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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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170 sections with “Secretary of Defense”: the first 40

  • FAR 35.017-7 Limitation on the creation of new FFRDC's.
    Pursuant to 10 U.S.C. 4126, the Secretary of Defense, the Secretary of the Army, the Secretary of the Navy, the Secretary of the Air Force, the Secretary of Homeland Security, and the Administrator of the National Aeronautics and Space Admi…
  • FAR 52.209-14 Reserve Officer Training Corps and Military Recruiting on Campus.
    …f this clause, an institution of higher education is ineligible for contract award if the Secretary of Defense determines that the institution has a policy or practice (regardless of when implemented) that prohibits or in effect prevents— …
  • DFARS 252.225-7039 Defense Contractors Performing Private Security Functions Outside the United States.
    …ited States of— (1) Contingency operations; (2) Combat operations, as designated by the Secretary of Defense; (3) Other significant military operations (as defined in 32 CFR part 159), designated by the Secretary of Defense upon agreemen…
  • DFARS 252.204-7018 Prohibition on the Acquisition of Covered Defense Telecommunications Equipment or Services.
    … (3) Telecommunications equipment or services produced or provided by an entity that the Secretary of Defense reasonably believes to be an entity owned or controlled by, or otherwise connected to, the government of a covered foreign countr…
  • DFARS 252.223-7006 Prohibition on Storage, Treatment, and Disposal of Toxic or Hazardous Materials.
    …losive, flammable, or pyrotechnic nature; or (iii) Materials otherwise identified by the Secretary of Defense as specified in DoD regulations. (b) In accordance with 10 U.S.C. 2692, the Contractor is prohibited from storing, treating, or …
  • DFARS 252.225-7049 Prohibition on Acquisition of Certain Foreign Commercial Satellite Services—Representations.
    …or commercial satellite services may be awarded to— (1)(i) A foreign entity if the Under Secretary of Defense for Acquisition and Sustainment or the Under Secretary of Defense for Policy reasonably believes that— (A) The foreign entity is…
  • FAR 50.102-3 Limitations on exercise of authority.
    …10789 with respect to any supply or service that has been, or could be, designated by the Secretary of Homeland Security as a qualified anti-terrorism technology unless— (1) For the Department of Defense, the Secretary of Defense has deter…
  • DFARS 209.572 Conflicts of interest in certain consulting services.
    … of China. (ii) The government of the Russian Federation or any entity sanctioned by the Secretary of the Treasury under Executive Order 13662, Blocking Property of Additional Persons Contributing to the Situation in Ukraine. (iii) The go…
  • DFARS 252.209-7012 Prohibition Relating to Conflicts of Interest in Consulting Services—Certification.
    …c of China. (2) The government of the Russian Federation or any entity sanctioned by the Secretary of the Treasury under Executive Order 13662, Blocking Property of Additional Persons Contributing to the Situation in Ukraine. (3) The gove…
  • FAR 2.101 Definitions.
    …of “small business concern” in this section. Agency head or head of the agency means the Secretary, Attorney General, Administrator, Governor, Chairperson, or other chief official of an executive agency, unless otherwise indicated, includi…
  • FAR 6.302-7 Public interest.
    …ermination to use this authority shall be made in accordance with subpart 1.7, by (i) the Secretary of Defense, the Secretary of the Army, the Secretary of the Navy, the Secretary of the Air Force, the Secretary of Homeland Security for the…
  • FAR 9.110-3 Policy.
    …ered agency from providing funds by contract to an institution of higher education if the Secretary of Defense determines that the institution has a policy or practice that prohibits or in effect prevents— (1) The Secretary of a military d…
  • FAR 40.202-4 Exemptions.
    …Department of Defense, Department of State, and the Department of Justice exemptions. The Secretary of Homeland Security, the Secretary of Defense, the Secretary of State, and the Attorney General are exempt from the prohibitions in 40.202 …
  • FAR 52.225-26 Contractors Performing Private Security Functions Outside the United States.
    … clause— Area of combat operations means an area of operations designated as such by the Secretary of Defense when enhanced coordination of contractors performing private security functions working for Government agencies is required. Ful…
  • DFARS 202.101 Definitions.
    …of the Navy, and the Department of the Air Force. Head of the agency means, for DoD, the Secretary of Defense, the Secretary of the Army, the Secretary of the Navy, and the Secretary of the Air Force. Subject to the direction of the Secret…
  • DFARS 206.304 Approval of the justification.
    (a)(4) The Under Secretary of Defense (Acquisition and Sustainment) may delegate this authority to— (A) An Assistant Secretary of Defense; or (B) For a defense agency, an officer or employee serving in, assigned, or detailed to that agenc…
  • DFARS 209.104-1 General standards.
    …racting officer may seek advice from the Security Directorate, Office of the Deputy Under Secretary of Defense, Human Intelligence, Counterintelligence, and Security. (C) In accordance with 10 U.S.C. 4874(b)(1)(A), the Secretary of Defense…
  • DFARS 215.404-72 Modified weighted guidelines method for nonprofit organizations other than FFRDCs.
    …Code. (b) For nonprofit organizations that are entities that have been identified by the Secretary of Defense or a Secretary of a Department as receiving sustaining support on a cost-plus-fixed-fee basis from a particular DoD department or…
  • DFARS 217.172 Multiyear contracts for supplies.
