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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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51 sections with “performance times”: the first 40

  • FAR 47.207-2 Duration of contract and time of performance.
    …ervice is a one-time job; e.g., a routine office relocation. (2) A time schedule for the performance of segments of a major job; e.g., an office relocation for which the work phases must be coordinated to meet other needs of the agency. (…
  • FAR 16.104 Factors in selecting contract types.
    …tiating contract pricing arrangements. It is essential that the uncertainties involved in performance and their possible impact upon costs be identified and evaluated, so that a contract type that places a reasonable degree of cost responsi…
  • FAR 17.605 Award, renewal, and extension.
    (a) Effective work performance under management and operating contracts usually involves high levels of expertise and continuity of operations and personnel. Because of program requirements and the unusual (sometimes unique) nature of the w…
  • FAR 32.503-6 Suspension or reduction of payments.
    …action only if warranted by circumstances such as overpayments or unsatisfactory contract performance. (3) In all cases, the contracting officer shall— (i) Act fairly and reasonably; (ii) Base decisions on substantial evidence; and (iii…
  • FAR 52.204-30 Federal Acquisition Supply Chain Security Act Orders—Prohibition.
    … been issued by the issuing official, Contractors shall not provide or use as part of the performance of the contract any covered article, or any products or services produced or provided by a source, if the covered article or the source is…
  • FAR 52.212-4 Contract Terms and Conditions—Commercial Products and Commercial Services.
    …ceptance. The Government may require repair or replacement of nonconforming supplies or reperformance of nonconforming services at no increase in contract price. If repair/replacement or reperformance will not correct the defects or is not …
  • FAR 52.216-7 Allowable Cost and Payment.
    …for the contract; (ii) When the Contractor is not delinquent in paying costs of contract performance in the ordinary course of business, costs incurred, but not necessarily paid, for— (A) Supplies and services purchased directly for the c…
  • FAR 52.245-1 Government Property.
    …h title is vested in the Government and which exceeds the amounts needed to complete full performance under the entire contract; (2) Any property that the Government is obligated or has the option to take over under any type of contract, e…
  • FAR 52.246-4 Inspection of Services—Fixed-Price.
    …ause, includes services performed, workmanship, and material furnished or utilized in the performance of services. (b) The Contractor shall provide and maintain an inspection system acceptable to the Government covering the services under …
  • FAR 52.246-6 Inspection—Time-and-Material and Labor-Hour.
    … performed; or (3) A separate and complete major industrial operation connected with the performance of this contract. Materials includes data when the contract does not include the Warranty of Data clause. (b) The Contractor shall provi…
  • FAR 52.246-8 Inspection of Research and Development—Cost-Reimbursement.
    …y the Contractor shall be maintained and made available to the Government during contract performance and for as long afterwards as the contract requires. (c) The Government has the right to inspect and test all work called for by the cont…
  • DFARS 252.225-7040 Contractor Personnel Supporting U.S. Armed Forces Deployed Outside the United States.
    …ountry national employees not normally residing within the operational area whose area of performance is in the direct vicinity of U.S. Armed Forces and who routinely are collocated with the U.S. Armed Forces (especially in non-permissive e…
  • FAR 32.104 Providing contract financing.
    …ntract financing can be a useful working tool in Government acquisition by expediting the performance of essential contracts. Contracting officers must consider the criteria in this part in determining whether to include contract financing …
  • FAR 52.246-3 Inspection of Supplies—Cost-Reimbursement.
    …y the Contractor shall be maintained and made available to the Government during contract performance and for as long afterwards as the contract requires. (c) The Government has the right to inspect and test the contract supplies, to the e…
  • FAR 52.246-5 Inspection of Services—Cost-Reimbursement.
    …y the Contractor shall be maintained and made available to the Government during contract performance and for as long afterwards as the contract requires. (c) The Government has the right to inspect and test all services called for by the …
  • FAR 52.246-7 Inspection of Research and Development—Fixed-Price.
    …y the Contractor shall be maintained and made available to the Government during contract performance and for as long afterwards as the contract requires. (b) The Government has the right to inspect and test all work called for by the cont…
  • DFARS 204.7103-1 Criteria for establishing.
    …l price of an item but the actual number and quantity of the elements are not known until performance. The contracting officer may structure these contracts to reflect a firm or estimated total amount for each line item; (v) When the contr…
  • FAR 16.205-1 Description.
    …ation provides for (a) a firm fixed price for an initial period of contract deliveries or performance and (b) prospective redetermination, at a stated time or times during performance, of the price for subsequent periods of performance.
  • FAR 19.807 Estimating the fair market price.
    …or the same items or work if there is comparability in quantities, conditions, terms, and performance times. The estimated price should be adjusted to reflect differences in specifications, plans, transportation costs, packaging and packing…
  • FAR 46.401 General.
    …quality assurance shall be performed at such times (including any stage of manufacture or performance of services) and places (including subcontractors' plants) as may be necessary to determine that the supplies or services conform to contr…
