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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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149 sections with “sole source”: the first 40

  • FAR 19.814 Requesting a formal size determination (8(a) sole source requirements).
    (a) If the size status of an 8(a) participant nominated for award of an 8(a) sole source contract is called into question, a request for a formal size determination may be submitted to SBA pursuant to 13 CFR 121.1001(b)(2)(ii) by— (1) The …
  • FAR 18.115 HUBZone sole source awards.
    …warded to Historically Underutilized Business Zone (HUBZone) small business concerns on a sole source basis. (See 19.1306.)
  • FAR 18.116 Service-disabled Veteran-owned Small Business (SDVOSB) sole source awards.
    …led Veteran-owned Small Business (SDVOSB) concerns eligible under the SDVOSB Program on a sole source basis. (See 19.1406.)
  • FAR 19.808-1 Sole source.
    (a) The SBA may not accept for negotiation a sole-source 8(a) contract that exceeds $30 million unless the requesting agency has completed a justification in accordance with the requirements of 6.303. (b) The SBA is responsible for initiat…
  • DFARS 225.7301-2 Solicitation approval for sole source contracts.
    …fense Pricing, Contracting, and Acquisition Policy, prior to issuing a solicitation for a sole source contract for U.S./FMS combined requirements for a major system that has an estimated contract value that exceeds $500 million. See also 20…
  • DFARS 219.808-1 Sole source.
    For sole-source requirements processed under the PA, follow the procedures at PGI 219.808-1. (a) In lieu of the threshold at FAR 19.808-1(a), the SBA may not accept for negotiation a DoD sole-source 8(a) contract exceeding $100 million unl…
  • FAR 19.811-1 Sole source.
    (a) The contract to be awarded by the agency to the SBA shall be prepared in accordance with agency procedures and in the same detail as would be required in a contract with a business concern. The contracting officer shall use the Standard…
  • FAR 19.1406 Sole-source awards.
    (a) A contracting officer shall consider a contract award to a SDVOSB concern on a sole source basis (see 6.302-5(b)(6)), before considering small business set-asides (see 19.203 and subpart 19.5) provided none of the exclusions of 19.1404 …
  • FAR 19.1506 Women-Owned Small Business Program sole-source awards.
    (a) A contracting officer shall consider a contract award to an EDWOSB concern on a sole-source basis (see 6.302-5(b)(7)) before considering small business set-asides (see 19.203 and subpart 19.5) provided none of the exclusions at 19.1504 …
  • FAR 52.219-27 Notice of Set-Aside for, or Sole-Source Award to, Service-Disabled Veteran-Owned Small Business (SDVOSB) Concerns Eligible Under the SDVOSB Program.
    As prescribed in 19.1408, insert the following clause: Notice of Set-Aside for, or Sole-Source Award to, Service-Disabled Veteran-Owned Small Business (SDVOSB) Concerns Eligible Under the SDVOSB Program (FEB 2024) (a) Definition. Service-…
  • FAR 52.219-29 Notice of Set-Aside for, or Sole-Source Award to, Economically Disadvantaged Women-Owned Small Business Concerns.
    As prescribed in 19.1508(a), insert the following clause: Notice of Set-Aside for, or Sole-Source Award to, Economically Disadvantaged Women-Owned Small Business Concerns (OCT 2022) (a) Definition—Economically disadvantaged women-owned sm…
  • FAR 52.219-30 Notice of Set-Aside for, or Sole-Source Award to, Women-Owned Small Business Concerns Eligible Under the Women-Owned Small Business Program.
    As prescribed in 19.1508(b), insert the following clause: Notice of Set-Aside for, or Sole-Source Award to, Women-Owned Small Business Concerns Eligible Under the Women-Owned Small Business Program (OCT 2022) (a) Definition—Women-owned sm…
  • FAR 19.1306 HUBZone sole-source awards.
