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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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30 sections with “Main operating base”

  • FAR 2.101 Definitions.
    …ngineering and technical direction (see 9.505-1(b)) to ensure the effective operation and maintenance of a weapon system or major system as defined in OMB Circular No. A-109 or to provide direct support of a weapon system that is essential …
  • FAR 52.219-9 Small Business Subcontracting Plan.
    …rate representation of a concern's size and ownership characteristics for the purposes of maintaining a small, veteran-owned small, service-disabled veteran-owned small, HUBZone small, small disadvantaged, and women-owned small business sou…
  • FAR 52.222-62 Paid Sick Leave Under Executive Order 13706.
    … plan means a plan to which more than one employer is required to contribute and which is maintained pursuant to one or more collective bargaining agreements between one or more employee organizations and more than one employer. Paid sick …
  • FAR 52.232-12 Advance Payments.
    …otherwise upon completion or termination of this contract, the Contractor shall pay the remaining interest to the Government on demand. (g) Financial institution agreement. Before an advance payment is made under this contract, the Contrac…
  • FAR 52.248-1 Value Engineering.
    …year contract. Collateral costs, as used in this clause, means agency cost of operation, maintenance, logistic support, or Government-furnished property. Collateral savings, as used in this clause, means those measurable net reductions re…
  • DFARS 252.242-7004 Material Management and Accounting System.
    …nt with the need to fulfill the production plan. (b) General. The Contractor shall— (1) Maintain an MMAS that— (i) Reasonably forecasts material requirements; (ii) Ensures that costs of purchased and fabricated material charged or alloc…
  • DFARS 225.7019-1 Definitions.
    …ered military installation means a military installation in Europe identified by DoD as a main operating base. Furnished energy means energy furnished to a covered military installation in any form and for any purpose, including heating, c…
  • DFARS 252.225-7053 Representation Regarding Prohibition on Use of Certain Energy Sourced from Inside the Russian Federation.
    …ered military installation means a military installation in Europe identified by DoD as a main operating base. Furnished energy means energy furnished to a covered military installation in any form and for any purpose, including heating, c…
  • DFARS 252.225-7054 Prohibition on Use of Certain Energy Sourced from Inside the Russian Federation.
    …ered military installation means a military installation in Europe identified by DoD as a main operating base. Furnished energy means energy furnished to a covered military installation in any form and for any purpose, including heating, c…
  • DFARS 252.227-7014 Rights in Other Than Commercial Computer Software and Other Than Commercial Computer Software Documentation.
    …ation in its possession and notifies the licensor of the transfer. Transferred programs remain subject to the provisions of this clause; (3) Make a reasonable number of copies of the computer software required for the purposes of safekeepi…
  • DFARS 252.227-7018 Rights in Other Than Commercial Technical Data and Computer Software—Small Business Innovation Research Program and Small Business Technology Transfer Program.
    …ation in its possession and notifies the licensor of the transfer. Transferred programs remain subject to the provisions of this clause; (3) Make a reasonable number of copies of the computer software required for the purposes of safekeepi…
  • DFARS 252.227-7013 Rights in Technical Data—Other Than Commercial Products and Commercial Services.
    …rocesses; (iv) Form, fit, and function data; (v) Necessary for installation, operation, maintenance, or training purposes (other than detailed manufacturing or process data); (vi) Corrections or changes to technical data furnished to the…
  • FAR 1.102-2 Performance standards.
    …, fairness, and openness. (1) An essential consideration in every aspect of the System is maintaining the public's trust. Not only must the System have integrity, but the actions of each member of the Team must reflect integrity, fairness, …
  • FAR 31.105 Construction and architect-engineer contracts.
    …y include costs for such items as fuel, filters, oil, and grease; servicing, repairs, and maintenance; and tire wear and repair. Costs of labor, mobilization, demobilization, overhead, and profit are generally not reflected in schedules, an…
  • FAR 31.205-35 Relocation costs.
