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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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81 sections with “notice to proceed”: the first 40

  • FAR 49.104 Duties of prime contractor after receipt of notice of termination.
    After receipt of the notice of termination, the contractor shall comply with the notice and the termination clause of the contract, except as otherwise directed by the TCO. The notice and clause applicable to convenience terminations genera…
  • FAR 33.104 Protests to GAO.
    …ete copy of the protest within 1 day. (2) Immediately after receipt of the GAO's written notice that a protest has been filed, the agency shall give notice of the protest to the contractor if the award has been made, or, if no award has be…
  • FAR 49.601-2 Letter notice.
    The following letter notice of termination is suggested for use if a contract for supplies is being terminated for convenience. With appropriate modifications, it may be used in terminating contracts for other than supplies and in terminati…
  • FAR 52.222-55 Minimum Wages for Contractor Workers Under Executive Order 14026.
    …cable E.O. minimum wage on https://www.sam.gov (or any successor Web site), and a general notice on all wage determinations issued under the Service Contract Labor Standards statute or the Wage Rate Requirements (Construction) statute, that…
  • FAR 52.237-5 Payment by Contractor to Government.
    …ent. The title shall vest in the Contractor immediately upon the Government's issuing the notice of award, or if a performance bond is to be furnished, upon the Government's issuing a notice to proceed with the work. The Government shall no…
  • FAR 4.803 Contents of contract files.
    …other restrictions. (24) Required approvals of award and evidence of legal review. (25) Notice of award. (26) The original of— (i) The signed contract or award; (ii) All contract modifications; and (iii) Documents supporting modificat…
  • FAR 11.404 Contract clauses.
    …dar dates or specific periods and is based on an assumed date the contractor will receive notice of award, the contracting officer may use the clause with its Alternate II. If the delivery schedule is to be based on the actual date the cont…
  • FAR 36.213-4 Notice of award.
    When a notice of award is issued, it shall be done in writing or electronically, shall contain information required by 14.408, and shall— (a) Identify the invitation for bids; (b) Identify the contractor's bid; (c) State the award price;…
  • FAR 52.211-10 Commencement, Prosecution, and Completion of Work.
    …ntracting Officer insert number] calendar days after the date the Contractor receives the notice to proceed, (b) prosecute the work diligently, and (c) complete the entire work ready for use not later than __*. The time stated for completio…
  • FAR 52.237-4 Payment by Government to Contractor.
    …ent. The title shall vest in the Contractor immediately upon the Government's issuing the notice of award, or if a performance bond is to be furnished after award, upon the Government's issuance of a notice to proceed with the work. The Gov…
  • DFARS 252.227-7038 Patent Rights—Ownership by the Contractor (Large Business).
    …revoking or modifying the license, the agency— (A) Will furnish the Contractor a written notice of its intention to revoke or modify the license; and (B) Will allow the Contractor 30 days (or such other time as the funding agency may auth…
  • FAR 2.101 Definitions.
    …ute when submitted is not a claim. The submission may be converted to a claim, by written notice to the contracting officer as provided in 33.206(a), if it is disputed either as to liability or amount or is not acted upon in a reasonable ti…
  • FAR 5.203 Publicizing and response time.
    Whenever agencies are required to publicize notice of proposed contract actions under 5.201, they must proceed as follows: (a) An agency must transmit a notice of proposed contract action to the GPE (see 5.201). All publicizing and respons…
  • FAR 9.406-3 Procedures.
    …gh appropriate technology; if so, the suspending and debarring official should change the notice in paragraph (c)(3)(iv) of this section to include those flexible procedures. (2) In actions not based upon a conviction or civil judgment, if…
  • FAR 9.407-3 Procedures.
    …ocedures in 9.406-3(b)(1); if so, the suspending and debarring official should change the notice in paragraph (c)(5) of this section to include those flexible procedures. (2) In actions not based on an indictment, if it is found that the c…
  • FAR 49.402-3 Procedure for default.
    …proposed action. (b) The administrative contracting officer shall not issue a show cause notice or cure notice without the prior approval of the contracting office, which should be obtained by the most expeditious means. (c) Subdivision (…
  • FAR 52.212-4 Contract Terms and Conditions—Commercial Products and Commercial Services.
    …hall remedy such occurrence with all reasonable dispatch, and shall promptly give written notice to the Contracting Officer of the cessation of such occurrence. (g) Invoice. (1) The Contractor shall submit an original invoice and three cop…
  • FAR 52.222-62 Paid Sick Leave Under Executive Order 13706.
    …orming any other person about his or her rights under E.O. 13706 and 29 CFR part 13. (k) Notice. The Contractor shall notify all employees performing work on or in connection with a contract covered by the E.O. of the paid sick leave requi…
  • FAR 52.227-14 Rights in Data—General.
    …ns the rights of the Government in limited rights data as set forth in the Limited Rights Notice of paragraph (g)(3) if included in this clause. Limited rights data means data, other than computer software, that embody trade secrets or are…
  • FAR 52.227-20 Rights in Data—SBIR Program.
    …o the Government. SBIR rights means the rights in SBIR data set forth in the SBIR Rights Notice of paragraph (d) of this clause. Technical data means recorded information (regardless of the form or method of the recording) of a scientific…
  • FAR 52.232-12 Advance Payments.