    …tracting officer shall consider a contract award to a HUBZone small business concern on a sole-source basis (see 6.302-5(b)(5)) before considering a small business set-aside (see 19.203 and subpart 19.5), provided none of the exclusions at …
  • FAR 52.219-3 Notice of HUBZone Set-Aside or Sole-Source Award.
    As prescribed in 19.1309(a), insert the following clause: Notice of HUBZone Set-Aside or Sole-Source Award (OCT 2022) (a) Definition. “HUBZone small business concern,” as used in this clause, means a small business concern, certified by t…
  • FAR 2.101 Definitions.
    … These projections may include rates for such things as labor, indirect costs, material obsolescence and usage, spare parts provisioning, and material handling. Forward pricing rate recommendation means a rate set unilaterally by the admin…
  • FAR 6.302-5 Authorized or required by statute.
    ….7). (3) Government Printing and Binding—44 U.S.C. 501-504, 1121 (see subpart 8.8). (4) Sole source awards under the 8(a) Program (15 U.S.C. 637), but see 6.303 for requirements for justification and approval of sole-source 8(a) awards ov…
  • FAR 19.804-3 SBA acceptance.
    …nation to the SBA Office of Hearings and Appeals under subpart C of 13 CFR part 134. (c) Sole source 8(a) awards. If an appropriate match exists, SBA will advise the contracting officer whether it will participate in contract negotiations …
  • FAR 13.501 Special documentation requirements.
    (a) Sole source (including brand name) acquisitions. (1) Acquisitions conducted under simplified acquisition procedures are exempt from the requirements in part 6. However, contracting officers must— (i) Conduct sole source acquisitions, a…
  • DFARS 215.408 Solicitation provisions and contract clauses.
    …t 12 procedures for the acquisition of commercial products and commercial services, for a sole source acquisition from the Canadian Commercial Corporation that is— (i) Cost-reimbursement, if the contract value is expected to exceed $700,00…
  • FAR 6.303-1 Requirements.
    (a) A contracting officer shall not commence negotiations for a sole source contract, commence negotiations for a contract resulting from an unsolicited proposal, or award any other contract without providing for full and open competition u…
  • FAR 19.307 Protesting a firm's status as a service-disabled veteran-owned small business concern.
    … used in this section, has the meaning given in 13 CFR 134.1002(b). (b) General. (1) For sole source acquisitions, the contracting officer, the Department of Veterans Affairs (VA), or SBA may protest the apparently successful offeror's ser…
  • FAR 19.308 Protesting a firm's status as an economically disadvantaged women-owned small business concern or women-owned small business concern eligible under the Women-Owned Small Business Program.
    …sted party, as used in this section, has the meaning given in 13 CFR 127.102. (b)(1) For sole source acquisitions, the contracting officer or SBA may protest the offeror's status as an economically disadvantaged women-owned small business …
  • FAR 22.1003-4 Administrative limitations, variations, tolerances, and exemptions.
    …obtained from the manufacturer or supplier of the equipment under a contract awarded on a sole source basis. (v) Transportation by common carrier of persons by air, motor vehicle, rail, or marine vessel on regularly scheduled routes or via…
  • FAR 5.207 Preparation and transmittal of synopses.
    …tatement of the reason justifying the lack of competition. (16)(i) Except when using the sole source authority at 6.302-1, insert a statement that all responsible sources may submit a bid, proposal, or quotation which shall be considered b…
  • FAR 8.405-6 Limiting sources.
    …ordering procedures. The original order or BPA must not have been previously issued under sole-source or limited-sources procedures. (ii) See 8.405-6(c) for the content of the justification for an order or BPA exceeding the simplified acqu…
  • FAR 9.104-3 Application of standards.
    …ontracting may be considered nonresponsible (see 52.219-3, Notice of HUBZone Set-Aside or Sole-Source Award; 52.219-4, Notice of Price Evaluation Preference for HUBZone Small Business Concerns; 52.219-14, Limitations on Subcontracting; 52.2…
  • FAR 13.106-1 Soliciting competition.
