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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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37 sections with “only one responsible source”

  • FAR 6.302-1 Only one responsible source and no other supplies or services will satisfy agency requirements.
    … 3304(a)(1). (2) When the supplies or services required by the agency are available from only one responsible source, or, for DoD, NASA, and the Coast Guard, from only one or a limited number of responsible sources, and no other type of su…
  • DFARS 206.302-1 Only one responsible source and no other supplies or services will satisfy agency requirements.
    …of the contracting office, determines that— (i) Following thorough technical evaluation, only one source is fully qualified to perform the proposed work; (ii) The unsolicited proposal offers significant scientific or technological promise…
  • DFARS 205.205-71 Only one responsible source.
    Follow the procedures at PGI 206.302-1(d) prior to soliciting a proposal without providing for full and open competition under the authority at FAR 6.302-1.
  • FAR 2.101 Definitions.
    …characteristics or construction of a product or explains its operation. The term includes only that information needed to evaluate the acceptability of the product and excludes other information for operating or maintaining the product. De…
  • FAR 52.212-3 Offeror Representations and Certifications—Commercial Products and Commercial Services.
    …ations—Commercial Products and Commercial Services (OCT 2025) The Offeror shall complete only paragraph (b) of this provision if the Offeror has completed the annual representations and certification electronically in the System for Award …
  • FAR 52.219-9 Small Business Subcontracting Plan.
    …ractor to count the subcontract toward its goals, the ANC or Indian tribe shall designate only a portion of the total subcontract award to each Contractor. The sum of the amounts designated to various Contractors cannot exceed the total val…
  • FAR 19.1406 Sole-source awards.
    … a fair and reasonable price. (b) Effective January 1, 2024, a contracting officer shall only award a sole-source contract to a concern that— (1) Is designated in SAM as an SDVOSB concern certified by SBA; or (2) Has represented that it …
  • FAR 19.1506 Women-Owned Small Business Program sole-source awards.
    …3) The award can be made at a fair and reasonable price. (d) A contracting officer shall only award a sole-source contract to a concern that has been certified pursuant to 13 CFR 127.300 as an EDWOSB or WOSB eligible under the WOSB program…
  • DFARS 252.215-7010 Requirements for Certified Cost or Pricing Data and Data Other Than Certified Cost or Pricing Data.
    …his provision. The Contracting Officer may require additional supporting information, but only to the extent necessary to determine whether an exception should be granted and whether the price is fair and reasonable. (i) Exception for pric…
  • DFARS 252.225-7021 Trade Agreements.
    …plies to all items in the Schedule. (c) The Contractor shall deliver under this contract only U.S.-made, qualifying country, or designated country end products unless— (1) In its offer, the Contractor specified delivery of other nondesign…
  • FAR 8.405-3 Blanket purchase agreements (BPAs).
    …es in writing that— (A) The orders expected under the BPA are so integrally related that only a single source can reasonably perform the work; (B) The BPA provides only for firm-fixed priced orders for— (1) Products with unit prices esta…
  • FAR 52.222-50 Combating Trafficking in Persons.
    …ictim services, legal redress, or witness activity. For example, the contractor shall not only offer return transportation to a witness at a time when the witness is still needed to testify. This paragraph does not apply when the exemptions…
  • FAR 52.227-11 Patent Rights—Ownership by the Contractor.
    … Contractor was legally obligated to do so at contract award. The license is transferable only with the written approval of the agency, except when transferred to the successor of that part of the Contractor's business to which the inventio…
  • FAR 52.245-1 Government Property.
    …ntractor shall use Government property, either furnished or acquired under this contract, only for performing this contract, unless otherwise provided for in this contract or approved by the Contracting Officer. (2) Modifications or altera…
  • FAR 1.102-2 Performance standards.
    …at maximum efficiency is obtained, rules, regulations, and policies should be promulgated only when their benefits clearly exceed the costs of their development, implementation, administration, and enforcement. This applies to internal admi…
  • FAR 11.002 Policy.
    …ures, with due regard to the nature of the supplies or services to be acquired; and (ii) Only include restrictive provisions or conditions to the extent necessary to satisfy the needs of the agency or as authorized by law. (2) To the maxi…
  • 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).
    …submit priced offers in response to the solicitation's expressed requirement, even though only one offer is received from a responsible offeror and if— (1) Based on the offer received, the contracting officer can reasonably conclude that t…
  • FAR 15.404-1 Proposal analysis techniques.
    …essional guidance. However, they are not directive and should be considered informational only. They are available via the internet at http://www.acq.osd.mil/dpap/cpic/cp/contract_pricing_reference_guides.html. (b) Price analysis. (1) Pric…
  • FAR 17.802 Policy.
