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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602 sections with “at source”: the first 40
- DFARS 246.402 Government contract quality assurance at source.Do not require Government contract quality assurance at source for contracts or delivery orders valued below $400,000, unless— (1) Mandated by DoD regulation; (2) Required by a memorandum of agreement between the acquiring department or a…
- FAR 46.402 Government contract quality assurance at source.Agencies shall perform contract quality assurance, including inspection, at source if— (a) Performance at any other place would require uneconomical disassembly or destructive testing; (b) Considerable loss would result from the manufactu…
- FAR 3.104-4 Disclosure, protection, and marking of contractor bid or proposal information and source selection information.… this subsection, no person or other entity may disclose contractor bid or proposal information or source selection information to any person other than a person authorized, in accordance with applicable agency regulations or procedures, by…
- FAR 6.202 Establishing or maintaining alternative sources.…ude a particular source from a contract action in order to establish or maintain an alternative source or sources for the supplies or services being acquired if the agency head determines that to do so would— (1) Increase or maintain compe…
- FAR 6.302-1 Only one responsible source and no other supplies or services will satisfy agency requirements.(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…
- FAR 8.002 Priorities for use of mandatory Government sources.(a) Except as required by 8.003, or as otherwise provided by law, agencies shall satisfy requirements for supplies and services from or through the mandatory Government sources and publications listed below in descending order of priority: …
- FAR 8.003 Use of other mandatory sources.Agencies shall satisfy requirements for the following supplies or services from or through specified sources, as applicable: (a) Public utility services (see part 41). (b) Printing and related supplies (see subpart 8.8). (c) Leased motor…
- 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 51.102 Authorization to use Government supply sources.(a) Before issuing an authorization to a contractor to use Government supply sources in accordance with 51.101 (a) or (b), the contracting officer shall place in the contract file a written finding supporting issuance of the authorization. …
- FAR 52.208-9 Contractor Use of Mandatory Sources of Supply or Services.As prescribed in 8.005, insert the following clause: Contractor Use of Mandatory Sources of Supply or Services (MAY 2014) (a) Certain supplies or services to be provided under this contract for use by the Government are required by law to…
- DFARS 206.202 Establishing or maintaining alternative sources.…totally or partially exclude a particular source from a contract action. (b) The determination and findings (D&F) and the documentation supporting the D&F shall identify the source to be excluded from the contract action. Include the infor…
- DFARS 206.302-1 Only one responsible source and no other supplies or services will satisfy agency requirements.…(2)(i) Section 8059 of Pub. L. 101-511 and similar sections in subsequent defense appropriations acts prohibit departments and agencies from entering into contracts for studies, analyses, or consulting services (see FAR subpart 37.2) on the…
- DFARS 225.7301-2 Solicitation approval for sole source contracts.The contracting officer shall coordinate through agency channels with the Principal Director, Defense Pricing, Contracting, and Acquisition Policy, prior to issuing a solicitation for a sole source contract for U.S./FMS combined requirement…
- DFARS 236.272 Prequalification of sources.(a) Prequalification procedures may be used when necessary to ensure timely and efficient performance of critical construction projects. Prequalification— (1) Results in a list of sources determined to be qualified to perform a specific co…
- DFARS 252.217-7026 Identification of Sources of Supply.As prescribed in 217.7303, use the following provision: Identification of Sources of Supply (JAN 2023) (a) The Government is required under 10 U.S.C. 4753 to obtain certain information on the actual manufacturer or sources of supplies it …
