost or pricing data shall not be obtained for acquisitions at or below the simplified acquisition threshold. (b) Exceptions to certified cost or pricing data requirements. The contracting officer shall not require certified …
  • DFARS 232.1108-70 Prohibition of Governmentwide commercial purchase card as a method of payment when the tax on certain foreign procurements applies.
    The contracting officer shall not authorize the Governmentwide commercial purchase card as a method of payment during any contract period of performance if the contract includes the clause at FAR 52.229-12, Tax on Certain Foreign Procuremen…
  • FAR 9.505-2 Preparing specifications or work statements.
    …a competitive advantage, it is an unavoidable one that is not considered unfair; hence no prohibition should be imposed. (b)(1) If a contractor prepares, or assists in preparing, a work statement to be used in competitively acquiring a sys…
  • FAR 27.409 Solicitation provisions and contract clauses
    …rt is required to be included in contracts solely for the acquisition, without disclosure prohibitions, of books, publications, and similar items in the exact form in which the items exist prior to the request for purchase (i.e., the off-th…
  • FAR 35.017-1 Sponsoring agreements.
    …d earnings (reserves) and the development of a plan for their use and disposition. (4) A prohibition against the FFRDC competing with any non-FFRDC concern in response to a Federal agency request for proposal for other than the operation o…
  • FAR 52.222-26 Equal Opportunity.
    …osed the compensation of the employee or applicant or another employee or applicant. This prohibition against discrimination does not apply to instances in which an employee who has access to the compensation information of other employees …
  • FAR 52.227-20 Rights in Data—SBIR Program.
    …ut permission of the Contractor, except that, subject to the foregoing use and disclosure prohibitions, these data may be disclosed for use by support Contractors. After the protection period, the Government has a paid-up license to use, an…
  • FAR 52.232-12 Advance Payments.
    …propriate at its discretion and without limiting any other rights of the Government. (l) Prohibition against assignment. Notwithstanding any other terms of this contract, the Contractor shall not assign this contract, any interest therein,…
  • DFARS 203.905 Procedures for investigating complaints.
    …makes a determination that the complaint is frivolous, fails to allege a violation of the prohibition in 203.903, or has been previously addressed in another Federal or State judicial or administrative proceeding initiated by the complainan…
  • DFARS 209.104-1 General standards.
    …. (C) In accordance with 10 U.S.C. 4874(b)(1)(A), the Secretary of Defense may waive the prohibition in paragraph (g)(ii)(A) of this section upon determining that the waiver is essential to the national security interests of the United Sta…
  • FAR 16.505 Ordering.
    …closure of information contained in the Freedom of Information Act (5 U.S.C. 552) and the prohibitions against disclosure in 24.202 in determining whether other data should be removed. Although the submitter notice process set out in Execut…
  • FAR 22.1703 Policy.
    …ork document shall include, but is not limited to, details about work description, wages, prohibition on charging recruitment fees, work location(s), living accommodations and associated costs, time off, roundtrip transportation arrangement…
  • FAR 22.1704 Violations and remedies.
    …Inspector General report of an investigation of a violation of the trafficking in persons prohibitions in 22.1703(a) and 52.222-50(b). (2)(i) Upon receipt of a report from the agency Inspector General that provides support for the allegati…
  • FAR 26.504 Policy.
    …e, and specifying the actions that will be taken against employees for violations of such prohibition; (2) Establishing an ongoing drug-free awareness program to inform its employees about— (i) The dangers of drug abuse in the workplace; …
  • FAR 27.404-5 Unauthorized, omitted, or incorrect markings.
    …gs will be cancelled or ignored and the data will no longer be made subject to disclosure prohibitions, unless the contractor files suit within 90 days in a court of competent jurisdiction. The markings will not be cancelled or ignored unti…
  • FAR 27.405-4 Other existing data.
    …r than limited rights data) to be delivered and the data are available without disclosure prohibitions, unless reproduction rights to the data are to be obtained. (b) If the reproduction rights to the data are to be obtained in any contrac…
  • FAR 32.304-8 Other borrowing.
    …he financing institution or other sources. It has been recognized in practice that, while prohibition of borrowings outside the guaranteed loan is preferable when practicable in a given V-loan case, such other borrowings should be permitted…
  • FAR 42.1503 Procedures.
    …1704(d)(1), that substantiates an allegation of a violation of the trafficking in persons prohibitions in 22.1703(a) and 52.222-50(b); or (vi) Determines that a contractor has a history of three or more unjustified reduced or untimely paym…
  • FAR 52.222-50 Combating Trafficking in Persons.
    …ork document shall include, but is not limited to, details about work description, wages, prohibition on charging recruitment fees, work location(s), living accommodations and associated costs, time off, roundtrip transportation arrangement…
  • FAR 52.226-7 Drug-Free Workplace.
    …ce and specifying the actions that will be taken against employees for violations of such prohibition; (2) Establish an ongoing drug-free awareness program to inform such employees about— (i) The dangers of drug abuse in the workplace; (…
  • FAR 52.230-6 Administration of Cost Accounting Standards.
    …not detrimental to the Government and is, therefore, not subject to the no increased cost prohibition provisions of CAS-covered contracts and subcontracts affected by the change. Fixed-price contracts and subcontracts means— (1) Fixed-pri…
  • DFARS 204.2104 Waivers.
    The Secretary of Defense may waive the prohibition in 204.2102(a) on a case-by-case basis for a single, one-year period, if the Secretary— (a) Determines such waiver to be in the national security interests of the United States; and (b) C…
  • DFARS 209.570-3 Procedures.
    …ormation regarding the prospective contractor's direct financial interests in view of the prohibition at 209.570-2(a); and (3) Follow the procedures at PGI 209.570-3. (b) A determination to use a contractor to perform lead system integrat…
  • DFARS 216.405-2 Cost-plus-award-fee contracts.
    …nts resulting from the evaluation at the end of an award-fee period are prohibited. (This prohibition does not apply to base-fee payments.) The fee-determining official's rating for award-fee evaluations will be provided to the contractor w…
  • DFARS 237.173-4 Waiver.
    The Secretary of Defense may waive the prohibition in 237.173-3(a) for a period of 60 days, if the Secretary determines such a waiver is vital to the national security interests of the United States. The Secretary may renew a waiver issued …
  • DFARS 237.270 Acquisition of audit services.
    …rting requirements mandated by law or DoD regulation. (2) See 215.101-2-70(b)(3) for the prohibition on the use of the lowest price technically acceptable source selection process when acquiring audit services. (3) See PGI 237.270 for a l…
  • DFARS 252.227-7013 Rights in Technical Data—Other Than Commercial Products and Commercial Services.
    …ional or informational purposes; (2) The recipient of the technical data is subject to a prohibition on the further reproduction, release, disclosure, or use of the technical data; and (3) The contractor or subcontractor asserting the res…

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.