48 CFR · Federal Acquisition Regulation and Defense supplement
FAR and DFARS navigator
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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440 sections with “time of performance”: the first 40
- FAR 47.207-2 Duration of contract and time of performance.…a specific expiration date (month, day, and year) for the contract or state the length of time that the contract will remain in effect; e.g., 6 months commencing from the date of award; and (b) Include the following items as appropriate: …
- FAR 22.1009-4 All possible places of performance not identified.…ions for additional possible places of performance if asked to do so in writing. (4) The time and date by which offerors must notify the contracting officer of additional places of performance. (b) Include the information required by para…
- FAR 52.211-8 Time of Delivery.As prescribed in 11.404(a)(2), insert the following clause: Time of Delivery (JUN 1997) (a) The Government requires delivery to be made according to the following schedule: REQUIRED DELIVERY SCHEDULE [Contracting Officer insert specific…
- FAR 52.211-9 Desired and Required Time of Delivery.As prescribed in 11.404(a)(3), insert the following clause: Desired and Required Time of Delivery (JUN 1997) (a) The Government desires delivery to be made according to the following schedule: DESIRED DELIVERY SCHEDULE [Contracting Offi…
- FAR 52.246-19 Warranty of Systems and Equipment under Performance Specifications or Design Criteria.…or the Contractor ____ [Contracting Officer shall state the warranty period; e.g., at the time of delivery; within 45 days after delivery, or the specified event whose occurrence will terminate the warranty period; e.g., the number of miles…
- FAR 52.243-3 Changes—Time-and-Materials or Labor-Hours.As prescribed in 43.205(c), insert the following clause: Changes—Time-and-Materials or Labor-Hours (SEP 2000) (a) The Contracting Officer may at any time, by written order, and without notice to the sureties, if any, make changes within t…
- FAR 8.404 Use of Federal Supply Schedules.…services. (1) The ordering activity shall specify the order type (i.e., firm-fixed price, time-and-materials, or labor-hour) for the services offered on the schedule priced at hourly rates. (2) Agencies shall use fixed-price orders for the…
- FAR 15.506 Postaward debriefing of offerors.…elayed for compelling reasons beyond contract award, also should be debriefed within this time period. (3) An offeror that was notified of exclusion from the competition (see 15.505(a)), but failed to submit a timely request, is not entitl…
- FAR 16.601 Time-and-materials contracts.(a) Definitions for the purposes of Time-and-Materials Contracts. Direct materials means those materials that enter directly into the end product, or that are used or consumed directly in connection with the furnishing of the end product o…
- FAR 22.404-6 Modifications of wage determinations.…age determination for the primary site of the work in a solicitation is determined by the time of receipt of the modification by the contracting agency. Therefore, the contracting agency must annotate the modification of the project wage de…
- FAR 52.203-13 Contractor Code of Business Ethics and Conduct.…ent of the offense and the individuals responsible for the conduct. It includes providing timely and complete response to Government auditors' and investigators' request for documents and access to employees with information; (2) Does not …
- FAR 52.212-1 Instructions to Offerors—Commercial Products and Commercial Services.…gned and dated offers to the office specified in this solicitation at or before the exact time specified in this solicitation. Offers may be submitted on the SF 1449, letterhead stationery, or as otherwise specified in the solicitation. As …
- FAR 52.212-3 Offeror Representations and Certifications—Commercial Products and Commercial Services.…ize standard(s) applicable to the NAICS code(s) referenced for this solicitation), at the time this offer is submitted and are incorporated in this offer by reference (see FAR 4.1201), except for paragraphs ____. [Offeror to identify the a…
- FAR 52.215-1 Instructions to Offerors—Competitive Acquisition.…al modification is a change made to a proposal before the solicitation's closing date and time, or made in response to an amendment, or made to correct a mistake at any time before award. Proposal revision is a change to a proposal made af…
- FAR 52.222-2 Payment for Overtime Premiums.As prescribed in 22.103-5(b), insert the following clause: Payment for Overtime Premiums (JUL 1990) (a) The use of overtime is authorized under this contract if the overtime premium cost does not exceed * ___ or the overtime premium is pa…
- FAR 52.232-7 Payments under Time-and-Materials and Labor-Hour Contracts.As prescribed in 32.111(a)(7), insert the following clause: Payments Under Time-and-Materials and Labor-Hour Contracts (NOV 2021) The Government will pay the Contractor as follows upon the submission of vouchers approved by the Contractin…
- FAR 52.246-2 Inspection of Supplies—Fixed-Price.…est all supplies called for by the contract, to the extent practicable, at all places and times, including the period of manufacture, and in any event before acceptance. The Government shall perform inspections and tests in a manner that wi…
- FAR 52.246-3 Inspection of Supplies—Cost-Reimbursement.…ht to inspect and test the contract supplies, to the extent practicable at all places and times, including the period of manufacture, and in any event before acceptance. The Government may also inspect the plant or plants of the Contractor …
- FAR 52.246-6 Inspection—Time-and-Material and Labor-Hour.As prescribed in 46.306, insert the following clause: Inspection—Time-and-Material and Labor-Hour (MAY 2001) (a) Definitions. As used in this clause— Contractor's managerial personnel means any of the Contractor's directors, officers, ma…
- FAR 52.246-8 Inspection of Research and Development—Cost-Reimbursement.…and test all work called for by the contract, to the extent practicable at all places and times, including the period of performance, and in any event before acceptance. The Government may also inspect the plant or plants of the Contractor …