- DFARS 252.225-7053 Representation Regarding Prohibition on Use of Certain Energy Sourced from Inside the Russian Federation.As prescribed in 225.7019-4(a), use the following provision: Representation Regarding Prohibition on Use of Certain Energy Sourced From Inside the Russian Federation (AUG 2021) (a) Definitions. As used in this provision— Covered military…
- DFARS 252.225-7054 Prohibition on Use of Certain Energy Sourced from Inside the Russian Federation.…lowing clause: Prohibition on Use of Certain Energy Sourced From Inside the Russian Federation (JAN 2023) (a) Definitions. As used in this clause— Covered military installation means a military installation in Europe identified by DoD as…
- FAR 46.504 Certificate of conformance.A certificate of conformance (see 46.315) may be used in certain instances instead of source inspection (whether the contract calls for acceptance at source or destination) at the discretion of the contracting officer if the following condi…
- FAR 52.246-15 Certificate of Conformance.As prescribed in 46.315, insert the following clause in solicitations and contracts for supplies or services when the conditions in 46.504 apply: Certificate of Conformance (APR 1984) (a) When authorized in writing by the cognizant Contra…
- DFARS 239.7405 Delegated authority for telecommunications resources.The contracting officer may enter into a telecommunications service contract on a month-to-month basis or for any longer period or series of periods, not to exceed a total of 10 years. See PGI 239.7405 for documents relating to this contrac…
- FAR 19.202-2 Locating small business sources.The contracting officer shall, to the extent practicable, encourage maximum participation by small business, veteran-owned small business, service-disabled veteran-owned small business, HUBZone small business, small disadvantaged business, …
- DFARS 208.002 Priorities for use of mandatory Government sources.(a)(1) Supplies. (i) See the guidance at PGI 208.002(a)(1)(i) to obtain information on available items in DoD's property inventories. (v) See subpart 208.70, Coordinated Acquisition, and subpart 208.74, Enterprise Software Agreements.
- 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…
- FAR 3.104-5 Disqualification.…ents or other intermediaries. Employment contacts between the employee and the offeror, that are conducted through agents, or other intermediaries, may require disqualification under 3.104-3(c)(1). These contacts may also require disqualifi…
- FAR 3.104-6 Ethics advisory opinions regarding prohibitions on a former official's acceptance of compensation from a contractor.… 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 appropriate agency ethics official before accepting such compensation. (b) The request…
- FAR 3.907-5 Access to investigative file of Inspector General.(a) The employee alleging reprisal under this section shall have access to the investigation file of the Inspector General, in accordance with the Privacy Act, 5 U.S.C. 552a. The investigation of the Inspector General shall be deemed closed…
- FAR 4.203 Taxpayer identification information.(a) If the contractor has furnished a Taxpayer Identification Number (TIN) when completing the solicitation provision at 52.204-3, Taxpayer Identification, or paragraph (l) of the solicitation provision at 52.212-3, Offeror Representations …
- FAR 5.101 Methods of disseminating information.…all Business Act (15 U.S.C. 637(e)) and 41 U.S.C. 1708, contracting officers must disseminate information on proposed contract actions as follows: (1) For proposed contract actions expected to exceed $25,000, by synopsizing in the GPE (see…
- FAR 5.102 Availability of solicitations.…a)(5) of this section, the contracting officer must make available through the GPE solicitations synopsized through the GPE, including specifications, technical data, and other pertinent information determined necessary by the contracting o…
- FAR 5.205 Special situations.… whenever market research does not produce a sufficient number of concerns to obtain adequate competition. Advance notices must not be used where security considerations prohibit such publication. Advance notices will enable potential sourc…