  • FAR 52.215-2 Audit and Records—Negotiation.
    …sts claimed to have been incurred or anticipated to be incurred directly or indirectly in performance of this contract. This right of examination shall include inspection at all reasonable times of the Contractor's plants, or parts of them,…
  • FAR 52.222-6 Construction Wage Rate Requirements.
    …uch site is— (A) Located in the United States; and (B) Established specifically for the performance of the contract or project; (2) Except as provided in paragraph (3) of this definition, includes any fabrication plants, mobile factories…
  • FAR 52.246-2 Inspection of Supplies—Fixed-Price.
    …These records shall be kept complete and made available to the Government during contract performance and for as long afterwards as the contract requires. The Government may perform reviews and evaluations as reasonably necessary to ascerta…
  • FAR 52.249-2 Termination for Convenience of the Government (Fixed-Price).
    … Convenience of the Government (Fixed-Price) (APR 2012) (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 Gov…
  • DFARS 252.217-7005 Inspection and manner of doing work.
    …ices of the Contractor and all workmanship, material, equipment, and articles used in the performance of work under the Master Agreement shall be in accordance with the best commercial marine practices and the rules and requirements of the …
  • DFARS 252.229-7004 Status of contractors as a direct contractor (Spain).
    …t of non-Spanish equipment, materials, and supplies represented as necessary for contract performance by the Contracting Officer. Orders for equipment, materials, and supplies placed prior to official notification of such approval shall be …
  • FAR 52.204-28 Federal Acquisition Supply Chain Security Act Orders—Federal Supply Schedules, Governmentwide Acquisition Contracts, and Multi-Agency Contracts.
    …or potential supplier, of products or services, at any tier. (b) Notice. During contract performance, the Contractor shall be required to comply with any of the following that apply: DHS FASCSA orders, DoD FASCSA orders, or DNI FASCSA orde…
  • FAR 52.214-26 Audit and Records—Sealed Bidding.
    …sal(s), including those related to negotiating; (3) Pricing of the modification; or (4) Performance of the modification. (c) Comptroller General. In the case of pricing any modification, the Comptroller General of the United States, or a…
  • FAR 52.215-23 Limitations on Pass-Through Charges.
    …gulation (FAR) 2.101, entered into by a subcontractor to furnish supplies or services for performance of the contract or a subcontract. It includes but is not limited to purchase orders, and changes and modifications to purchase orders. Su…
  • FAR 52.216-4 Economic Price Adjustment—Labor and Material.
    … (a) The Contractor shall notify the Contracting Officer if, at any time during contract performance, the rates of pay for labor (including fringe benefits) or the unit prices for material shown in the Schedule either increase or decrease.…
  • FAR 52.236-21 Specifications and Drawings for Construction.
    …rawings, diagrams, layouts, schematics, descriptive literature, illustrations, schedules, performance and test data, and similar materials furnished by the contractor to explain in detail specific portions of the work required by the contra…
  • FAR 52.246-13 Inspection—Dismantling, Demolition, or Removal of Improvements.
    …rom the premises any unsatisfactory facilities, materials, and equipment used in contract performance, and promptly replace them with satisfactory items. If the Contractor fails to proceed at once in a workmanlike manner with performance of…
  • FAR 52.249-3 Termination for Convenience of the Government (Dismantling, Demolition, or Removal of Improvements).
    …ing, Demolition, or Removal of Improvements) (APR 2012) (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 Go…
  • DFARS 252.247-7002 Revision of prices.
    …the accuracy and reliability of the new estimate; (4) A statement of the actual costs of performance under this contract to the extent that they are available at the time of the negotiation of the revision of prices under this clause; and …
  • FAR 7.107-2 Consolidation.
    …le in dollar amounts— (1) Quality improvements that will save time or improve or enhance performance or efficiency; (2) Reduction in acquisition cycle times; (3) Better terms and conditions; or (4) Any other benefit. (d) Benefits. (1) …
  • FAR 7.107-3 Bundling.
    … (2) Price reduction; (3) Quality improvements that will save time or improve or enhance performance or efficiency; (4) Reduction in acquisition cycle times, or (5) Better terms and conditions. (d) Benefits are measurably substantial if…
  • FAR 31.205-35 Relocation costs.
    …enefited. (f) Relocation costs (both outgoing and return) of employees who are hired for performance on specific contracts or long-term field projects are allowable if— (1) The term of employment is 12 months or more; (2) The employment …
  • FAR 47.207-8 Government responsibilities.
    … clearly the Government's responsibilities that have a direct bearing on the contractor's performance under the contract; e.g., the Government's responsibility to notify the contractor in advance when hazardous materials are included in a s…
  • FAR 50.205-1 SAFETY Act Considerations.
    …7.105(b)(20)(v)). Normally, this would be at the point where the required capabilities or performance characteristics are addressed. This is important because the processing times for issuing determinations on all types of SAFETY Act applic…
  • FAR 52.227-11 Patent Rights—Ownership by the Contractor.
    …on reasonable terms. Subject invention means any invention of the Contractor made in the performance of work under this contract. (b) Contractor's rights (1) Ownership. The Contractor may retain ownership of each subject invention through…

FAR (chapter 1)

DFARS (chapter 2, Defense)

Source: eCFR, 48 CFR chapters 1 and 2 (GPO GovInfo bulk data) ↗. Rule changes in progress: FAR, DFARS. Terms: glossary.