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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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114 sections with “fixed period”: the first 40

  • FAR 16.306 Cost-plus-fixed-fee contracts.
    (a) Description. A cost-plus-fixed-fee contract is a cost-reimbursement contract that provides for payment to the contractor of a negotiated fee that is fixed at the inception of the contract. The fixed fee does not vary with actual cost, b…
  • FAR 49.504 Termination of fixed-price contracts for default.
    …plies and services. The contracting officer shall insert the clause at 52.249-8, Default (Fixed-Price Supply and Service), in solicitations and contracts when a fixed-price contract is contemplated and the contract amount is expected to exc…
  • FAR 52.246-2 Inspection of Supplies—Fixed-Price.
    As prescribed in 46.302, insert the following clause: Inspection of Supplies—Fixed-Price (AUG 1996) (a) Definition. Supplies, as used in this clause, includes but is not limited to raw materials, components, intermediate assemblies, end p…
  • FAR 7.105 Contents of written acquisition plans.
    … selection. Discuss the rationale for the selection of contract type. For other than firm-fixed-price contracts, see 16.103(d) for additional documentation guidance. Acquisition personnel shall document the acquisition plan with findings th…
  • FAR 8.404 Use of Federal Supply Schedules.
    …on of the supply or service. (d) Pricing. Supplies offered on the schedule are listed at fixed prices. Services offered on the schedule are priced either at hourly rates, or at a fixed price for performance of a specific task (e.g., instal…
  • FAR 8.405-3 Blanket purchase agreements (BPAs).
    …only a single source can reasonably perform the work; (B) The BPA provides only for firm-fixed priced orders for— (1) Products with unit prices established in the BPA; or (2) Services with prices established in the BPA for specific tasks…
  • FAR 15.408 Solicitation provisions and contract clauses.
    …cant value, the contracting officer shall use the clause with— (1) Its Alternate I, if a fixed-price incentive contract is contemplated; or (2) Its Alternate II, if a cost-plus-incentive-fee contract is contemplated. (b) Price Reduction …
  • FAR 16.103 Negotiating contract type.
    …tractor with the greatest incentive for efficient and economical performance. (b) A firm-fixed-price contract, which best utilizes the basic profit motive of business enterprise, shall be used when the risk involved is minimal or can be pr…
  • FAR 16.104 Factors in selecting contract types.
    …ce competition. Normally, effective price competition results in realistic pricing, and a fixed-price contract is ordinarily in the Government's interest. (b) Price analysis. Price analysis with or without competition, may provide a basis …
  • FAR 16.601 Time-and-materials contracts.
    … for acquiring supplies or services on the basis of— (1) Direct labor hours at specified fixed hourly rates that include wages, overhead, general and administrative expenses, and profit; and (2) Actual cost for materials (except as provid…
  • FAR 49.502 Termination for convenience of the Government.
    (a) Fixed-price contracts that do not exceed the simplified acquisition threshold (short form)—(1) General use. The contracting officer shall insert the clause at 52.249-1, Termination for Convenience of the Government (Fixed-Price) (Short …
  • FAR 52.212-4 Contract Terms and Conditions—Commercial Products and Commercial Services.
    …in (i)(6)(v) of this clause, and then at the rate applicable for each six-month period as fixed by the Secretary until the amount is paid. (ii) The Government may issue a demand for payment to the Contractor upon finding a debt is due unde…
  • FAR 52.216-17 Incentive Price Revision—Successive Targets.
    …R) in effect on the date of this contract. (c) Submitting data for establishing the firm fixed price or a final profit adjustment formula. (1) Within __ [Contracting Officer insert number of days] days after the end of the month in which t…
  • FAR 52.230-6 Administration of Cost Accounting Standards.
    …prohibition provisions of CAS-covered contracts and subcontracts affected by the change. Fixed-price contracts and subcontracts means— (1) Fixed-price contracts and subcontracts described at FAR 16.202, 16.203, (except when price adjustme…
  • FAR 52.248-1 Value Engineering.
    … the term does not include quantities funded after VECP acceptance. If this contract is a fixed-price contract with prospective price redetermination, the term refers to the period for which firm prices have been established. Instant unit …
  • DFARS 215.404-71-3 Contract type risk and working capital adjustment.
    …is an adjustment added to the profit objective for contract type risk. It only applies to fixed-price contracts that provide for progress payments. Though it uses a formula approach, it is not intended to be an exact calculation of the cost…
  • DFARS 216.601 Time-and-materials contracts.
    …to anticipate costs with any reasonable degree of certainty; (3) Address why a cost-plus-fixed-fee term or other cost-reimbursement, incentive, or fixed-price contract or order is not appropriate; for contracts (including indefinite-delive…
  • DFARS 235.006 Contracting methods and contract type.
    … 234.004; and (B) Notify the milestone decision authority of an intent not to exercise a fixed-price production option on a development contract for a major weapon system reasonably in advance of the expiration of the option exercise perio…
  • DFARS 246.710 Contract clauses.
    …n FAR part 46. (i) Use the basic clause in solicitations and contracts that are not firm-fixed price or fixed-price incentive. (ii) Use alternate I in fixed-price-incentive solicitations and contracts. (iii) Use alternate II in firm-fixe…
  • DFARS 252.246-7001 Warranty of data.