- FAR 5.207 Preparation and transmittal of synopses.(a) Content. Each synopsis transmitted to the GPE must address the following data elements, as applicable: (1) Action Code. (2) Date. (3) Year. (4) Contracting Office ZIP Code. (5) Product or Service Code. (6) Contracting Office Addre…
- FAR 5.406 Public disclosure of justification documents for certain contract actions.(a) Justifications and approvals for other than full and open competition must be posted in accordance with 6.305. (b) Limited-source justifications (excluding brand name) for FSS orders or blanket purchase agreements with an estimated val…
- FAR 6.302-3 Industrial mobilization; engineering, developmental, or research capability; or expert services.(a) Authority. (1) Citations: 10 U.S.C. 3204(a)(3) or 41 U.S.C. 3304(a)(3). (2) Full and open competition need not be provided for when it is necessary to award the contract to a particular source or sources in order— (i) To maintain a fa…
- FAR 6.302-4 International agreement.(a) Authority. (1) Citations: 10 U.S.C. 3204(a)(4) or 41 U.S.C. 3304(a)(4). (2) Full and open competition need not be provided for when precluded by the terms of an international agreement or a treaty between the United States and a foreig…
- FAR 6.302-5 Authorized or required by statute.(a) Authority. (1) Citations: 10 U.S.C. 3204(a)(5) or 41 U.S.C. 3304(a)(5). (2) Full and open competition need not be provided for when— (i) A statute expressly authorizes or requires that the acquisition be made through another agency or…
- FAR 6.302-6 National security.(a) Authority. (1) Citations: 10 U.S.C. 3204(a)(6) or 41 U.S.C. 3304(a)(6). (2) Full and open competition need not be provided for when the disclosure of the agency's needs would compromise the national security unless the agency is permit…
- FAR 7.401 Acquisition considerations.…acquisition most advantageous to the Government based on a case-by-case analysis of comparative costs and other factors in accordance with this subpart and agency procedures. (2) The methods of acquisition to be compared in the analysis sh…
- FAR 8.004 Use of other sources.If an agency is unable to satisfy requirements for supplies and services from the mandatory sources listed in 8.002 and 8.003, agencies are encouraged to consider satisfying requirements from or through the non-mandatory sources listed in p…
- FAR 8.405-6 Limiting sources.…in part 6. However, an ordering activity must justify its action when restricting consideration in accordance with paragraph (a) or (b) of this section— (a) Orders or BPAs exceeding the micro-purchase threshold based on a limited sources j…
- FAR 9.104-3 Application of standards.(a) Ability to obtain resources. Except to the extent that a prospective contractor has sufficient resources or proposes to perform the contract by subcontracting, the contracting officer shall require acceptable evidence of the prospective…
FAR (chapter 1)
- Part 1 Federal Acquisition Regulations System 58 sections
- Part 2 Definitions of Words and Terms 3 sections
- Part 3 Improper Business Practices and Personal Conflicts of Interest 98 sections
- Part 4 Administrative and Information Matters 116 sections
- Part 5 Publicizing Contract Actions 34 sections
- Part 6 Competition Requirements 34 sections
- Part 7 Acquisition Planning 34 sections
- Part 8 Required Sources of Supplies and Services 67 sections
- Part 9 Contractor Qualifications 106 sections
- Part 10 Market Research 4 sections
- Part 11 Describing Agency Needs 33 sections
- Part 12 Acquisition of Commercial Products and Commercial Services 38 sections
- Part 13 Simplified Acquisition Procedures 49 sections
- Part 14 Sealed Bidding 82 sections
- Part 15 Contracting by Negotiation 81 sections
- Part 16 Types of Contracts 74 sections
- Part 17 Special Contracting Methods 50 sections
- Part 18 Emergency Acquisitions 34 sections
- Part 19 Small Business Programs 126 sections
- Part 22 Application of Labor Laws to Government Acquisitions 205 sections
- Part 23 Environment, Sustainable Acquisition, and Material Safety 38 sections
- Part 24 Protection of Privacy and Freedom of Information 10 sections
- Part 25 Foreign Acquisition 81 sections
