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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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70 sections with “national security interest”: the first 40

  • DFARS 225.7021-3 National security waiver of disclosure.
    …s at 225.7021-2 if the SPE determines in writing that such disclosure would not be in the national security interests of the United States. This authority may not be delegated. See PGI 225.7021-3 for procedures and content requirements rega…
  • FAR 52.204-28 Federal Acquisition Supply Chain Security Act Orders—Federal Supply Schedules, Governmentwide Acquisition Contracts, and Multi-Agency Contracts.
    …tary of Defense may issue FASCSA orders applicable to the Department of Defense (DoD) and national security systems other than sensitive compartmented information systems. This type of FASCSA order may be referred to as a DoD FASCSA order. …
  • FAR 52.204-30 Federal Acquisition Supply Chain Security Act Orders—Prohibition.
    …tary of Defense may issue FASCSA orders applicable to the Department of Defense (DoD) and national security systems other than sensitive compartmented information systems. This type of FASCSA order may be referred to as a DoD FASCSA order. …
  • DFARS 209.572 Conflicts of interest in certain consulting services.
    (a) Scope. (1) This section implements section 812 of the National Defense Authorization Act for Fiscal Year 2024 (Pub. L. 118-31). (2) To the extent that this section is inconsistent with FAR subpart 9.5, this section takes precedence. (…
  • FAR 4.2104 Waivers.
    …pply chain risk information; (iii) Notify and consult with the Office of the Director of National Intelligence (ODNI) on the waiver request using ODNI guidance, briefings, best practices, or direct inquiry, as appropriate; and (iv) Notify…
  • FAR 25.703-4 Waiver.
    …he class of supplies or equipment is not available from any other source and it is in the national interest. (2) Prior to submitting the waiver request, the request must be reviewed and cleared by the agency head. (c) In general, all waiv…
  • DFARS 209.104-1 General standards.
    …is required to perform the contract. (A) Under 10 U.S.C. 4874(a), no DoD contract under a national security program may be awarded to an entity controlled by a foreign government if that entity requires access to proscribed information to p…
  • DFARS 225.7003-3 Exceptions.
    …rmines that the domestic availability of a particular electronic component is critical to national security. (2)(i) Commercially available off-the-shelf (COTS) items containing specialty metals, except the restrictions do apply to contract…
  • DFARS 225.7004-6 Waiver of restrictions.
    …ments on a timely basis; and (ii) The acquisition is necessary to acquire capability for national security purposes. (2) Document the waiver in a written determination and findings containing— (i) The factors supporting the waiver; and …
  • DFARS 225.772-4 Exception.
    …retary of Defense for Policy, without power of redelegation, determines that it is in the national security interest of the United States to enter into such contract; and (2) Not later than seven days before entering into such contract, th…
  • DFARS 252.209-7012 Prohibition Relating to Conflicts of Interest in Consulting Services—Certification.
    …of State determines that such government has repeatedly provided support for acts of international terrorism, pursuant to any of the following: (i) Section 1754(c)(1)(A) of the Export Control Reform Act of 2018 (50 U.S.C. 4318(c)(1)(A)). …
  • DFARS 252.239-7016 Telecommunications security equipment, devices, techniques, and services.
    …, misuse, or modification of which, or unauthorized access to, could adversely affect the national interest or the conduct of Federal programs, or the privacy to which individuals are entitled under 5 U.S.C. 552a (the Privacy Act), but whic…
  • FAR 2.101 Definitions.
    … protected against unauthorized disclosure according to Executive Order 12958, Classified National Security Information, April 17, 1995, or classified in accordance with the Atomic Energy Act of 1954. Cognizant Federal agency means the Fed…
  • FAR 4.2301 Definitions.
    …tary of Defense may issue FASCSA orders applicable to the Department of Defense (DoD) and national security systems other than sensitive compartmented information systems. This type of FASCSA order may be referred to as a DoD FASCSA order. …
  • FAR 25.702-4 Waiver.
    …es and certifies in writing to the appropriate congressional committees that it is in the national interest to do so. (b) An agency seeking waiver of the requirement shall submit the request to the Administrator of the Office of Federal Pr…
  • FAR 40.202-4 Exemptions.
    …exempt from the prohibitions in 40.202 if the procurement or operation is required in the national interest of the United States and— (1) Is for the sole purposes of research, evaluation, training, testing, or analysis for electronic warfa…
  • FAR 52.212-5 Contract Terms and Conditions Required To Implement Statutes or Executive Orders—Commercial Products and Commercial Services.
    …(JUN 2020) (38 U.S.C. 4212). __(38) 52.222-40, Notification of Employee Rights Under the National Labor Relations Act (DEC 2010) (E.O. 13496). __(39)(i) 52.222-50, Combating Trafficking in Persons (OCT 2025) (22 U.S.C. chapter 78 and E.O.…
  • DFARS 212.301 Solicitation provisions and contract clauses for the acquisition of commercial products and commercial services.
    …of Former DoD Officials, as prescribed in 203.171-4(a), to comply with section 847 of the National Defense Authorization Act for Fiscal Year 2008 (Pub. L. 110-181). (C) Use the clause at 252.203-7002, Requirement to Inform Employees of Whi…
  • DFARS 252.225-7040 Contractor Personnel Supporting U.S. Armed Forces Deployed Outside the United States.
