FAR and DFARS › FAR Part 6: Competition Requirements › Subpart 6.3

FAR 6.302-1 Only one responsible source and no other supplies or services will satisfy agency requirements.

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.

In plain English

This section lets an agency award a contract without full and open competition when only one responsible source (or, for DoD, NASA, and the Coast Guard, a limited number of sources) can provide the required supplies or services and no other type will satisfy the agency's needs. It matters to contractors because it explains when a sole-source award may be allowed, including follow-on work, unsolicited research proposals, and brand-name descriptions. Any contract awarded under this authority must be supported by written justification and approval, and required notices must have been published.

Applies to: Agencies awarding contracts without full and open competition based on only one responsible source

What it requires

  • Support contracts awarded using this authority with the written justifications and approvals described in 6.303 and 6.304.
  • Ensure the notices required by 5.201 have been published and any bids, proposals, quotations, or capability statements have been considered.
  • For brand-name descriptions, justify and approve in accordance with 6.303 and 6.304, and post the justification with the solicitation.

Key terms: only one responsible source · full and open competition · unsolicited research proposal · follow-on contract · brand-name description

Written by AI from this section's text. A guide, not legal advice: the text below rules.

The text

(a) Authority. (1) Citations: 10 U.S.C. 3204(a)(1) or 41 U.S.C. 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 supplies or services will satisfy agency requirements, full and open competition need not be provided for.

(i) Supplies or services may be considered to be available from only one source if the source has submitted an unsolicited research proposal that:

(A) Demonstrates a unique and innovative concept (see definition at 2.101), or, demonstrates a unique capability of the source to provide the particular research services proposed;

(B) Offers a concept or services not otherwise available to the Government; and

(C) Does not resemble the substance of a pending competitive acquisition. (See 10 U.S.C. 3204(b)(A)and 41 U.S.C. 3304(b)(1).)

(ii) Supplies may be deemed to be available only from the original source in the case of a follow-on contract for the continued development or production of a major system or highly specialized equipment, including major components thereof, when it is likely that award to any other source would result in—

(A) Substantial duplication of cost to the Government that is not expected to be recovered through competition; or

(B) Unacceptable delays in fulfilling the agency's requirements. (See 10 U.S.C. 3204(b)(B)or 41 U.S.C. 3304(b)(2).)

(iii) For DoD, NASA, and the Coast Guard, services may be deemed to be available only from the original source in the case of follow-on contracts for the continued provision of highly specialized services when it is likely that award to any other source would result in—

(A) Substantial duplication of cost to the Government that is not expected to be recovered through competition; or

(B) Unacceptable delays in fulfilling the agency's requirements. (See 10 U.S.C. 3204(b)(B).)

(b) Application. This authority shall be used, if appropriate, in preference to the authority in 6.302-7; it shall not be used when any of the other circumstances is applicable. Use of this authority may be appropriate in situations such as the following (these examples are not intended to be all-inclusive and do not constitute authority in and of themselves):

(1) When there is a reasonable basis to conclude that the agency's minimum needs can only be satisfied by—

(i) Unique supplies or services available from only one source or only one supplier with unique capabilities; or

(ii) For DoD, NASA, and the Coast Guard, unique supplies or services available from only one or a limited number of sources or from only one or a limited number of suppliers with unique capabilities.

(2) The existence of limited rights in data, patent rights, copyrights, or secret processes; the control of basic raw material; or similar circumstances, make the supplies and services available from only one source (however, the mere existence of such rights or circumstances does not in and of itself justify the use of these authorities) (see part 27).

(3) When acquiring utility services (see 41.101), circumstances may dictate that only one supplier can furnish the service (see 41.202); or when the contemplated contract is for construction of a part of a utility system and the utility company itself is the only source available to work on the system.

(4) When the agency head has determined in accordance with the agency's standardization program that only specified makes and models of technical equipment and parts will satisfy the agency's needs for additional units or replacement items, and only one source is available.

(c) Application for brand-name descriptions. (1) An acquisition or portion of an acquisition that uses a brand-name description or other purchase description to specify a particular brand-name, product, or feature of a product, peculiar to one manufacturer—

(i) Does not provide for full and open competition, regardless of the number of sources solicited; and

(ii) Shall be justified and approved in accordance with 6.303 and 6.304.

(A) If only a portion of the acquisition is for a brand-name product or item peculiar to one manufacturer, the justification and approval is to cover only the portion of the acquisition which is brand-name or peculiar to one manufacturer. The justification should state it is covering only the portion of the acquisition which is brand-name or peculiar to one manufacturer, and the approval level requirements will then only apply to that portion;

(B) The justification should indicate that the use of such descriptions in the acquisition or portion of an acquisition is essential to the Government's requirements, thereby precluding consideration of a product manufactured by another company; and

(C) The justification shall be posted with the solicitation (see 5.102(a)(6)).

(2) Brand-name or equal descriptions, and other purchase descriptions that permit prospective contractors to offer products other than those specifically referenced by brand-name, provide for full and open competition and do not require justifications and approvals to support their use.

(d) Limitations. (1) Contracts awarded using this authority shall be supported by the written justifications and approvals described in 6.303 and 6.304.

(2) For contracts awarded using this authority, the notices required by 5.201 shall have been published and any bids, proposals, quotations, or capability statements must have been considered.

Sections it refers to

Sections that refer to it

  • 5.102 Availability of solicitations.
  • 5.202 Exceptions.
  • 5.207 Preparation and transmittal of synopses.
  • 6.303-2 Content.
  • 6.305 Availability of the justification.
  • 11.105 Items peculiar to one manufacturer.
  • 15.607 Criteria for acceptance and negotiation of an unsolicited proposal.
  • 16.505 Ordering.
  • 205.205-71 Only one responsible source.
  • 206.302-1 Only one responsible source and no other supplies or services will satisfy agency requirements.
  • 206.303-2 Content.
  • 206.304 Approval of the justification.
  • 208.7003-2 Assignments under coordinated acquisition.
  • 225.7702-1 Acquisition of small arms.

← 6.302 Circumstances permitting other than full and open competition. · 6.302-2 Unusual and compelling urgency. →

Rule changes for FAR Part 6

Source: eCFR, 48 CFR chapters 1 and 2 (GPO GovInfo bulk data) ↗. Plain words for the terms: glossary.

FAR 6.302-1 Only one responsible source and no other supplies or services will satisfy agency requirements · SpendQuery