- Part 26 Other Socioeconomic Programs 36 sections
- Part 27 Patents, Data, and Copyrights 59 sections
- Part 28 Bonds and Insurance 61 sections
- Part 29 Taxes 23 sections
- Part 30 Cost Accounting Standards Administration 30 sections
- Part 31 Contract Cost Principles and Procedures 87 sections
- Part 32 Contract Financing 175 sections
- Part 33 Protests, Disputes, and Appeals 23 sections
- Part 34 Major System Acquisition 20 sections
- Part 35 Research and Development Contracting 25 sections
- Part 36 Construction and Architect-engineer Contracts 81 sections
- Part 37 Service Contracting 46 sections
- Part 38 Federal Supply Schedule Contracting 3 sections
- Part 39 Acquisition of Information Technology 14 sections
- Part 40 Information Security and Supply Chain Security 12 sections
- Part 41 Acquisition of Utility Services 17 sections
- Part 42 Contract Administration and Audit Services 84 sections
- Part 43 Contract Modifications 14 sections
- Part 44 Subcontracting Policies and Procedures 24 sections
- Part 45 Government Property 33 sections
- Part 46 Quality Assurance 60 sections
- Part 47 Transportation 106 sections
- Part 48 Value Engineering 13 sections
- Part 49 Termination of Contracts 108 sections
- Part 50 Extraordinary Contractual Actions and the Safety Act 34 sections
- Part 51 Use of Government Sources by Contractors 15 sections
- Part 52 Solicitation Provisions and Contract Clauses 680 sections
- Part 53 Forms 61 sections
DFARS (chapter 2, Defense)
- Part 201 Federal Acquisition Regulations System 24 sections
- Part 202 Definitions of Words and Terms 1 sections
- Part 203 Improper Business Practices and Personal Conflicts of Interest 28 sections
- Part 204 Administrative and Information Matters 76 sections
- Part 205 Publicizing Contract Actions 11 sections
- Part 206 Competition Requirements 20 sections
- Part 207 Acquisition Planning 22 sections
- Part 208 Required Sources of Supplies and Services 31 sections
- Part 209 Contractor Qualifications 55 sections
- Part 210 Market Research 2 sections
- Part 211 Describing Agency Needs 22 sections
- Part 212 Acquisition of Commercial Products and Commercial Services 24 sections
- Part 213 Simplified Acquisition Procedures 23 sections
- Part 214 Sealed Bidding 14 sections
- Part 215 Contracting by Negotiation 66 sections
- Part 216 Types of Contracts 36 sections
- Part 217 Special Contracting Methods 64 sections
- Part 218 Emergency Acquisitions 7 sections
- Part 219 Small Business Programs 47 sections
- Part 222 Application of Labor Laws to Government Acquisitions 56 sections
- Part 223 Environment, Sustainable Acquisition, and Material Safety 34 sections
- Part 224 Protection of Privacy and Freedom of Information 2 sections
- Part 225 Foreign Acquisition 251 sections
- Part 226 Other Socioeconomic Programs 14 sections
- Part 227 Patents, Data, and Copyrights 99 sections
- Part 228 Bonds and Insurance 17 sections
- Part 229 Taxes 9 sections
- Part 230 Cost Accounting Standards Administration 2 sections
- Part 231 Contract Cost Principles and Procedures 13 sections
- Part 232 Contract Financing 74 sections
- Part 233 Protests, Disputes, and Appeals 8 sections
- Part 234 Major System Acquisition 13 sections
- Part 235 Research and Development Contracting 16 sections
- Part 236 Construction and Architect-engineer Contracts 25 sections
- Part 237 Service Contracting 67 sections
- Part 239 Acquisition of Information Technology 38 sections
- Part 241 Acquisition of Utility Services 8 sections
- Part 242 Contract Administration and Audit Services 40 sections
- Part 243 Contract Modifications 18 sections
- Part 244 Subcontracting Policies and Procedures 13 sections
- Part 245 Government Property 23 sections
- Part 246 Quality Assurance 39 sections
- Part 247 Transportation 27 sections
- Part 249 Termination of Contracts 14 sections
- Part 250 Extraordinary Contractual Actions and the Safety Act 16 sections
- Part 251 Use of Government Sources by Contractors 5 sections
- Part 252 Solicitation Provisions and Contract Clauses 405 sections
- Part 253 Forms 10 sections
- Part 270 Defense Contracting Programs 7 sections
Source: eCFR, 48 CFR chapters 1 and 2 (GPO GovInfo bulk data) ↗. Rule changes in progress: FAR, DFARS. Terms: glossary.