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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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277 sections with “reasonable time”: the first 40

  • DFARS 212.209 Determination of price reasonableness.
    …(d), agencies shall conduct or obtain market research to support the determination of the reasonableness of price for commercial products and commercial services contained in any bid or offer submitted in response to an agency solicitation.…
  • FAR 2.101 Definitions.
    …d through a comprehensive plan for fulfilling the agency need in a timely manner and at a reasonable cost. It includes developing the overall strategy for managing the acquisition. Activity Address Code (AAC) means a distinct six-position …
  • FAR 14.202-1 Bidding time.
    (a) Policy. A reasonable time for prospective bidders to prepare and submit bids shall be allowed in all invitations, consistent with the needs of the Government. (For construction contracts, see 36.213-3(a).) A bidding time (i.e., the time…
  • FAR 27.302 Policy.
    …inventions to meet the needs of the Government and protect the public against nonuse or unreasonable use of inventions; and (6) Minimize the costs of administering patent policies. (b) Contractor right to elect title. (1) Generally, pursu…
  • FAR 31.205-46 Travel costs.
    …actual costs incurred, or on a combination thereof, provided the method used results in a reasonable charge. Costs for lodging, meals, and incidental expenses may be based on per diem, actual expenses, or a combination thereof, provided the…
  • FAR 33.104 Protests to GAO.
    …e award has been made, or, if no award has been made, to all parties who appear to have a reasonable prospect of receiving award if the protest is denied. The agency shall furnish copies of the protest submissions to such parties with instr…
  • FAR 52.212-4 Contract Terms and Conditions—Commercial Products and Commercial Services.
    …supplies or services. The Government must exercise its postacceptance rights (1) within a reasonable time after the defect was discovered or should have been discovered; and (2) before any substantial change occurs in the condition of the i…
  • FAR 52.245-1 Government Property.
    …ernment property includes, but is not limited to— (1) Items that cannot be found after a reasonable search; (2) Theft; (3) Damage resulting in unexpected harm to property requiring repair to restore the item to usable condition; or (4) …
  • FAR 52.246-2 Inspection of Supplies—Fixed-Price.
    …rnish, and shall require subcontractors to furnish, at no increase in contract price, all reasonable facilities and assistance for the safe and convenient performance of these duties. Except as otherwise provided in the contract, the Govern…
  • FAR 52.246-17 Warranty of Supplies of a Noncomplex Nature.
    …delivery under this contract,” or “45 days after discovery of the defect”]. (2) Within a reasonable time after the notice, the Contracting Officer may either— (i) Require, by written notice, the prompt correction or replacement of any sup…
  • FAR 52.249-2 Termination for Convenience of the Government (Fixed-Price).
    …t to be paid or remaining to be paid because of the termination. The amount may include a reasonable allowance for profit on work done. However, the agreed amount, whether under this paragraph (f) or paragraph (g) of this clause, exclusive …
  • DFARS 252.246-7001 Warranty of data.
    …otifies the Contractor of the breach in writing within the warranty period: (1) Within a reasonable time after such notification, the Contracting Officer may— (i) By written notice, direct the Contractor to correct or replace at the Contr…
  • FAR 16.601 Time-and-materials contracts.
    …to estimate accurately the extent or duration of the work or to anticipate costs with any reasonable degree of confidence. See 12.207(b) for the use of time-and-material contracts for certain commercial services. (1) Government surveillanc…
  • FAR 52.246-6 Inspection—Time-and-Material and Labor-Hour.
    …bcontractor, the Contractor shall furnish and shall require subcontractors to furnish all reasonable facilities and assistance for the safe and convenient performance of these duties. (e) Unless otherwise specified in the contract, the Gov…
  • FAR 52.246-19 Warranty of Systems and Equipment under Performance Specifications or Design Criteria.
    … notice not to correct any defect, or to correct or partially correct any defect within a reasonable time at ____ [Contracting Officer shall insert locations where corrections may be performed]. (3) In no event shall the Government be resp…
  • FAR 52.249-3 Termination for Convenience of the Government (Dismantling, Demolition, or Removal of Improvements).
    …or any part of the amount to be paid because of the termination. The amount may include a reasonable allowance for profit on work done. However, the agreed amount, whether under this paragraph (f) or paragraph (g) of this clause, exclusive …
  • FAR 52.249-6 Termination (Cost-Reimbursement).
    …act before the effective date of the termination, and those costs that may continue for a reasonable time with the approval of or as directed by the Contracting Officer; however, the Contractor shall discontinue these costs as rapidly as pr…
  • FAR 8.404 Use of Federal Supply Schedules.
    …, and rates for services offered at hourly rates, under schedule contracts to be fair and reasonable. Therefore, ordering activities are not required to make a separate determination of fair and reasonable pricing, except for a price evalua…
  • FAR 8.405-3 Blanket purchase agreements (BPAs).
    …o be performed; (C) Only one source is qualified and capable of performing the work at a reasonable price to the Government; or (D) It is necessary in the public interest to award the BPA to a single source for exceptional circumstances. …
  • FAR 15.402 Pricing policy.
