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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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61 sections with “working day”: the first 40

  • DFARS 215.404-71-3 Contract type risk and working capital adjustment.
    …s on the degree of cost risk accepted by the contractor under varying contract types. The working capital adjustment is an adjustment added to the profit objective for contract type risk. It only applies to fixed-price contracts that provid…
  • FAR 19.502-8 Rejecting Small Business Administration recommendations.
    …the SBA, written notice shall be furnished to the appropriate SBA representative within 5 working days of the contracting officer's receipt of the recommendation. (b) The SBA PCR (or, if a PCR is not assigned, see 19.402(a)) may appeal the…
  • FAR 19.804-3 SBA acceptance.
    …accept the requirement will be transmitted to the contracting office in writing within 10 working days of receipt of the offer if the contract is likely to exceed the simplified acquisition threshold and within two working days of receipt i…
  • FAR 3.801 Definitions.
    … Federal contract, an officer or employee who is employed by such person for at least 130 working days within 1 year immediately preceding the date of the submission that initiates agency consideration of such person for receipt of such con…
  • FAR 19.1405 Set-aside procedures.
    …r representative shall notify the contracting officer, in writing, of its intent within 5 working days of receiving the contracting officer's notice of rejection. Upon receipt of notice of SBA's intent to appeal, the contracting officer sha…
  • FAR 31.205-6 Compensation for personal services.
    …) Payments to union employees for the difference in their past and current wage rates for working without a contract or labor agreement during labor management negotiation are allowable. (3) Payments to nonunion employees based upon result…
  • FAR 52.203-12 Limitation on Payments to Influence Certain Federal Transactions.
    … Federal contract, an officer or employee who is employed by such person for at least 130 working days within 1 year immediately preceding the date of the submission that initiates agency consideration of such person for receipt of such con…
  • FAR 9.404 Exclusions in the System for Award Management.
    …the agency— (i) Enter the information required by paragraph (b) of this section within 3 working days after the action becomes effective; (ii) Determine whether it is legally permitted to enter the SSN, EIN, or other TIN, under agency aut…
  • FAR 9.406-3 Procedures.
    …mentation reflecting the administrative agreement. The submission should be made within 3 working days. (3) With regard to information that may be covered by a disclosure exemption under the Freedom of Information Act, the suspending and d…
  • FAR 9.407-3 Procedures.
    …mentation reflecting the administrative agreement. The submission should be made within 3 working days. (3) With regard to information that may be covered by a disclosure exemption under the Freedom of Information Act, the suspending and d…
  • FAR 11.403 Supplies or services.
    …delivery schedule based on the date of contract receipt or notice of award, by adding one working day. (The term “working day” excludes weekends and U.S. Federal holidays.) If the offered delivery date computed with mailing or transmittal t…
  • FAR 19.707 The Small Business Administration's role in carrying out the program.
    …ing out their responsibilities with regard to subcontracting plans; (2) Review (within 5 working days) any solicitation that meets the dollar threshold in 19.702(a)(1)(i) or (ii) before the solicitation is issued; (3) Review (within 5 wor…
  • FAR 19.810 SBA appeals.
    …t to appeal to the agency head— (i) Must be received by the contracting officer within 5 working days after SBA is formally notified of the contracting officer's decision; and (ii) Must be provided to the contracting agency Director for t…
  • FAR 26.103 Procedures.
    …(c) The BIA will acknowledge receipt of the request from the contracting officer within 5 working days. Within 45 additional working days, BIA will advise the contracting officer, in writing, of its determination. (d) The contracting offic…
  • FAR 32.906 Making payments.
    …y, or legal holiday when Government offices are closed, may make payment on the following working day without incurring a late payment interest penalty. (4) When it is determined that the designated billing office erroneously rejected a pr…
  • FAR 52.211-8 Time of Delivery.
    …g (1) five calendar days for delivery of the award through the ordinary mails, or (2) one working day if the solicitation states that the contract or notice of award will be transmitted electronically. (The term working day excludes weekend…
  • FAR 52.211-9 Desired and Required Time of Delivery.
    …g (1) five calendar days for delivery of the award through the ordinary mails, or (2) one working day if the solicitation states that the contract or notice of award will be transmitted electronically. (The term working day excludes weekend…
  • FAR 52.215-1 Instructions to Offerors—Competitive Acquisition.
    …day falls on a Saturday, Sunday, or legal holiday, then the period shall include the next working day. (b) Amendments to solicitations. If this solicitation is amended, all terms and conditions that are not amended remain unchanged. Offero…
  • FAR 52.222-54 Employment Eligibility Verification.
    …itiate verification of employment eligibility of all new hires of the Contractor, who are working in the United States, whether or not assigned to the contract, within 3 business days after the date of hire (but see paragraph (b)(3) of this…
  • FAR 52.247-64 Preference for Privately Owned U.S.-Flag Commercial Vessels.
    …e Contractor. (2) The Contractor shall furnish these bill of lading copies (i) within 20 working days of the date of loading for shipments originating in the United States, or (ii) within 30 working days for shipments originating outside t…
  • DFARS 252.219-7011 Notification to delay performance.
