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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32 sections with “irrevocable”

  • FAR 52.228-14 Irrevocable Letter of Credit.
    As prescribed in 28.204-4, insert the following clause: Irrevocable Letter of Credit (NOV 2014) (a) “Irrevocable letter of credit” (ILC), as used in this clause, means a written commitment by a federally insured financial institution to p…
  • FAR 28.204-3 Irrevocable letter of credit.
    (a) Any person required to furnish a bond has the option to furnish a bond secured by an irrevocable letter of credit (ILC) in an amount equal to the penal sum required to be secured (see 28.204). A separate ILC is required for each bond. …
  • FAR 52.227-14 Rights in Data—General.
    …actor grants to the Government, and others acting on its behalf, a paid-up, nonexclusive, irrevocable, worldwide license in such copyrighted data to reproduce, prepare derivative works, distribute copies to the public, and perform publicly …
  • FAR 28.102-1 General.
    … of the following payment protections, giving particular consideration to inclusion of an irrevocable letter of credit as one of the selected alternatives: (i) A payment bond. (ii) An irrevocable letter of credit (ILC). (iii) A tripartit…
  • FAR 52.227-13 Patent Rights—Ownership by the Government.
    …actor has retained title. (iii) Upon request, the Contractor shall furnish the agency an irrevocable power to inspect and make copies of the patent application file. (c) Minimum rights acquired by the Government. (1) Regarding each subjec…
  • FAR 52.227-20 Rights in Data—SBIR Program.
    …ractor grants to the Government, and others acting on its behalf, a paid-up nonexclusive, irrevocable, worldwide license to reproduce, prepare derivative works, distribute copies to the public, and perform publicly and display publicly, by …
  • DFARS 252.227-7038 Patent Rights—Ownership by the Contractor (Large Business).
    …ship of any subject invention, the Government shall have a nonexclusive, nontransferable, irrevocable, paid-up license to practice, or have practiced for or on behalf of the United States, the subject invention throughout the world. (e) Co…
  • FAR 2.101 Definitions.
    …r the contract for supplies delivered or services performed (see also “proper invoice”). Irrevocable letter of credit means a written commitment by a federally insured financial institution to pay all or part of a stated amount of money, u…
  • FAR 27.302 Policy.
    …) Government license. The Government shall have at least a nonexclusive, nontransferable, irrevocable, paid-up license to practice, or have practiced for or on behalf of the United States, any subject invention throughout the world. The Gov…
  • FAR 27.303 Contract clauses.
    … request, copies of any patent application so identified. (iv) Furnish the Government an irrevocable power to inspect and make copies of the patent application file when a Government employee is a co-inventor. (3) Use the clause with its …
  • FAR 27.404-3 Copyrighted works.
    … of the clause at 52.227-14, the contractor grants the Government a paid-up nonexclusive, irrevocable, worldwide license to reproduce, prepare derivative works, distribute to the public, perform publicly and display publicly by or on behalf…
  • FAR 28.204-4 Contract clause.
    Insert the clause at 52.228-14, Irrevocable Letter of Credit, in solicitations and contracts for services, supplies, or construction, when a bid guarantee, or performance bonds, or performance and payment bonds are required.
  • FAR 32.202-4 Security for Government financing.
    …actor.” (d) Other forms of security. Other acceptable forms of security include— (1) An irrevocable letter of credit from a federally insured financial institution; (2) A bond from a surety, acceptable in accordance with part 28 (note th…
  • FAR 52.227-11 Patent Rights—Ownership by the Contractor.
    …ship of any subject invention, the Government shall have a nonexclusive, nontransferable, irrevocable, paid-up license to practice, or have practiced for or on its behalf, the subject invention throughout the world. (e) Contractor action t…
  • FAR 52.227-17 Rights in Data—Special Works.
    …actor grants to the Government, and others acting on its behalf, a paid-up, nonexclusive, irrevocable, worldwide license for all delivered data to reproduce, prepare derivative works, distribute copies to the public, and perform publicly an…
  • FAR 52.227-18 Rights in Data—Existing Works.
    …ractor grants to the Government, and others acting on its behalf, a paid-up nonexclusive, irrevocable, worldwide license to reproduce, prepare derivative works, and perform publicly and display publicly, by or on behalf of the Government, f…
  • FAR 52.228-1 Bid Guarantee.