    …ough a letter of authorization. CAAF generally include all U.S. citizen and third-country national employees not normally residing within the operational area whose area of performance is in the direct vicinity of U.S. Armed Forces and who …
  • FAR 4.2305 Waivers.
    …ncy's ability to fulfill its mission-critical functions, or considerations related to the national interest, including national security reviews, national security investigations, or national security agreements; (5) Any alternative mitiga…
  • FAR 6.302-7 Public interest.
    …orce, the Secretary of Homeland Security for the Coast Guard, or the Administrator of the National Aeronautics and Space Administration; or (ii) the head of any other executive agency. This authority may not be delegated. (2) The Congress …
  • FAR 22.807 Exemptions.
    …he requirements of E.O. 11246 may be excluded from a contract subject to E.O. 11246: (1) National security. The agency head may determine that a contract is essential to the national security and that the award of the contract without comp…
  • FAR 22.1305 Waivers.
    …t 52.222-35, Equal Opportunity for Veterans, for— (1) Any contract if a waiver is in the national interest; or (2) Groups or categories of contracts if a waiver is in the national interest and it is— (i) Impracticable to act on each requ…
  • FAR 22.1403 Waivers.
    … for Workers with Disabilities, for— (1) Any contract if a waiver is deemed to be in the national interest; or (2) Groups or categories of contracts if a waiver is in the national interest and it is— (i) Impracticable to act on each requ…
  • FAR 27.303 Contract clauses.
    …fy Alternate I, if the agency head determines, at contract award, that it would be in the national interest to sublicense foreign governments or international organizations pursuant to any existing or future treaty or agreement. When necess…
  • DFARS 222.7404 Waiver.
    … the Deputy Secretary personally determines that the waiver is necessary to avoid harm to national security interests of the United States, and that the term of the contract or subcontract is not longer than necessary to avoid such harm. (…
  • DFARS 237.173-4 Waiver.
    …3-3(a) for a period of 60 days, if the Secretary determines such a waiver is vital to the national security interests of the United States. The Secretary may renew a waiver issued pursuant to this paragraph for an additional 30-day period, …
  • DFARS 252.227-7013 Rights in Technical Data—Other Than Commercial Products and Commercial Services.
    …which the United States Government is a party, including cooperative agreements with international or multi-national defense organizations, or sales or transfers by the United States Government to foreign governments or international organi…
  • DFARS 252.227-7014 Rights in Other Than Commercial Computer Software and Other Than Commercial Computer Software Documentation.
    …which the United States Government is a party, including cooperative agreements with international or multi-national defense organizations or sales or transfers by the United States Government to foreign governments or international organiz…
  • FAR 23.106 Exemptions.
    (a) The Director of National Intelligence may exempt an intelligence activity of the United States and related personnel, resources, and facilities to the extent the Director determines necessary to protect intelligence sources and methods …
  • DFARS 204.2104 Waivers.
    …for a single, one-year period, if the Secretary— (a) Determines such waiver to be in the national security interests of the United States; and (b) Certifies to the Congressional defense committees that— (1) There are sufficient mitigatio…
  • DFARS 217.7505 Limitations on price increases.
    …ice of the part and concluded that the price increase is fair and reasonable; or (2) The national security interests of the United States require purchase of the part despite the price increase. (c) The fact that a particular price has no…
  • DFARS 223.7104 Exceptions.
    …ation for the benefit of DoD. (2) The storage of strategic and critical materials in the National Defense Stockpile under an agreement for such storage with the Administrator of General Services Administration. (3) The temporary storage o…
  • DFARS 225.772-1 Definitions.
    …strates that a majority of the equity interest in such entity is ultimately owned by U.S. nationals is not a foreign entity. (31 CFR 800.212) Government of a covered foreign country includes the state and the government of a covered foreig…
  • DFARS 225.872-8 Subcontracting with qualifying country sources.
    …ude qualifying country sources from competing for subcontracts, except when restricted by national security interest reasons, mobilization base considerations, or applicable U.S. laws or regulations (see the clause at 252.225-7002, Qualifyi…
  • DFARS 225.7018-4 Nonavailability determination.
    …ill, to the maximum extent practicable, and in a manner consistent with the protection of national security and confidential business information— (i) Publish a notice in the GPE (https://www.sam.gov) of the intent to make the nonavailabil…
  • DFARS 225.7020-4 Joint determination.
    …ifesaving measures; or (iii) Carrying out noncombatant evacuations; or (2) Vital to the national security interests of the United States. (b) Follow the procedures at PGI 225.7020-4(b) when entering into a contract on the basis of a join…
  • DFARS 225.7604 Waivers.
    The Secretary of Defense may waive this restriction on the basis of national security interests. To request a waiver, follow the procedures at PGI 225.7604.
  • DFARS 225.7703-2 Determination requirements.
    …cified in paragraph (b)(2) of this subsection must determine in writing that it is in the national security interest of the United States to use a procedure specified in 225.7703-1(a), because— (i) The procedure is necessary to provide a s…
  • DFARS 239.7301 Definitions.
    …in a supply chain risk for a covered system (see 10 U.S.C. 3252). Covered system means a national security system, as that term is defined at 44 U.S.C. 3552(b) (see 10 U.S.C. 3252). It is any information system, including any telecommunica…

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.