    … (JUN 1998) The Contractor shall not begin performance under this purchase order until 2 working days have passed from the date of its receipt. Unless the Contractor receives notification from the Small Business Administration that it is i…
  • FAR 4.201 Procedures.
    Contracting officers shall distribute copies of contracts or modifications within 10 working days after execution by all parties. As a minimum, the contracting officer shall— (a) Distribute simultaneously one signed copy or reproduction of…
  • FAR 9.105-2 Determinations and documentation.
    …petency. (ii) The contracting officer is responsible for the timely submission, within 3 working days, and sufficiency, and accuracy of the documentation regarding the nonresponsibility determination. (iii) As required by section 3010 of …
  • FAR 9.106-2 Requests for preaward surveys.
    … be consistent with the scope of the survey requested and normally shall allow at least 7 working days to conduct the survey; and (e) When appropriate, limit the scope of the survey.
  • FAR 14.304 Submission, modification, and withdrawal of bids.
    … the initial point of entry to the Government infrastructure not later than 5:00 p.m. one working day prior to the date specified for receipt of bids; or (ii) There is acceptable evidence to establish that it was received at the Government…
  • FAR 15.208 Submission, modification, revision, and withdrawal of proposals.
    … the initial point of entry to the Government infrastructure not later than 5:00 p.m. one working day prior to the date specified for receipt of proposals; or (ii) There is acceptable evidence to establish that it was received at the Gover…
  • FAR 19.704 Subcontracting plan requirements.
    … Government contracts in effect during that period; (2) Submit a new commercial plan, 30 working days before the end of the Contractor's fiscal year, to the contracting officer responsible for the uncompleted Government contract with the l…
  • FAR 19.705-7 Compliance with the subcontracting plan.
    …ractor may have to pay to the Government liquidated damages, and providing a period of 15 working days (or longer period as necessary) within which to respond. The notice shall give the contractor an opportunity to demonstrate what good fai…
  • FAR 19.805-2 Procedures.
    …eligibility of the apparent successful offeror and advise the contracting office within 5 working days after receipt of the contracting office's request for an eligibility determination. (i) If SBA determines that the apparent successful o…
  • FAR 19.806 Pricing the 8(a) contract.
    …ng officer shall make available the data used to estimate the fair market price within 10 working days. (d) The negotiated contract price and the estimated fair market price are subject to the concurrence of the SBA. In the event of a disa…
  • FAR 19.811-1 Sole source.
    … any subsequent bilateral modification, to the contracting officer within a maximum of 10 working days. (c) Except in procurements where the SBA will make advance payments to its 8(a) contractor, the agency contracting officer may, as an a…
  • FAR 22.804-2 Construction.
    …(c) Contracting officers shall give written notice to the OFCCP regional office within 10 working days of award of a construction contract subject to these affirmative action requirements. The notification shall include the name, address, a…
  • FAR 32.905 Payment documentation and process.
    …ving report or other Government documentation to the designated payment office by the 5th working day after Government acceptance or approval, unless other arrangements have been made. This period of time does not extend the due dates presc…
  • FAR 52.212-1 Instructions to Offerors—Commercial Products and Commercial Services.
    … the initial point of entry to the Government infrastructure not later than 5:00 p.m. one working day prior to the date specified for receipt of offers; or (B) There is acceptable evidence to establish that it was received at the Governmen…
  • FAR 52.214-7 Late submissions, modifications, and withdrawals of bids.
    … the initial point of entry to the Government infrastructure not later than 5:00 p.m. one working day prior to the date specified for receipt of bids; or (ii) There is acceptable evidence to establish that it was received at the Government…
  • FAR 52.214-23 Late submissions, modifications, revisions, and withdrawals of technical proposals under two-step sealed bidding.
    … the initial point of entry to the Government infrastructure not later than 5:00 p.m. one working day prior to the date specified for receipt of proposals; or (ii) There is acceptable evidence to establish that it was received at the Gover…
  • FAR 52.222-23 Notice of Requirement for Affirmative Action To Ensure Equal Employment Opportunity for Construction.
    … Assistant Secretary for Federal Contract Compliance, U.S. Department of Labor, within 10 working days following award of any construction subcontract in excess of $10,000 at any tier for construction work under the contract resulting from …
  • FAR 52.222-41 Service Contract Labor Standards.
    …requirement is a violation of 41 U.S.C. 6703 and of this contract. (h) Safe and Sanitary Working Conditions. The Contractor or subcontractor shall not permit any part of the services called for by this contract to be performed in buildings…
  • FAR 52.226-1 Utilization of Indian Organizations and Indian-Owned Economic Enterprises.
    …igibility and notify the Contracting Officer. No incentive payment will be made within 50 working days of subcontract award or while a challenge is pending. If a subcontractor is determined to be an ineligible participant, no incentive paym…
  • FAR 52.232-25 Prompt payment.
    …Sunday, or legal holiday, the designated payment office may make payment on the following working day without incurring a late payment interest penalty. (i) The designated billing office received a proper invoice. (ii) The Government proc…

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.