    …is section shall not apply to solicitations for multiple-award contracts that provide for sole source orders pursuant to section 8(a) of the Small Business Act (15 U.S.C. 637(a)). (v) Except for DoD, contracting officers shall ensure the c…
  • FAR 15.002 Types of negotiated acquisition.
    (a) Sole source acquisitions. When contracting in a sole source environment, the request for proposals (RFP) should be tailored to remove unnecessary information and requirements; e.g., evaluation criteria and voluminous proposal preparatio…
  • FAR 15.203 Requests for proposals.
    …e the complete, original signed proposal at a later date. (e) Letter RFPs may be used in sole source acquisitions and other appropriate circumstances. Use of a letter RFP does not relieve the contracting officer from complying with other F…
  • FAR 15.407-1 Defective certified cost or pricing data.
    …ffected by any of the following circumstances: (i) The contractor or subcontractor was a sole source supplier or otherwise was in a superior bargaining position; (ii) The contracting officer should have known that the certified cost or pr…
  • FAR 19.800 General.
    …racts may be awarded to the SBA for performance by eligible 8(a) participants on either a sole source or competitive basis. (c) Acting under the authority of the program, the SBA certifies to an agency that SBA is competent and responsible…
  • FAR 19.804-2 Agency offering.
    …quirement with a contract value over the applicable competitive threshold be awarded as a sole source contract (see 19.805-1(b)). (16) Any other pertinent and reasonably available data. (b)(1) An agency offering a construction requirement…
  • FAR 19.805-1 General.
    …hreshold (see paragraph (a)(2) of this section), the SBA may accept the requirement for a sole source 8(a) award if— (1) There is not a reasonable expectation that at least two eligible and responsible 8(a) participants will submit offers …
  • FAR 19.806 Pricing the 8(a) contract.
    … requests audit assistance to determine the proposed price to be fair and reasonable in a sole source acquisition, the contracting activity shall furnish it to the extent it is available. (b) An 8(a) contract, sole source or competitive, m…
  • FAR 19.813 Protesting an 8(a) participant's eligibility or size status.
    (a) The eligibility of an 8(a) participant for a sole source or competitive 8(a) requirement may not be challenged by another 8(a) participant or any other party, either to SBA or any administrative forum as part of a bid or other contract …
  • FAR 19.1508 Contract clauses.
    …The contracting officer shall insert the clause at 52.219-29, Notice of Set-Aside for, or Sole-Source Award to, Economically Disadvantaged Women-owned Small Business Concerns, in solicitations and contracts for acquisitions that are set asi…
  • FAR 52.212-5 Contract Terms and Conditions Required To Implement Statutes or Executive Orders—Commercial Products and Commercial Services.
    …18) (41 U.S.C. 2313). __(14) [Reserved] __(15) 52.219-3, Notice of HUBZone Set-Aside or Sole-Source Award (OCT 2022) (15 U.S.C. 657a). __(16) 52.219-4, Notice of Price Evaluation Preference for HUBZone Small Business Concerns (OCT 2022) …
  • FAR 52.248-1 Value Engineering.
    …nly; (ii) In research and development (R&D) end items or R&D test quantities that is due solely to results of previous testing under this contract; or (iii) To the contract type only. (c) VECP preparation. As a minimum, the Contractor sh…
  • DFARS 213.7001 Procedures.
    …this part, and also eligible for the 8(a) Program, contracting officers may use— (i) For sole source purchase orders not exceeding the simplified acquisition threshold, the procedures in PGI 219.804-2(2); or (ii) For other types of acquis…
  • DFARS 217.7505 Limitations on price increases.
    …ublic Law 98-94 (10 U.S.C. 2452 note). (a) The contracting officer shall not award, on a sole source basis, a contract for any centrally managed replenishment part when the price of the part has increased by 25 percent or more over the mos…

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.