    …). (e) The head of the agency shall not enter into a multiyear contract unless— (1) The Secretary of Defense has submitted to Congress a budget request for full funding of units to be procured through the contract; (2) In the case of a c…
  • DFARS 223.7104 Exceptions.
    …vailable, if such storage or disposal is made in accordance with an agreement between the Secretary of Defense and the head of the Federal, State, or local agency concerned. (4) The temporary storage or disposal of explosives in order to p…
  • DFARS 225.772-2 Prohibitions.
    …rd a contract for commercial satellite services to— (a)(1) A foreign entity if the Under Secretary of Defense for Acquisition and Sustainment or the Under Secretary of Defense for Policy reasonably believes that— (i) The foreign entity is…
  • DFARS 225.7002-2 Exceptions.
    …Forces (37 U.S.C. 418(b)(4)). (b) Acquisitions of any of the items in 225.7002-1, if the secretary concerned determines that items grown, reprocessed, reused, or produced in the United States cannot be acquired as and when needed in a sati…
  • DFARS 237.173-4 Waiver.
    The Secretary of Defense may waive the prohibition in 237.173-3(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 …
  • DFARS 239.7303 Authorized individuals.
    …following individuals are authorized to take the actions authorized by 239.7305: (1) The Secretary of Defense. (2) The Secretary of the Army. (3) The Secretary of the Navy. (4) The Secretary of the Air Force. (b) The individuals author…
  • DFARS 239.7304 Determination and notification.
    …ority provided in 239.7305 only after— (a) Obtaining a joint recommendation by the Under Secretary of Defense for Acquisition and Sustainment and the Chief Information Officer of the Department of Defense, on the basis of a risk assessment…
  • DFARS 243.107-70 Notification of substantial impact on employment.
    The Secretary of Defense is required to notify the Secretary of Labor if a modification of a major defense contract or subcontract will have a substantial impact on employment. The clause prescribed at 249.7003(c) requires that the contract…
  • DFARS 250.102-1 Delegation of authority.
    … the contracting activity. (d) In accordance with the acquisition authority of the Under Secretary of Defense (Acquisition and Sustainment (USD (A&S)) under 10 U.S.C. 133(b), in addition to the Secretary of Defense and the Secretaries of t…
  • DFARS 252.225-7050 Disclosure of Ownership or Control by the Government of a Country that is a State Sponsor of Terrorism.
    …the indebtedness of a firm. State sponsor of terrorism means a country determined by the Secretary of State, under section 1754(c)(1)(A)(i) of the Export Control Reform Act of 2018 (Title XVII, Subtitle B, of the National Defense Authoriza…
  • FAR 4.2303 FASCSA orders.
    …stablished by an applicable FASCSA order issued by the Director of National Intelligence, Secretary of Defense, or Secretary of Homeland Security (the “issuing official”)(see 41 CFR 201-1.304(a)). (b) If a covered article or the source is …
  • FAR 6.304 Approval of the justification.
    …e with agency procedures. This authority is not delegable except in the case of the Under Secretary of Defense for Acquisition and Sustainment, acting as the senior procurement executive for the Department of Defense. (b) Any justification…
  • FAR 25.302-3 Applicability.
    …ance outside the United States— (1) In an area of combat operations as designated by the Secretary of Defense; or (2) In an area of other significant military operations as designated by the Secretary of Defense, and only upon agreement o…
  • FAR 25.302-6 Contract clause.
    …nce outside the United States in an area of— (1) Combat operations, as designated by the Secretary of Defense; or (2) Other significant military operations, as designated by the Secretary of Defense and only upon agreement of the Secretar…
  • DFARS 204.2104 Waivers.
    The Secretary of Defense may waive the prohibition in 204.2102(a) on a case-by-case basis 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) C…
  • DFARS 205.303 Announcement of contract awards.
    …partments and agencies submit the information— (A) To the Office of the Assistant to the Secretary of Defense for Public Affairs; (B) By the close of business the day before the date of the proposed award; (C) Using report control symbol…
  • DFARS 209.170-3 Waiver of restriction.
    The restriction in 209.170-2 can be waived by the Office of the Under Secretary of Defense (Research and Engineering), without power of delegation, in accordance with the Confucius Institute Waiver Program guidance. The waiver authority ter…
  • DFARS 213.270 Use of the Governmentwide commercial purchase card.
    …cy applies to all types of contract actions authorized by the FAR unless— (a) The Deputy Secretary of Defense has approved an exception for an electronic commerce/electronic data interchange system or operational requirement that results i…
  • DFARS 222.7404 Waiver.
    (a) The Secretary of Defense may waive, in accordance with paragraphs (b) through (d) of this section, the applicability of paragraphs (a) or (b) of 222.7402 to a particular contract or subcontract, if the Secretary or the Deputy Secretary …
  • DFARS 225.302-6 Contract clause.
    …ited States in— (1) Contingency operations; (2) Combat operations, as designated by the Secretary of Defense; (3) Other significant military operations (as defined in 32 CFR part 159), designated by the Secretary of Defense, and only upo…
  • DFARS 225.770-5 Waiver of prohibition.
    …, to make the determination specified in paragraph (a) of this subsection: (1) The Under Secretary of Defense (Acquisition and Sustainment). (2) The Secretaries of the military departments. (3) The Component Acquisition Executive of the …
  • DFARS 225.771-4 Waiver of prohibition.
    The prohibition in 225.771-2 may be waived if the Secretary of Defense determines that a waiver is not inconsistent with the national security objectives of the United States in accordance with 10 U.S.C. 4871(c).

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.