- FAR 52.246-17 Warranty of Supplies of a Noncomplex Nature.…the Contractor warrants that for ____ [Contracting Officer shall state specific period of time after delivery, or the specified event whose occurrence will terminate the warranty period; e.g., the number of miles or hours of use, or combina…
- FAR 52.249-2 Termination for Convenience of the Government (Fixed-Price).…a) The Government may terminate performance of work under this contract in whole or, from time to time, in part if the Contracting Officer determines that a termination is in the Government's interest. The Contracting Officer shall terminat…
- FAR 52.249-3 Termination for Convenience of the Government (Dismantling, Demolition, or Removal of Improvements).…) The Government may terminate performance of work under this contract, in whole or, from time to time, in part if the Contracting Officer determines that a termination is in the Government's interest. The Contracting Officer shall terminat…
- FAR 52.249-5 Termination for Convenience of the Government (Educational and Other Nonprofit Institutions).…a) The Government may terminate performance of work under this contract in whole or, from time to time, in part if the Contracting Officer determines that a termination is in the Government's interest. The Contracting Officer shall terminat…
- DFARS 252.215-7016 Notification to Offerors—Postaward Debriefings.… sources by DoD for the procurement (10 U.S.C. 3014). (b) Postaward debriefing. (1) Upon timely request, the Government will provide a written or oral postaward debriefing to successful or unsuccessful offerors for contract awards valued a…
- DFARS 252.217-7005 Inspection and manner of doing work.…. Coast Guard, and the Institute of Electrical and Electronic Engineers, in effect at the time of Contractor's submission of bid (or acceptance of the job order, if negotiated). (2) When Navy specifications are specified in the job order, …
- DFARS 252.227-7014 Rights in Other Than Commercial Computer Software and Other Than Commercial Computer Software Documentation.…or licensed to the public but will be available for commercial sale, lease, or license in time to satisfy the delivery requirements of this contract; or (4) Satisfies a criterion expressed in paragraph (1), (2), or (3) of this definition a…
- 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.…or licensed to the public but will be available for commercial sale, lease, or license in time to satisfy the delivery requirements of this contract; or (4) Satisfies a criterion expressed in paragraph (1), (2), or (3) of this definition a…
- DFARS 252.227-7019 Validation of Asserted Restrictions—Computer Software.…cer shall so notify the Contractor in writing. (3) The Contractor's failure to provide a timely response to a Contracting Officer's request for information or failure to provide sufficient information to enable the Contracting Officer to e…
- DFARS 252.247-7002 Revision of prices.…rease such prices in accordance with this clause. (c) Demand for negotiation. (1) At any time, subject to the limitations specified in this clause, either the Contracting Officer or the Contractor may deliver to the other a written demand …
- DFARS 252.247-7023 Transportation of Supplies by Sea.…s means supplies that are clearly identifiable for eventual use by or owned by DoD at the time of transportation by sea, or are otherwise transported by DoD, regardless of ownership or use by DoD. An item is clearly identifiable for eventua…
- FAR 5.303 Announcement of contract awards.…nless another dollar amount is specified in agency acquisition regulations) in sufficient time for the agency concerned to announce it by 5 p.m. Washington, DC, time on the day of award. Agencies shall not release information on awards befo…
- FAR 15.404-4 Profit.…t task. Determination of contract type should be closely related to the risks involved in timely, cost-effective, and efficient performance. This factor should compensate contractors proportionately for assuming greater cost risks. (B) The…
- FAR 22.1009-3 All possible places of performance identified.…o include all wage determinations. If necessary, the contracting officer shall extend the time for submission of final offers; and (2) Follow the procedures in 22.1009-4.
- FAR 52.222-49 Service Contract Labor Standards—Place of Performance Unknown.… additional places or areas of performance if asked to do so in writing by ______ (insert time and date). (b) Offerors who intend to perform in a place or area of performance for which a wage determination has not been attached or requeste…
- FAR 52.227-21 Technical Data Declaration, Revision, and Withholding of Payment—Major Systems.…f the requirements of this clause for specifically identified technical data items at any time during the period covered by this clause. (b) Technical data declaration. (1) All technical data that are subject to this clause shall be accomp…
- FAR 52.228-15 Performance and Payment Bonds—Construction.…ct price does not include the price of any options, except those options exercised at the time of contract award. (b) Amount of required bonds. Unless the resulting contract price is valued at or below the threshold specified in Federal Ac…
- FAR 52.236-21 Specifications and Drawings for Construction.…or shall keep on the work site a copy of the drawings and specifications and shall at all times give the Contracting Officer access thereto. Anything mentioned in the specifications and not shown on the drawings, or shown on the drawings an…
- FAR 52.242-14 Suspension of Work.…spend, delay, or interrupt all or any part of the work of this contract for the period of time that the Contracting Officer determines appropriate for the convenience of the Government. (b) If the performance of all or any part of the work…
- FAR 52.243-1 Changes—Fixed-Price.…gency procedures. Changes—Fixed-Price (AUG 1987) (a) The Contracting Officer may at any time, by written order, and without notice to the sureties, if any, make changes within the general scope of this contract in any one or more of the f…
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.