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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14 sections with “proprietary specifications”
- DFARS 211.170 Use of proprietary specifications or standards.A justification and approval is required to use proprietary specifications and standards— (1) When using sealed bidding or negotiated acquisition procedures (see 206.302-1(S-70) for justification requirements); or (2) When using the simpl…
- DFARS 252.204-7012 Safeguarding Covered Defense Information and Cyber Incident Reporting.…copying of information to unauthorized media may have occurred. Contractor attributional/proprietary information means information that identifies the contractor(s), whether directly or indirectly, by the grouping of information that can b…
- FAR 8.405-6 Limiting sources.…ard. (iii) Contracting officers shall carefully screen all justifications for contractor proprietary data and remove all such data, and such references and citations as are necessary to protect the proprietary data, before making the justi…
- FAR 16.505 Ordering.…order. (4) Contracting officers shall carefully screen all justifications for contractor proprietary data and remove all such data, and such references and citations as are necessary to protect the proprietary data, before making the justi…
- DFARS 206.302-1 Only one responsible source and no other supplies or services will satisfy agency requirements.…out providing for full and open competition under this authority. (S-70) Application for proprietary specifications or standards. In accordance with section 888(a) of the National Defense Authorization Act for Fiscal Year 2017 (Pub. L. 114…
- DFARS 213.501 Special documentation requirements.…ddressed in FAR 13.501(a) is required in order to use brand name or equal descriptions or proprietary specifications and standards.
- FAR 9.508 Examples.… in communications. The agency intends to ask that firms doing research in the field make proprietary information available to Company A. The contract must require Company A to— (1) Enter into agreements with these firms to protect any pro…
- FAR 17.802 Policy.…tions shall provide for the transition of data in commercially available, or open and non-proprietary format and for permanent records, in accordance with disposition guidance issued by the National Archives and Records Administration. (d)…
- DFARS 225.7304 FMS customer involvement.…o the FMS customer any data, including certified cost or pricing data, that is contractor proprietary unless the contractor authorizes its release. (d) Except as provided in paragraph (e)(3) of this section, the degree of FMS customer part…
- FAR 2.101 Definitions.…estrictions on access and disclosure, including means for protecting personal privacy and proprietary information; and (3) Availability, which means ensuring timely and reliable access to, and use of, information. Information technology m…
- FAR 3.104-1 Definitions.…to procurements subject to that section. (2) Indirect costs and direct labor rates. (3) Proprietary information about manufacturing processes, operations, or techniques marked by the contractor in accordance with applicable law or regulat…
- FAR 5.202 Exceptions.… the originality of thought or innovativeness of the proposed research, or would disclose proprietary information associated with the proposal. This exception does not apply if the proposed contract action results from an unsolicited resear…
- FAR 33.104 Protests to GAO.… the disclosure by the party of procurement sensitive information, trade secrets or other proprietary or confidential research, development or commercial information that is contained in such document. Protective orders do not authorize wit…
- DFARS 204.7301 Definitions.…use, or unauthorized access to, or modification of information. Contractor attributional/proprietary information means information that identifies the contractor(s), whether directly or indirectly, by the grouping of information that can b…
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.