    …ontractor's liability shall be— (A) Ten percent of the total subcontract price in a firm-fixed-price subcontract; (B) Seventy-five percent of the total subcontract fee in a cost-plus-fixed-fee or cost-plus-award-fee subcontract; or (C) S…
  • FAR 16.504 Indefinite-quantity contracts.
    …ovides for an indefinite quantity, within stated limits, of supplies or services during a fixed period. The Government places orders for individual requirements. Quantity limits may be stated as number of units or as dollar values. (1) The…
  • FAR 30.605 Processing noncompliances.
    …act and subcontract incentives, fees, and profits, for each of the following groups: (A) Fixed-price contracts and subcontracts. (B) Flexibly-priced contracts and subcontracts. (ii) The increased or decreased costs to the Government for …
  • FAR 32.904 Determining payment due dates.
    …ate for making payments on contracts that contain the clause at 52.232-10, Payments Under Fixed-Price Architect-Engineer Contracts, is as follows: (i) The due date for work or services completed by the contractor is the later of the follow…
  • FAR 52.203-10 Price or Fee Adjustment for Illegal or Improper Activity.
    …roper Activity (MAY 2014) (a) The Government, at its election, may reduce the price of a fixed-price type contract and the total cost and fee under a cost-type contract by the amount of profit or fee determined as set forth in paragraph (b…
  • FAR 52.229-6 Taxes—Foreign Fixed-Price Contracts.
    As prescribed in 29.402-1(a), insert the following clause: Taxes—Foreign Fixed-Price Contracts (FEB 2013) (a) To the extent that this contract provides for furnishing supplies or performing services outside the United States and its outly…
  • FAR 52.232-5 Payments Under Fixed-Price Construction Contracts.
    As prescribed in 32.111(a)(5), insert the following clause: Payments Under Fixed-Price Construction Contracts (MAY 2014) (a) Payment of price. The Government shall pay the Contractor the contract price as provided in this contract. (b) P…
  • FAR 52.232-26 Prompt Payment for Fixed-Price Architect-Engineer Contracts.
    As prescribed in 32.908(a), insert the following clause: Prompt Payment for Fixed-Price Architect-Engineer Contracts (JAN 2017) Notwithstanding any other payment terms in this contract, the Government will make invoice payments under the …
  • FAR 52.243-1 Changes—Fixed-Price.
    …ollowing clause. The 30-day period may be varied according to agency 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…
  • FAR 52.246-7 Inspection of Research and Development—Fixed-Price.
    …cribed in 46.307(a), insert the following clause: Inspection of Research and Development—Fixed-Price (AUG 1996) (a) The Contractor shall provide and maintain an inspection system acceptable to the Government covering the work under this c…
  • FAR 52.249-2 Termination for Convenience of the Government (Fixed-Price).
    …02(b)(1)(i), insert the following clause: Termination for 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 Contr…
  • FAR 52.249-10 Default (Fixed-Price Construction).
    As prescribed in 49.504(c)(1), insert the following clause: Default (Fixed-Price Construction) (APR 1984) (a) If the Contractor refuses or fails to prosecute the work or any separable part, with the diligence that will insure its completi…
  • DFARS 252.235-7000 Indemnification Under 10 U.S.C. 3861—Fixed Price.
    … prescribed in 235.070-3, use the following clause: Indemnification Under 10 U.S.C. 3861—Fixed Price (DEC 2022) (a) This clause provides for indemnification under 10 U.S.C. 3861 if the Contractor meets all the terms and conditions of this…
  • FAR 8.405-2 Ordering procedures for services requiring a statement of work.
    …s at 8.405-6(a). (iii) The ordering activity shall specify the type of order (i.e., firm-fixed-price, labor-hour) for the services identified in the statement of work. The contracting officer should establish firm-fixed-prices, as appropri…
  • FAR 16.203-4 Contract clauses.
    … below, in solicitations and contracts when all of the following conditions apply: (i) A fixed-price contract is contemplated. (ii) The requirement is for standard supplies that have an established catalog or market price. (iii) The cont…
  • FAR 16.205-2 Application.
    A fixed-price contract with prospective price redetermination may be used in acquisitions of quantity production or services for which it is possible to negotiate a fair and reasonable firm fixed price for an initial period, but not for sub…
  • FAR 16.206-2 Application.
    A fixed-ceiling-price contract with retroactive price redetermination is appropriate for research and development contracts estimated at the simplified acquisition threshold or less when it is established at the outset that a fair and reaso…
  • FAR 16.401 General.
    (a) Incentive contracts as described in this subpart are appropriate when a firm-fixed-price contract is not appropriate and the required supplies or services can be acquired at lower costs and, in certain instances, with improved delivery …
  • FAR 16.502 Definite-quantity contracts.
    …tract provides for delivery of a definite quantity of specific supplies or services for a fixed period, with deliveries or performance to be scheduled at designated locations upon order. (b) Application. A definite-quantity contract may be…
  • FAR 17.207 Exercise of options.
    …rovided in the basic contract, but not including renegotiation of the price for work in a fixed-price type contract; (3) In the case of a cost-type contract, if— (i) The option contains a fixed or maximum fee; or (ii) The fixed or maximu…
  • FAR 43.205 Contract clauses.
    (a)(1) The contracting officer shall insert the clause at 52.243-1, Changes—Fixed-Price, in solicitations and contracts when a fixed-price contract for supplies is contemplated. (2) If the requirement is for services, other than architect-…

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.