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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125 sections with “authorized in writing”: the first 40
- FAR 27.404-5 Unauthorized, omitted, or incorrect markings.(a) Unauthorized marking of data. (1) The Government has, in accordance with paragraph (e) of the clause at 52.227-14, the right to either return data containing unauthorized markings or to cancel or ignore the markings. (2) Agencies shall…
- FAR 2.101 Definitions.…ted data following the procedures in 10 CFR 1045.21; and (2) Must be protected against unauthorized disclosure according to Executive Order 12958, Classified National Security Information, April 17, 1995, or classified in accordance with t…
- DFARS 202.101 Definitions.Authorized aftermarket manufacturer means an organization that fabricates an electronic part under a contract with, or with the express written authority of, the original component manufacturer based on the original component manufacturer's…
- DFARS 252.225-7040 Contractor Personnel Supporting U.S. Armed Forces Deployed Outside the United States.…or specified combatant command established in accordance with 10 U.S.C. 161. Contractors authorized to accompany the Force, or CAAF, means contractor personnel, including all tiers of subcontractor personnel, who are authorized to accompan…
- FAR 52.227-14 Rights in Data—General.…ction, in accordance with paragraphs (e) and (f) of this clause; and (iv) Protect from unauthorized disclosure and use those data that are limited rights data or restricted computer software to the extent provided in paragraph (g) of this …
- FAR 52.227-20 Rights in Data—SBIR Program.…notices on all reproductions of the data. (d) Rights to SBIR data. (1) The Contractor is authorized to affix the following “SBIR Rights Notice” to SBIR data delivered under this contract and the Government will treat the data, subject to t…
- DFARS 252.204-7012 Safeguarding Covered Defense Information and Cyber Incident Reporting.…easures that are commensurate with the consequences and probability of loss, misuse, or unauthorized access to, or modification of information. Compromise means disclosure of information to unauthorized persons, or a violation of the secur…
- DFARS 252.227-7013 Rights in Technical Data—Other Than Commercial Products and Commercial Services.…e, modification, reproduction, performance, display, or release or disclosure to a person authorized to receive limited rights technical data; or (B) A foreign government, of technical data other than detailed manufacturing or process data…
- DFARS 252.227-7014 Rights in Other Than Commercial Computer Software and Other Than Commercial Computer Software Documentation.…ired for the purposes of safekeeping (archive), backup, modification, or other activities authorized in paragraphs (1), (2), and (4) through (7) of this definition; (4) Modify computer software provided that the Government may— (i) Use th…
- DFARS 252.227-7018 Rights in Other Than Commercial Technical Data and Computer Software—Small Business Innovation Research Program and Small Business Technology Transfer Program.…e, modification, reproduction, performance, display, or release or disclosure to a person authorized to receive limited rights technical data; or (B) A foreign government, of technical data other than detailed manufacturing or process data…
- DFARS 252.239-7010 Cloud Computing Services.…as-a-service, and platform-as-a-service. Compromise means disclosure of information to unauthorized persons, or a violation of the security policy of a system, in which unauthorized intentional or unintentional disclosure, modification, de…
- FAR 3.104-4 Disclosure, protection, and marking of contractor bid or proposal information and source selection information.…or proposal information or source selection information to any person other than a person authorized, in accordance with applicable agency regulations or procedures, by the agency head or the contracting officer to receive such information.…
- FAR 52.215-1 Instructions to Offerors—Competitive Acquisition.…s, and telephone and facsimile numbers (and electronic addresses if available) of persons authorized to negotiate on the offeror's behalf with the Government in connection with this solicitation; and (v) Name, title, and signature of perso…
- DFARS 246.471 Authorizing shipment of supplies.… all examinations and tests required by the contract; 2. Were shipped in accordance with authorized shipping instructions; 3. Conform to the quality, identity, and condition called for by the contract; and 4. Are of the quantity shown on…
- DFARS 252.201-7000 Contracting officer's representative.…ce with subsection 201.602-2 of the Defense Federal Acquisition Regulation Supplement and authorized in writing by the contracting officer to perform specific technical or administrative functions. (b) If the Contracting Officer designates…
- DFARS 252.204-7009 Limitations on the Use or Disclosure of Third-Party Contractor Reported Cyber Incident Information.…(a) Definitions. As used in this clause— Compromise means disclosure of information to unauthorized persons, or a violation of the security policy of a system, in which unauthorized intentional or unintentional disclosure, modification, de…
- FAR 51.203 Means of obtaining service.(a) Authorized contractors shall submit requests for interagency fleet management system (IFMS) vehicles and related services in writing to the appropriate GSA regional Federal Supply Service Bureau, Attention: Regional fleet manager, excep…
- FAR 52.219-9 Small Business Subcontracting Plan.…submitting one SSR in eSRS for all contracts covered by its commercial plan. A Contractor authorized to use a commercial subcontracting plan shall include in its subcontracting goals and in its SSR all indirect costs, with the exception of …
- DFARS 252.204-7008 Compliance with safeguarding covered defense information controls.…g/10.6028/NIST.SP.800-171)that are in effect at the time the solicitation is issued or as authorized by the contracting officer, not later than December 31, 2017. (2)(i) If the Offeror proposes to vary from any of the security requirements…