    …. (k) Default. (1) If any of the following events occurs, the Government may, by written notice to the Contractor, withhold further withdrawals from the special account and further payments on this contract: (i) Termination of this contra…
  • FAR 52.232-27 Prompt Payment for Construction Contracts.
    …al to whom payment is to be sent (must be the same as that in the contract or in a proper notice of assignment). (vii) Name (where practicable), title, phone number, and mailing address of person to notify in the event of a defective invoi…
  • FAR 52.243-1 Changes—Fixed-Price.
    …ce (AUG 1987) (a) The Contracting Officer may at any time, by written order, and without notice to the sureties, if any, make changes within the general scope of this contract in any one or more of the following: (2) Drawings, designs, or…
  • FAR 52.246-17 Warranty of Supplies of a Noncomplex Nature.
    … (c) Remedies available to the Government. (1) The Contracting Officer shall give written notice to the Contractor of any breach of warranties in paragraph (b)(1) of this clause within ____ [Contracting Officer shall insert specific period …
  • FAR 52.246-19 Warranty of Systems and Equipment under Performance Specifications or Design Criteria.
    …iting, within ____ [Contracting Officer shall insert the specific period of time in which notice shall be given to the Contractor; e.g., 30 days after delivery of the nonconforming supplies; 90 days of the last delivery under this contract;…
  • DFARS 252.245-7005 Management and Reporting of Government Property.
    …ification to the Contractor. The electronic acceptance is equivalent to the DD Form 1637, Notice of Acceptance of Inventory. (f) Demilitarization, mutilation, and destruction. If demilitarization, mutilation, or destruction of contractor i…
  • FAR 52.222-26 Equal Opportunity.
    …shall post in conspicuous places available to employees and applicants for employment the notices to be provided by the Contracting Officer that explain this clause. (4) The Contractor shall, in all solicitations or advertisements for empl…
  • FAR 52.237-6 Incremental Payment by Contractor to Government.
    …or shall perform the work called for under this contract and within __ days of receipt of notice of award, unless otherwise provided in the Schedule, and before proceeding with the work, shall pay ____ [fill in amount]. Thereafter, the Cont…
  • FAR 52.243-2 Changes—Cost-Reimbursement.
    …nt (AUG 1987) (a) The Contracting Officer may at any time, by written order, and without notice to the sureties, if any, make changes within the general scope of this contract in any one or more of the following: (1) Drawings, designs, or…
  • FAR 52.248-3 Value Engineering—Construction.
    … though an agreement on price reduction has not been reached, by issuing the Contractor a notice to proceed with the change. Until a notice to proceed is issued or a contract modification applies a VECP to this contract, the Contractor shal…
  • FAR 52.249-3 Termination for Convenience of the Government (Dismantling, Demolition, or Removal of Improvements).
    …ent's interest. The Contracting Officer shall terminate by delivering to the Contractor a Notice of Termination specifying the extent of termination and the effective date. Upon receipt of the notice, if title to property is vested in the C…
  • FAR 52.249-6 Termination (Cost-Reimbursement).
    …the default within 10 days (unless extended by the Contracting Officer) after receiving a notice specifying the default. Default includes failure to make progress in the work so as to endanger performance. (b) The Contracting Officer shall…
  • DFARS 252.209-7012 Prohibition Relating to Conflicts of Interest in Consulting Services—Certification.
    …fferor or its subsidiaries or affiliates will submit to the contract oversight entities a notice of an unmitigated conflict of interest with respect to a covered contract within 15 days of determining that such a conflict has arisen. (2) T…
  • DFARS 252.228-7006 Compliance with Spanish Laws and Insurance.
    …g Officer, prior to commencement of work and not later than 15 days after the date of the Notice to Proceed, that the Contractor has obtained the required types of insurance in the following minimum amounts. The representation also shall st…
  • FAR 9.406-2 Causes for debarment.
    … collection action is precluded. (B) Examples. (1) The taxpayer has received a statutory notice of deficiency, under I.R.C. § 6212, which entitles the taxpayer to seek Tax Court review of a proposed tax deficiency. This is not a delinquent…
  • FAR 28.102-1 General.
    …ve payment protection, including any necessary reinsurance agreements, before receiving a notice to proceed with the work or being allowed to start work.
  • FAR 28.103-1 General.
    … in 28.103-2 and 28.103-3. (b) The contractor shall furnish all bonds before receiving a notice to proceed with the work. (c) No bond shall be required after the contract has been awarded if it was not specifically required in the contrac…
  • FAR 52.245-1 Government Property.
    …ment shall be at the Contractor's expense. (3)(i) The Contracting Officer may by written notice, at any time— (A) Increase or decrease the amount of Government-furnished property under this contract; (B) Substitute other Government-furni…
  • FAR 52.249-2 Termination for Convenience of the Government (Fixed-Price).
    …ent's interest. The Contracting Officer shall terminate by delivering to the Contractor a Notice of Termination specifying the extent of termination and the effective date. (b) After receipt of a Notice of Termination, and except as direct…
  • FAR 52.249-5 Termination for Convenience of the Government (Educational and Other Nonprofit Institutions).
    …ent's interest. The Contracting Officer shall terminate by delivering to the Contractor a Notice of Termination specifying the extent of termination and the effective date. (b) After receipt of a Notice of Termination and except as directe…

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.