    …sued by the National Archives and Records Administration. (d) Contracting officers shall only use the services of a reverse auction service provider that— (1) Does not assert or imply that it can or will obtain a Government contract for p…
  • FAR 19.502-2 Total small business set-asides.
    …n terms of fair market prices, quality, and delivery. If the contracting officer receives only one acceptable offer from a responsible small business concern in response to a set-aside, the contracting officer should make an award to that f…
  • FAR 22.1003-4 Administrative limitations, variations, tolerances, and exemptions.
    …Service Contract Labor Standards statute other than 41 U.S.C. 6707(f). These will be made only in special circumstances where it has been determined that the limitation, variation, tolerance, or exemption is necessary and proper in the publ…
  • FAR 52.215-1 Instructions to Offerors—Competitive Acquisition.
    …r the Government's control prior to the time set for receipt of offers; or (3) It is the only proposal received. (B) However, a late modification of an otherwise successful proposal that makes its terms more favorable to the Government, w…
  • FAR 52.225-19 Contractor Personnel in a Designated Operational Area or Supporting a Diplomatic or Consular Mission Outside the United States.
    … clause, and in accordance with paragraph (i)(3) of this clause, Contractor personnel are only authorized to use deadly force in self-defense. (ii) Contractor personnel performing security functions are also authorized to use deadly force …
  • DFARS 225.7702-1 Acquisition of small arms.
    … Paragraph (a)(2) of this section does not apply when— (1) The exception at FAR 6.302-1 (only one or a limited number of responsible sources) applies, and the only responsible source or sources are not U.S. manufacturers or are not offerin…
  • FAR 5.101 Methods of disseminating information.
    …itations: (i) Contracting officers shall place paid advertisements of proposed contracts only when it is anticipated that effective competition cannot be obtained otherwise (see 5.205(d)). (ii) Contracting officers shall not place adverti…
  • FAR 9.206-1 General.
    …02(a). (c) If a qualification requirement applies, the contracting officer need consider only those offers identified as meeting the requirement or included on the applicable QPL, QML, or QBL, unless an offeror can satisfactorily demonstra…
  • FAR 15.404-3 Subcontract pricing considerations.
    … there is more than one prospective subcontractor for any given work, the contractor need only submit to the Government certified cost or pricing data for the prospective subcontractor most likely to receive the award.
  • FAR 15.405 Price negotiation.
    …pricing arrangement directly affect the profit or fee objective. Because profit or fee is only one of several interrelated variables, the contracting officer shall not agree on profit or fee without concurrent agreement on cost and type of …
  • FAR 19.704 Subcontracting plan requirements.
    …ncerns, as a percentage of total subcontract dollars. For individual subcontracting plans only, a contracting officer may require the goals referenced in paragraph (a)(1) of this section to be calculated as a percentage of total contract do…
  • FAR 25.103 Exceptions.
    …mean that there is no domestic source for the listed items, but that domestic sources can only meet 50 percent or less of total U.S. Government and nongovernment demand. (ii) Before acquisition of an article on the list, the procuring agen…
  • FAR 52.212-1 Instructions to Offerors—Commercial Products and Commercial Services.
    …or receipt of offers; or (C) If this solicitation is a request for proposals, it was the only proposal received. (ii) However, a late modification of an otherwise successful offer, that makes its terms more favorable to the Government, wi…
  • DFARS 225.7004-6 Waiver of restrictions.
    …are not available. (iii) Application of the restriction would result in the existence of only one source for the item in the national technology and industrial base. (iv) Application of the restriction is not in the national security inte…
  • DFARS 232.072-3 Cash flow forecasts.
    …ited to preaward survey situations. Reliability of cash flow forecasts can be established only by comparing a series of previous actual cash flows with the corresponding forecasts and examining the causes of any differences. (d) Cash flow …
  • DFARS 237.104 Personal services contracts.
    … select on the basis of qualifications and rates, fees, or other costs. (H) In the event only one individual responds to an advertised requirement, the contracting officer is authorized to negotiate the contract award. In this case, the in…
  • DFARS 239.7305 Exclusion and limitation on disclosure.
    …tion taken under paragraphs (a) through (d) of this section and the basis for such action only to the extent necessary to effectuate the action; (ii) Notify other Department of Defense components or other Federal agencies responsible for p…
  • DFARS 252.225-7040 Contractor Personnel Supporting U.S. Armed Forces Deployed Outside the United States.
    …agraph (j) of this clause to carry arms for personal protection, Contractor personnel are only authorized to use force for individual self-defense. (4) Unless immune from host nation jurisdiction by virtue of an international agreement or …
  • DFARS 252.246-7007 Contractor Counterfeit Electronic Part Detection and Avoidance System.
    …shall include the substance of this clause, excluding the introductory text and including only paragraphs (a) through (e), in subcontracts, including subcontracts for commercial products, for electronic parts or assemblies containing electr…

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.