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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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28 sections with “best practices”

  • FAR 16.401 General.
    …ntive- and award-fee contracts justifying that the use of this type of contract is in the best interest of the Government. This determination shall be documented in the contract file and, for award-fee contracts, shall address all of the su…
  • FAR 37.501 Definition.
    Best practices, as used in this subpart, means techniques that agencies may use to help detect problems in the acquisition, management, and administration of service contracts. Best practices are practical techniques gained from experience …
  • DFARS 203.170 Business practices.
    …t negotiation, and contract award, departments and agencies shall adhere to the following best practice policies: (a) Senior leaders shall not perform multiple roles in source selection for a major weapon system or major service acquisitio…
  • DFARS 207.106 Additional requirements for major systems.
    …ograms as defined in 202.101, shall include performance measures that are developed using best practices for responding to the positive or negative performance of a contractor for the engineering and manufacturing development or production …
  • FAR 4.2104 Waivers.
    …tor of National Intelligence (ODNI) on the waiver request using ODNI guidance, briefings, best practices, or direct inquiry, as appropriate; and (iv) Notify the ODNI and the FASC 15 days prior to granting the waiver that it intends to gran…
  • FAR 15.404-1 Proposal analysis techniques.
    …) The probable cost may differ from the proposed cost and should reflect the Government's best estimate of the cost of any contract that is most likely to result from the offeror's proposal. The probable cost shall be used for purposes of e…
  • FAR 36.104 Policy.
    …nce costs; (3) Ensure that rehabilitation of Federally-owned historic buildings utilizes best practices and technologies in retrofitting to promote long-term viability of the buildings; and (4) Ensure pollution prevention and eliminate wa…
  • FAR 37.504 Contracting officials' responsibilities.
    Contracting officials should ensure that “best practices” techniques are used when contracting for services and in contract management and administration (see OFPP Policy Letter 93-1).
  • DFARS 252.244-7001 Contractor Purchasing System Administration.
    …ndors selected and prices paid; (6) Apply a consistent make-or-buy policy that is in the best interest of the Government; (7) Use competitive sourcing to the maximum extent practicable, and ensure debarred or suspended contractors are pro…
  • FAR 22.1703 Policy.
    …prohibited activities; and (B) After having conducted due diligence, either— (1) To the best of the offeror's knowledge and belief, neither it nor any of its agents, proposed subcontractors, or their agents, has engaged in any such activi…
  • DFARS 217.7404-1 Authorization.
    …t inclusion of the non-urgent items is consistent with good business practices and in the best interest of the United States. (c) Modifying the scope of a UCA when performance has already begun. The request should show that the modificatio…
  • FAR 5.404-1 Release procedures.
    … described in this part; (3) Each release states that— (i) The estimate is based on the best information available; (ii) The information is subject to modification and is in no way binding on the Government; and (iii) More specific info…
  • FAR 15.408 Solicitation provisions and contract clauses.
    …are not segregated in or otherwise available from your records, enter in this column your best estimates. Explain the basis for each estimate and how the costs are charged on your accounting records (e.g., included in production costs as di…
  • FAR 22.404-2 General requirements.
    …construction involved, guidance shall be sought before the opening of bids, or receipt of best and final offers, from the Administrator, Wage and Hour Division. Further examples are contained in Department of Labor All Agency Memoranda Numb…
  • FAR 35.007 Solicitations.
    …a contractor to perform R&D, it should not be disregarded in arriving at a selection that best satisfies the Government's requirement at a fair and reasonable cost. (g) The contracting officer should ensure that potential offerors fully un…
  • FAR 39.101 Policy.
    …cient or environmentally preferable features on all agency electronic products; and (iv) Best management practices for energy-efficient management of servers and Federal data centers. (2) When developing an acquisition strategy, contracti…
  • FAR 42.302 Contract administration functions.
    … of an inconsequential delivery shortage, and it is determined that such action is in the best interests of the Government, notwithstanding the default provisions of the contract. Such action will be taken only upon the written request of t…
  • FAR 52.222-50 Combating Trafficking in Persons.
    …rohibited activities; and (ii) After having conducted due diligence, either— (A) To the best of the Contractor's knowledge and belief, neither it nor any of its agents, subcontractors, or their agents is engaged in any such activities; or…
  • FAR 52.232-7 Payments under Time-and-Materials and Labor-Hour Contracts.
    … exceed the ceiling price set forth in the Schedule, and the Contractor agrees to use its best efforts to perform the work specified in the Schedule and all obligations under this contract within such ceiling price. If at any time the Contr…
  • FAR 52.232-16 Progress Payments.
    … the progress payment request. The estimates to complete shall represent the Contractor's best estimate of total costs to complete all remaining contract work required under the contract. The estimates shall include sufficient detail to per…
  • FAR 52.232-32 Performance-Based Payments.
    … following certification in each request for performance-based payment: I certify to the best of my knowledge and belief that— (1) This request for performance-based payment is true and correct; this request (and attachments) has been pre…
  • FAR 52.245-1 Government Property.
    …shall separate the damaged and undamaged property, place all the affected property in the best possible order, and take such other action as the Property Administrator directs. (3) The Contractor shall do nothing to prejudice the Governmen…
  • DFARS 215.407-5-70 Disclosure, maintenance, and review requirements.
    …acting officer, with concurrence or at the request of the ACO, determines it to be in the best interest of the Government (e.g., significant estimating problems are believed to exist or the contractor's sales are predominantly Government). …
  • DFARS 232.1001 Policy.
    …itional defense contractors, are eligible for performance-based payments, consistent with best commercial practices. (d) The contracting officer shall use the following standard payment terms for performance-based payments: The contractor …
  • DFARS 237.7204 Format and clauses for educational service agreements.
    …ate students, should both the student and the Contractor decide it to be in the student's best interests to assist in the institution's teaching program, the Contractor may provide nominal compensation for part-time service. Base the compen…
  • DFARS 252.217-7005 Inspection and manner of doing work.
    …sed 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 American Bureau of Shipping, the U.S. Coast Guard, and the Institute of Electri…
  • DFARS 252.237-7023 Continuation of Essential Contractor Services.
    …cting Officer or other designated representative as expeditiously as possible and use its best efforts to cooperate with the Government in the Government's efforts to maintain the continuity of operations. (e) The Government reserves the r…
  • DFARS 252.239-7007 Cancellation or Termination of Orders.
    …lity for which the Contractor has no foreseeable reuse. (2) The Contractor shall use its best efforts to sell property or facilities when the Contractor has no foreseeable reuse or when the Government has not exercised its option to take t…

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.