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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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18 sections with “national security interests”

  • 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 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 …
  • 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…
  • 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. (…
  • 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 …
  • 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 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 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.
  • FAR 52.245-1 Government Property.
    …roperty Administrator, contain the following: (1) The name, part number and description, National Stock Number (if needed for additional item identification tracking and/or disposition), and other data elements as necessary and required in…
  • DFARS 225.7705-2 Waiver of prohibition.
    …) of this section, that— (1) The program or project clearly contributes to United States national interests or strategic objectives; (2) The Government of Afghanistan has requested or expressed a need for the program or project; (3) The …
  • FAR 27.203-1 General.
    …—Espionage and Censorship), and related statutes, and may be contrary to the interests of national security. (b) Upon receipt of a patent application under paragraph (a) or (b) of the clause at 52.227-10, Filing of Patent Applications—Clas…

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.