    … officers shall— (a) Purchase supplies and services from responsible sources at fair and reasonable prices. In establishing the reasonableness of the offered prices, the contracting officer— (1) Shall obtain certified cost or pricing data…
  • FAR 15.403-1 Prohibition on obtaining certified cost or pricing data (10 U.S.C. chapter 271 and 41 U.S.C. chapter 35).
    …ied cost or pricing data as defined in FAR 2.101 to support a determination of a fair and reasonable price or cost realism)— (1) When the contracting officer determines that prices agreed upon are based on adequate price competition (see s…
  • FAR 15.403-3 Requiring data other than certified cost or pricing data.
    …le from Government or other secondary sources and use that data in determining a fair and reasonable price; (ii) Require submission of data other than certified cost or pricing data, as defined in 2.101, from the offeror to the extent nece…
  • FAR 15.404-1 Proposal analysis techniques.
    …he objective of proposal analysis is to ensure that the final agreed-to price is fair and reasonable. (1) The contracting officer is responsible for evaluating the reasonableness of the offered prices. The analytical techniques and procedu…
  • FAR 15.408 Solicitation provisions and contract clauses.
    …vide data showing the degree of competition and the basis for establishing the source and reasonableness of price for those acquisitions (such as subcontracts, purchase orders, material order, etc.) exceeding, or expected to exceed, the app…
  • FAR 22.404-6 Modifications of wage determinations.
    …ys before the date of bid opening, unless the contracting officer finds that there is not reasonable time available before bid opening to notify the prospective bidders. (If the contracting officer finds that there is not reasonable time to…
  • FAR 26.203 Transition of work.
    … individual contract or class basis. The written determination shall be prepared within a reasonable time given the circumstances of the emergency. (c) In effecting the transition, agencies are not required to terminate or renegotiate exis…
  • FAR 27.305-4 Protection of invention disclosures.
    …tion disclosures reported under the patent rights clauses of 52.227-11 or 52.227-13 for a reasonable time in order for patent applications to be filed. The Government will follow the policy in 27.302(j) regarding protection of confidentiali…
  • FAR 31.205-6 Compensation for personal services.
    … (2) The total compensation for individual employees or job classes of employees must be reasonable for the work performed; however, specific restrictions on individual compensation elements apply when prescribed. (3) The compensation mus…
  • FAR 31.205-42 Termination costs.
    … that the quantities of such items on hand, in transit, and on order are in excess of the reasonable quantitative requirements of other work. (b) Costs continuing after termination. Despite all reasonable efforts by the contractor, costs w…
  • FAR 52.203-12 Limitation on Payments to Influence Certain Federal Transactions.
    …rposes specified in paragraph (b) of this clause and are permitted by other Federal law. Reasonable compensation means, with respect to a regularly employed officer or employee of any person, compensation that is consistent with the normal…
  • FAR 52.215-2 Audit and Records—Negotiation.
    …n performance of this contract. This right of examination shall include inspection at all reasonable times of the Contractor's plants, or parts of them, engaged in performing the contract. (c) Certified cost or pricing data. If the Contrac…
  • FAR 52.216-7 Allowable Cost and Payment.
    …r 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 supported by a statement of the claimed allowable cost for performing this …
  • FAR 52.225-9 Buy American—Construction Materials.
    …he Government determines that— (i) The cost of domestic construction material would be unreasonable. (A) For domestic construction material that is not a critical item or does not contain critical components. (1) The cost of a particular …
  • FAR 52.225-11 Buy American—Construction Materials Under Trade Agreements.
    …he Government determines that— (i) The cost of domestic construction material would be unreasonable. (A) For domestic construction material that is not a critical item or does not contain critical components. (1) The cost of a particular …
  • FAR 52.225-21 Required Use of American Iron, Steel, and Manufactured Goods—Buy American Statute—Construction Materials.
    …he Government determines that— (i) The cost of domestic construction material would be unreasonable; (A) The cost of domestic manufactured construction material, when compared to the cost of comparable foreign manufactured construction ma…
  • FAR 52.225-23 Required Use of American Iron, Steel, and Manufactured Goods—Buy American Statute—Construction Materials Under Trade Agreements.
    …he Government determines that— (i) The cost of domestic construction material would be unreasonable; (A) The cost of domestic manufactured construction material is unreasonable when the cumulative cost of such material, when compared to t…
  • FAR 52.232-7 Payments under Time-and-Materials and Labor-Hour Contracts.
    …unts are not susceptible of exact statement by the Contractor. (2) Claims, together with reasonable incidental expenses, based upon the liabilities of the Contractor to third parties arising out of performing this contract, that are not kn…
  • FAR 52.232-12 Advance Payments.
    …ithdraw funds from the special account only to pay for properly allocable, allowable, and reasonable costs for direct materials, direct labor, and indirect costs. Other withdrawals require approval in writing by the administering office. De…
  • FAR 52.241-5 Contractor's Facilities.
    …ives of the Contractor will be allowed access to the facilities on Government premises at reasonable times to perform the obligations of the Contractor regarding such facilities. It is expressly understood that the Government may limit or r…
  • FAR 52.242-14 Suspension of Work.
    …ce of the Government. (b) If the performance of all or any part of the work is, for an unreasonable period of time, suspended, delayed, or interrupted (1) by an act of the Contracting Officer in the administration of this contract, or (2) …

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.