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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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33 sections with “reasonable care”

  • FAR 31.201-3 Determining reasonableness.
    (a) A cost is reasonable if, in its nature and amount, it does not exceed that which would be incurred by a prudent person in the conduct of competitive business. Reasonableness of specific costs must be examined with particular care in con…
  • 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 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 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 52.246-17 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…
  • DFARS 227.7103-13 Government right to review, verify, challenge, and validate asserted restrictions.
    …S.C. 3782, the Government has the right to challenge asserted restrictions when there are reasonable grounds to question the validity of the assertion and continued adherence to the assertion would make it impractical to later procure compe…
  • DFARS 252.217-7005 Inspection and manner of doing work.
    …a welder shall be as specified in the job order. (e) The Contractor shall— (1) Exercise reasonable care to protect the vessel from fire; (2) Maintain a reasonable system of inspection over activities taking place in the vicinity of the v…
  • DFARS 252.228-7001 Ground and Flight Risk.
    …Contractor's premises shall be considered to be in flight when on the ground or water for reasonable periods of time following emergency landings, landings made in performance of the contract, or landings approved in writing by the contract…
  • FAR 14.408-2 Responsible bidder—reasonableness of price.
    …a prospective contractor is responsible (see subpart 9.1) and that the prices offered are reasonable before awarding the contract. The price analysis techniques in 15.404-1(b) may be used as guidelines. In each case the determination shall …
  • FAR 52.237-2 Protection of Government Buildings, Equipment, and Vegetation.
    …n of Government Buildings, Equipment, and Vegetation (APR 1984) The Contractor shall use reasonable care to avoid damaging existing buildings, equipment, and vegetation on the Government installation. If the Contractor's failure to use rea…
  • FAR 52.246-8 Inspection of Research and Development—Cost-Reimbursement.
    …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 provided in the contract, the Gove…
  • 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 52.212-3 Offeror Representations and Certifications—Commercial Products and Commercial Services.
    …entity that is replaced by a successor and includes any predecessors of the predecessor. Reasonable inquiry has the meaning provided in the clause 52.204-25, Prohibition on Contracting for Certain Telecommunications and Video Surveillance …
  • FAR 52.236-9 Protection of Existing Vegetation, Structures, Equipment, Utilities, and Improvements.
    …ting from failure to comply with the requirements of this contract or failure to exercise reasonable care in performing the work. If the Contractor fails or refuses to repair the damage promptly, the Contracting Officer may have the necessa…
  • FAR 52.246-3 Inspection of Supplies—Cost-Reimbursement.
    …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 52.246-6 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…
  • DFARS 227.7203-13 Government right to review, verify, challenge, and validate asserted restrictions.
    … a particular asserted restriction and may challenge asserted restrictions when there are reasonable grounds to believe that an assertion is not valid. (b) Requests for information. Contracting officers should have a reason to suspect that…
  • DFARS 237.104 Personal services contracts.
    …shed for the particular personal services being acquired and the Government's estimate of reasonable rates, fees, or other costs. The commander of the facility shall provide the contracting officer with rationale for the ranking of individu…
  • FAR 16.505 Ordering.
    …sk or delivery order that includes a clear statement of the agency's requirements; (B) A reasonable response period; (C) Disclosure of the significant factors and subfactors, including cost or price, that the agency expects to consider in…
  • FAR 16.104 Factors in selecting contract types.
    …ible impact upon costs be identified and evaluated, so that a contract type that places a reasonable degree of cost responsibility upon the contractor can be negotiated. (d) Type and complexity of the requirement. Complex requirements, par…
  • FAR 22.101-2 Contract pricing and administration.
    …ontracts or for recognition of costs in pricing fixed-price contracts if they result in unreasonable costs to the Government. For a discussion of allowable costs resulting from labor-management agreements, see 31.205-6(b). (b) Labor disput…
  • FAR 31.001 Definitions.
    … amount of year end accruals for salaries, wages, or bonuses that are to be paid within a reasonable period of time after the end of a cost accounting period. Defined-benefit pension plan means a pension plan in which the benefits to be pa…
  • FAR 31.205-37 Royalties and other costs for use of patents.
    …nenforceable; or (4) The patent is expired. (b) Care should be exercised in determining reasonableness when the royalties may have been arrived at as a result of less-than-arm's-length bargaining; e.g., royalties— (1) Paid to persons, in…
  • FAR 35.008 Evaluation for award.
    …oposed contractor's cost or price estimate, not only to determine whether the estimate is reasonable but also to provide valuable insight into the offeror's understanding of the project, perception of risks, and ability to organize and perf…
  • FAR 44.202-2 Considerations.
    …) Subcontracts are proposed for award on a non-competitive basis, at prices that appear unreasonable, or at prices higher than those offered to the Government in comparable circumstances; or (4) Subcontracts are proposed on a cost-reimburs…
  • FAR 49.603-1 Fixed-price contracts—complete termination.
    … are properly allocable to the terminated portion of the contract, (ii) do not exceed the reasonable quantitative requirements of the terminated portion of the contract, and (iii) do not include any items reasonably usable without loss to t…
  • FAR 49.603-3 Cost-reimbursement contracts—complete termination, if settlement includes cost.
    … are properly allocable to the terminated portion of the contract, (ii) do not exceed the reasonable quantitative requirements of the terminated portion of the contract, and (iii) do not include any items reasonably usable without loss to t…
  • FAR 52.228-7 Insurance—Liability to Third Persons.
    … reimbursement. (c) The Contractor shall be reimbursed— (1) For that portion (i) of the reasonable cost of insurance allocable to this contract and (ii) required or approved under this clause; and (2) For certain liabilities (and expense…
  • FAR 52.236-14 Availability and Use of Utility Services.
    …g rates charged to the Government or, where the utility is produced by the Government, at reasonable rates determined by the Contracting Officer. The Contractor shall carefully conserve any utilities furnished without charge. (b) The Contr…
  • DFARS 228.370-1 Definitions.
    …contractor's premises shall be considered to be in flight when on the ground or water for reasonable periods of time following emergency landings, landings made in performance of the contract, or landings approved in writing by the contract…
  • DFARS 252.225-7040 Contractor Personnel Supporting U.S. Armed Forces Deployed Outside the United States.
    …obtain effective security services; (B) Effective security services are unavailable at a reasonable cost; or (C) Threat conditions necessitate security through military means. (ii) In appropriate cases, the Combatant Commander may provid…
  • DFARS 252.226-7003 Drug-Free Work Force.
    …n, the Contractor may establish a program for employee drug testing— (A) When there is a reasonable suspicion that an employee uses illegal drugs; or (B) When an employee has been involved in an accident or unsafe practice; (C) As part o…
  • DFARS 252.247-7007 Liability and insurance.
    …Government, upon the request of the Contracting Officer, at the Government's expense, all reasonable assistance and cooperation in obtaining recovery, including the prosecution of suit and the execution of instruments of assignment in favor…

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.