    …eties acceptable to the Government, postal money order, certified check, cashier's check, irrevocable letter of credit, or, under Treasury Department regulations, certain bonds or notes of the United States. The Contracting Officer will ret…
  • FAR 52.228-2 Additional Bond Security.
    … sum of any bond becomes inadequate in the opinion of the Contracting Officer; or (d) An irrevocable letter of credit (ILC) used as security will expire before the end of the period of required security. If the Contractor does not furnish …
  • FAR 52.228-15 Performance and Payment Bonds—Construction.
    …y other acceptable security such as postal money order, certified check, cashier's check, irrevocable letter of credit, or, in accordance with Treasury Department regulations, certain bonds or notes of the United States. Treasury Circular 5…
  • FAR 52.228-16 Performance and Payment Bonds—Other Than Construction.
    …y other acceptable security such as postal money order, certified check, cashier's check, irrevocable letter of credit, or, in accordance with Treasury Department regulations, certain bonds or notes of the United States. Treasury Circular 5…
  • DFARS 227.7103-4 License rights.
    …The Government obtains rights in technical data, including a copyright license, under and irrevocable license granted or obtained for the Government by the contractor. The contractor or licensor retains all rights in the data not granted to…
  • DFARS 227.7105-2 Acquisition of existing works without modification.
    …-7021 provides the Government, and others acting on its behalf, a paid-up, non-exclusive, irrevocable, world-wide license to reproduce, prepare derivative works and publicly perform or display the works called for by a contract and to autho…
  • DFARS 227.7203-4 License rights.
    …uter software or computer software documentation, including a copyright license, under an irrevocable license granted or obtained by the contractor which developed the software or documentation or the licensor of the software or documentati…
  • DFARS 252.227-7004 License grant.
    …gnments: License Grant (AUG 1984) (a) The Contractor hereby grants to the Government an irrevocable, nonexclusive, nontransferable, and paid up license under the following patents, applications for patent, and any patents granted on such …
  • DFARS 252.227-7006 License grant—running royalty.
    …ractor hereby grants to the Government, as represented by the Secretary of __________, an irrevocable, nonexclusive, nontransferable license under the following patents, applications for patent, and any patents granted on such applications,…
  • DFARS 252.227-7013 Rights in Technical Data—Other Than Commercial Products and Commercial Services.
    …s or shall obtain for the Government the following royalty free, worldwide, nonexclusive, irrevocable license rights in technical data other than computer software documentation (see the DFARS 252.227-7014, Rights in Other Than Commercial C…
  • DFARS 252.227-7014 Rights in Other Than Commercial Computer Software and Other Than Commercial Computer Software Documentation.
    … or shall obtain for the Government the following royalty free, worldwide , nonexclusive, irrevocable license rights in other than commercial computer software or computer software documentation. All rights not granted to the Government are…
  • 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.
    …s or shall obtain for the Government the following royalty-free, worldwide, nonexclusive, irrevocable license rights in technical data or other than commercial computer software. All rights not granted to the Government are retained by the …
  • DFARS 252.227-7020 Rights in special works.
    …”. (3) The Contractor grants to the Government a royalty-free, world-wide, nonexclusive, irrevocable license to reproduce, prepare derivative works from, distribute, perform, or display, and to have or authorize others to do so, the Contra…
  • DFARS 252.227-7039 Patents—reporting of subject inventions.
    …tor has retained title. (d) Upon request, the Contractor shall furnish the Government an irrevocable power to inspect and make copies of the patent application file. (End of clause)
  • DFARS 252.232-7012 Performance-Based Payments—Whole-Contract Basis.
    …y in the contract, consistent with FAR 32.202-4: (A) A paramount lien on assets. (B) An irrevocable letter of credit from a federally insured financial institution. (C) A bond from a surety, acceptable in accordance with FAR part 28. (D…
  • DFARS 252.232-7013 Performance-Based Payments—Deliverable-Item Basis.
    …y in the contract, consistent with FAR 32.202-4: (A) A paramount lien on assets. (B) An irrevocable letter of credit from a federally insured financial institution. (C) A bond from a surety, acceptable in accordance with FAR part 28. (D…

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.