    …) Continuing costs of ownership of the vacant former actual residence being sold, such as maintenance of building and grounds (exclusive of fixing up expenses), utilities, taxes, property insurance, and mortgage interest, after the settleme…
  • FAR 52.241-6 Service Provisions.
    …sured by suitable metering equipment of standard manufacture, to be furnished, installed, maintained, repaired, calibrated, and read by the Contractor at its expense. When more than a single meter is installed at a service location, the rea…
  • DFARS 252.219-7004 Small Business Subcontracting Plan (Test Program).
    …meet the requirements of 15 U.S.C. 637(d). (c) Eligibility requirements. To become and remain eligible to participate in the Test Program, a business concern is required to have furnished supplies or services (including construction) under…
  • FAR 7.401 Acquisition considerations.
    …se; (iv) Net purchase price; (v) Transportation, installation, and storage costs; (vi) Maintenance, repair, and other service costs; and (vii) Potential obsolescence of the equipment because of imminent technological improvements. (2) …
  • FAR 9.110-3 Policy.
    …ce that prohibits or in effect prevents— (1) The Secretary of a military department from maintaining, establishing, or operating a unit of the Senior Reserve Officer Training Corps (ROTC) at that institution; (2) A student at that institu…
  • FAR 31.001 Definitions.
    … or their beneficiaries. Pension plan means a deferred compensation plan established and maintained by one or more employers to provide systematically for the payment of benefits to plan participants after their retirements, provided that …
  • FAR 31.203 Indirect costs.
    …determined and charged directly to the contract or other work, indirect costs are those remaining to be allocated to intermediate or two or more final cost objectives. No final cost objective shall have allocated to it as an indirect cost a…
  • FAR 31.205-11 Depreciation.
    …to cost, total estimated useful life at the time of negotiations, effect of any increased maintenance charges or decreased efficiency due to age, and the amount of depreciation previously charged to Government contracts or subcontracts. (g…
  • FAR 31.205-36 Rental costs.
    … ownership, such as depreciation, taxes, insurance, facilities capital cost of money, and maintenance (excluding interest or other unallowable costs pursuant to part 31), provided that no part of such costs shall duplicate any other allowed…
  • FAR 32.503-6 Suspension or reduction of payments.
    …t comply with all material requirements of the contract. This includes the requirement to maintain an efficient and reliable accounting system and controls, adequate for the proper administration of progress payments. If the system or contr…
  • FAR 52.209-14 Reserve Officer Training Corps and Military Recruiting on Campus.
    …d) that prohibits or in effect prevents— (1) The Secretary of a military department from maintaining, establishing, or operating a unit of the Senior Reserve Officer Training Corps (ROTC) at that institution (or any sub-element of that ins…
  • FAR 52.214-21 Descriptive Literature.
    …evaluate the acceptability of the product and excludes other information for operating or maintaining the product. (b) Descriptive literature is required to establish, for the purpose of evaluation and award, details of the product offered…
  • FAR 52.227-14 Rights in Data—General.
    …te manuals or instructional and training material for installation, operation, or routine maintenance and repair of items, components, or processes delivered or furnished for use under this contract; and (iv) All other data delivered under…
  • FAR 52.227-20 Rights in Data—SBIR Program.
    …te manuals or instructional and training material for installation, operation, or routine maintenance and repair of items, components, or processes delivered or furnished for use under this contract; and (iv) All other data delivered under…
  • DFARS 239.7401 Definitions.
    …pporting the long-haul service) to or from the post, camp, base, or station switch and/or main distribution frame (except for trunk lines to the first-serving commercial central office for local communications services). Noncommon carrier …
  • DFARS 252.247-7002 Revision of prices.
    … the Disputes clause of this contract. The prices fixed by the Contracting Officer will remain in effect for the balance of the contract, and the Contractor shall continue performance. (g) Retroactive changes in wages or working conditions…

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.