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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9 sections with “unusually hazardous or nuclear”

  • FAR 50.104-3 Special procedures for unusually hazardous or nuclear risks.
    …Indemnification requests. (1) Contractor requests for the indemnification clause to cover unusually hazardous or nuclear risks should be submitted to the contracting officer and shall include the following information: (i) Identification o…
  • DFARS 250.104-3 Special procedures for unusually hazardous or nuclear risks.
  • FAR 50.102-1 Delegation of authority.
    …justify such delegation. (d) Regardless of dollar amount, authority to indemnify against unusually hazardous or nuclear risks, including extension of such indemnification to subcontracts, shall be exercised only by the Secretary or Adminis…
  • DFARS 250.102-1 Delegation of authority.
    …s of the military departments, the USD (A&S ) may exercise authority to indemnify against unusually hazardous or nuclear risks.
  • FAR 52.250-1 Indemnification Under Public Law 85-804.
    …aim, loss, or damage (1) arises out of or results from a risk defined in this contract as unusually hazardous or nuclear and (2) is not compensated for by insurance or otherwise. Any such claim, loss, or damage, to the extent that it is wit…
  • FAR 28.308 Self-insurance.
    …gram of self-insurance for catastrophic risks (e.g., see 50.104-3, Special procedures for unusually hazardous or nuclear risks). Should performance of Government contracts create the risk of catastrophic losses, the Government may, to the e…
  • FAR 50.104-4 Contract clause.
    …enever the approving official determines that the contractor shall be indemnified against unusually hazardous or nuclear risks (also see 50.104-3(b)(3)). In cost-reimbursement contracts, the contracting officer shall use the clause with its…
  • DFARS 250.102-1-70 Delegations.
    …must be submitted to the USD(A&S) for approval. (2) Requests for indemnification against unusually hazardous or nuclear risks must be submitted to the USD(A&S) for approval before using the indemnification clause at FAR 52.250-1, Indemnifi…
  • FAR 52.216-10 Incentive Fee.
    …use; or (vi) Any claim, loss, or damage resulting from a risk defined in the contract as unusually hazardous or as a nuclear risk and against which the Government has expressly agreed to indemnify the Contractor. (5) All other allowable 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.