- DFARS 252.251-7001 Use of Interagency Fleet Management System (IFMS) vehicles and related services.…Management System (IFMS) Vehicles and Related Services (DEC 1991) (a) The Contractor, if authorized use of IFMS vehicles, shall submit requests for five or fewer vehicles and related services in writing to the appropriate General Services …
- FAR 14.404-1 Cancellation of invitations after opening.…ecified in subparagraphs (c) (6), (7), or (8) of this subsection, and the agency head has authorized, in the determination in paragraph (c) of this subsection, the completion of the acquisition through negotiation, the contracting officer s…
- FAR 14.404-2 Rejection of individual bids.…does not conform to the applicable specifications shall be rejected unless the invitation authorized the submission of alternate bids and the supplies offered as alternates meet the requirements specified in the invitation. (c) Any bid tha…
- FAR 16.505 Ordering.…rea, in which the services are to be performed. (10)(i) No protest under subpart 33.1 is authorized in connection with the issuance or proposed issuance of an order under a task-order contract or delivery-order contract, except— (A) A pro…
- FAR 22.406-8 Investigations.…atements taken during an investigation or the employee's identity to anyone other than an authorized Government official without that employee's prior signed consent. (3) Send a written request to the Administrator, Wage and Hour Division,…
- FAR 46.407 Nonconforming supplies or services.…und to be in the Government's interest, such supplies or services may be accepted only as authorized in this section. (b) The contracting officer ordinarily must give the contractor an opportunity to correct or replace nonconforming suppli…
- FAR 52.203-2 Certificate of Independent Price Determination.… in any action contrary to subparagraphs (a)(1) through (a)(3) above; or (2)(i) Has been authorized, in writing, to act as agent for the following principals in certifying that those principals have not participated, and will not participa…
- FAR 52.212-4 Contract Terms and Conditions—Commercial Products and Commercial Services.…e Contractor shall submit an original invoice and three copies (or electronic invoice, if authorized) to the address designated in the contract to receive invoices. An invoice must include— (i) Name and address of the Contractor; (ii) Inv…
- FAR 52.216-7 Allowable Cost and Payment.…the date of this contract and the terms of this contract. The Contractor may submit to an authorized representative of the Contracting Officer, in such form and reasonable detail as the representative may require, an invoice or voucher supp…
- FAR 52.222-50 Combating Trafficking in Persons.… individual, including a director, an officer, an employee, or an independent contractor, authorized to act on behalf of the organization. Coercion means— (1) Threats of serious harm to or physical restraint against any person; (2) Any s…
- FAR 52.227-13 Patent Rights—Ownership by the Government.…h (e)(2) of this clause, or not later than 8 months thereafter, unless a longer period is authorized in writing by the Contracting Officer for good cause shown in writing by the Contractor. Each determination of greater rights under this co…
- FAR 52.232-7 Payments under Time-and-Materials and Labor-Hour Contracts.…tor as follows upon the submission of vouchers approved by the Contracting Officer or the authorized representative: (a) Hourly rate. (1) Hourly rate means the rate(s) prescribed in the contract for payment for labor that meets the labor c…
- FAR 52.245-1 Government Property.…rty means all tangible property, both real and personal. Property Administrator means an authorized representative of the Contracting Officer appointed in accordance with agency procedures, responsible for administering the contract requir…
- FAR 52.247-64 Preference for Privately Owned U.S.-Flag Commercial Vessels.…rement in paragraph (a) does not apply to— (1) Cargoes carried in vessels as required or authorized by law or treaty; (2) Ocean transportation between foreign countries of supplies purchased with foreign currencies made available, or deri…
- FAR 52.249-2 Termination for Convenience of the Government (Fixed-Price).…ernment has or may acquire an interest. (9) Use its best efforts to sell, as directed or authorized by the Contracting Officer, any property of the types referred to in subparagraph (b)(6) of this clause; provided, however, that the Contra…
- FAR 52.249-3 Termination for Convenience of the Government (Dismantling, Demolition, or Removal of Improvements).…ernment has or may acquire an interest. (9) Use its best efforts to sell, as directed or authorized by the Contracting Officer, any property of the types referred to in subparagraph (b)(6) of this clause; provided, however, that the Contra…
- FAR 52.249-6 Termination (Cost-Reimbursement).…ernment has or may acquire an interest. (9) Use its best efforts to sell, as directed or authorized by the Contracting Officer, any property of the types referred to in subparagraph (c)(6) of this clause; provided, however, that the Contra…
- DFARS 225.7703-2 Determination requirements.… paragraph (b)(1) of this section as follows: (i) The head of the contacting activity is authorized to make a determination that applies to an individual acquisition with a value of less than $150 million. (ii) The Principal Director, Def…
- DFARS 227.7103-7 Use and nondisclosure agreement.…osure of the data. (1) The specific conditions under which an intended recipient will be authorized to use, modify, reproduce, release, perform, display, or disclose technical data subject to limited rights or SBIR/STTR data rights, or com…
- DFARS 239.7304 Determination and notification.The individuals authorized in 239.7303 may exercise the authority provided in 239.7305 only after— (a) Obtaining a joint recommendation by the Under Secretary of Defense for Acquisition and Sustainment and the Chief Information Officer of …
- DFARS 245.302 Contracts with foreign governments or international organizations.… For a direct commercial sale, the foreign country or international organization would be authorized to contract with the department concerned under the Arms Export Control Act. (ii) Use charges. (A) The Use and Charges clause is applicab…
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.