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    Home/FAR Navigator/14/14.3

    FAR Navigator

    • 1Federal Acquisition Regulations System
    • 2Definitions of Words and Terms
    • 3Improper Business Practices and Personal Conflicts of Interest
    • 4Administrative and Information Matters
    • 5Publicizing Contract Actions
    • 6Competition Requirements
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    • 11Describing Agency Needs
    • 12Acquisition of Commercial Products and Commercial Services
    • 13Simplified Acquisition Procedures
    • 14Sealed Bidding
      • 14.000Scope of part.
      • 14.1Subpart 14.1
      • 14.2Subpart 14.2
      • 14.3Subpart 14.3
        • 14.301Responsiveness of bids.
        • 14.302Bid submission.
        • 14.303Modification or withdrawal of bids.
        • 14.304Submission, modification, and withdrawal of bids.
      • 14.4Subpart 14.4
      • 14.5Subpart 14.5
    • 15Contracting by Negotiation
    • 16Types of Contracts
    • 17Special Contracting Methods
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    • 50Extraordinary Contractual Actions and the Safety Act
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    • 52Solicitation Provisions and Contract Clauses
    • 53Forms
    Up to 14
    SubpartUpdated April 16, 2026

    FAR 14.3—Subpart 14.3

    Contents

    • 14.301

      Responsiveness of bids.

      FAR 14.301 explains what makes a bid "responsive" in sealed bidding and why responsiveness matters. It covers the core rule that a bid must comply in all material respects with the invitation for bids, the requirement that facsimile bids are only acceptable when the solicitation allows them, the rules for bids submitted on a bidder’s own form or in a letter, and the treatment of bids submitted by electronic commerce. In practice, this section protects the integrity of the sealed bidding system by ensuring all bidders compete on an equal basis and that award can be made without negotiating away material terms after bid opening. It also tells contracting officers when a bid must be rejected as nonresponsive and when a nonstandard submission can still be accepted if it creates a binding contract that matches the solicitation exactly. For contractors, the section is a warning that even small deviations from the IFB’s instructions or terms can make a bid ineligible for award.

    • 14.302

      Bid submission.

      FAR 14.302 is the core timeliness rule for sealed bidding bid submission. It addresses where bids must be delivered, when they must arrive, and the consequence of missing the deadline established in the invitation for bids (IFB). In practice, it requires bidders to send their bids to the exact office named in the solicitation and to ensure the bid is actually received there no later than the precise bid opening time. The rule exists to preserve the integrity of sealed bidding by treating all bidders equally, preventing late access to bids, and allowing the government to open bids at a fixed time with confidence that all timely bids are in hand. For contractors, this means planning for delivery delays, internal routing, and receipt confirmation; for contracting officers, it means clearly identifying the correct office and enforcing the deadline consistently.

    • 14.303

      Modification or withdrawal of bids.

      FAR 14.303 explains how a sealed bidding offeror may modify or withdraw a bid before bid opening, and it sets the handling rules for those actions depending on the method used. It covers four main topics: general modification or withdrawal by any solicitation-authorized method, special rules for facsimile bid modifications or withdrawals, in-person withdrawal procedures, and the treatment of electronically transmitted bids when withdrawn. The section exists to preserve the integrity of sealed bidding by ensuring that bidders can correct or retract bids before the exact opening time, while preventing premature disclosure of bid contents. In practice, it gives bidders a limited right to change their minds or fix mistakes, but only if they meet strict timing and delivery requirements. It also imposes specific administrative safeguards on government personnel, such as sealing faxed modifications, marking envelopes, and protecting electronic data from viewing or retention. For contracting officers and bid-opening officials, this section is about maintaining a fair, auditable, and secure bid-opening process.

    • 14.304

      Submission, modification, and withdrawal of bids.

      FAR 14.304 governs how bids, bid modifications, and bid withdrawals are submitted, when they are considered timely, and what happens when they are late. It addresses the bidder’s responsibility to get the bid to the exact Government office by the exact time stated in the invitation for bids (IFB), the limited circumstances in which late bids or late modifications may still be considered, and the special rule allowing a late modification that makes an otherwise successful bid more favorable to the Government. It also explains what counts as acceptable evidence of receipt, how emergencies or interruptions to Government operations affect the bid opening time, and how bids may be withdrawn before opening by written notice, facsimile, or in person under specified conditions. Finally, it requires the contracting officer to notify bidders about late receipt, directs how unopened late bids and bid bonds are handled, and requires documentation in the contract file. In practice, this section protects the integrity of sealed bidding by enforcing strict deadlines while preserving narrow exceptions for fairness, Government control, and operational disruptions.

    Back to 14FAR Navigator
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