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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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331 sections with “Bid”: the first 40

  • FAR 3.104-4 Disclosure, protection, and marking of contractor bid or proposal information and source selection information.
    …ically provided for in this subsection, no person or other entity may disclose contractor bid or proposal information or source selection information to any person other than a person authorized, in accordance with applicable agency regulat…
  • FAR 6.401 Sealed bidding and competitive proposals.
    Sealed bidding and competitive proposals, as described in parts 14 and 15, are both acceptable procedures for use under subparts 6.1, 6.2; and, when appropriate, under subpart 6.3. (a) Sealed bids. (See part 14 for procedures.) Contracting…
  • FAR 14.101 Elements of sealed bidding.
    Sealed bidding is a method of contracting that employs competitive bids, public opening of bids, and awards. The following steps are involved: (a) Preparation of invitations for bids. Invitations must describe the requirements of the Gover…
  • FAR 14.202-1 Bidding time.
    (a) Policy. A reasonable time for prospective bidders to prepare and submit bids shall be allowed in all invitations, consistent with the needs of the Government. (For construction contracts, see 36.213-3(a).) A bidding time (i.e., the time…
  • FAR 14.202-4 Bid samples.
    (a) Policy. (1) Bidders shall not be required to furnish bid samples unless there are characteristics of the product that cannot be described adequately in the specification or purchase description. (2) Bid samples will be used only to det…
  • FAR 14.202-7 Facsimile bids.
    …r otherwise restricted by agency procedures, contracting officers may authorize facsimile bids (see 14.201-6(v)). In determining whether or not to authorize facsimile bids, the contracting officer shall consider factors such as— (1) Antici…
  • FAR 14.208 Amendment of invitation for bids.
    …biguous invitation, such changes shall be accomplished by amendment of the invitation for bids using Standard Form 30, Amendment of Solicitation/Modification of Contract. The fact that a change was mentioned at a pre-bid conference does not…
  • FAR 14.301 Responsiveness of bids.
    (a) To be considered for award, a bid must comply in all material respects with the invitation for bids. Such compliance enables bidders to stand on an equal footing and maintain the integrity of the sealed bidding system. (b) Facsimile bi…
  • FAR 14.303 Modification or withdrawal of bids.
    (a) Bids may be modified or withdrawn by any method authorized by the solicitation, if notice is received in the office designated in the solicitation not later than the exact time set for opening of bids. If the solicitation authorizes fac…
  • FAR 14.304 Submission, modification, and withdrawal of bids.
    (a) Bidders are responsible for submitting bids, and any modifications or withdrawals, so as to reach the Government office designated in the invitation for bid (IFB) by the time specified in the IFB. They may use any transmission method au…
  • FAR 14.401 Receipt and safeguarding of bids.
    (a) All bids (including modifications) received before the time set for the opening of bids shall be kept secure. Except as provided in paragraph (b) of this section, the bids shall not be opened or viewed, and shall remain in a locked bid …
  • FAR 14.402-1 Unclassified bids.
    (a) The bid opening officer shall decide when the time set for opening bids has arrived and shall inform those present of that decision. The officer shall then (1) personally and publicly open all bids received before that time, (2) if prac…
  • FAR 14.402-2 Classified bids.
    The general public may not attend bid openings for classified acquisitions. A bidder or its representative may attend and record the results if the individual has the appropriate security clearance. The contracting officer also may make the…
  • FAR 14.403 Recording of bids.
    …ion (or automated equivalent), shall be completed and certified as to its accuracy by the bid opening officer as soon after bid opening as practicable. Where bid items are too numerous to warrant complete recording of all bids, abstract ent…
  • FAR 14.404-2 Rejection of individual bids.
    (a) Any bid that fails to conform to the essential requirements of the invitation for bids shall be rejected. (b) Any bid that does not conform to the applicable specifications shall be rejected unless the invitation authorized the submiss…
  • FAR 14.405 Minor informalities or irregularities in bids.
    …ly a matter of form and not of substance. It also pertains to some immaterial defect in a bid or variation of a bid from the exact requirements of the invitation that can be corrected or waived without being prejudicial to other bidders. Th…
  • FAR 14.406 Receipt of an unreadable electronic bid.
    If a bid received at the Government facility by electronic data interchange is unreadable to the degree that conformance to the essential requirements of the invitation for bids cannot be ascertained, the contracting officer immediately sha…
  • FAR 14.408-6 Equal low bids.
    (a) Contracts shall be awarded in the following order of priority when two or more low bids are equal in all respects: (1) Small business concerns that are also labor surplus area concerns. (2) Other small business concerns. (3) Other bu…
  • FAR 28.101-3 Authority of an attorney-in-fact for a bid bond.
    (a) Any person signing a bid bond as an attorney-in-fact shall include with the bid bond evidence of authority to bind the surety. (b) An original, or a photocopy or facsimile of an original, power of attorney is sufficient evidence of suc…
  • FAR 28.101-4 Noncompliance with bid guarantee requirements.
    (a) In sealed bidding, noncompliance with a solicitation requirement for a bid guarantee requires rejection of the bid, except in the situations described in paragraph (c) of this subsection when the noncompliance shall be waived. (b) In n…
  • FAR 36.213-3 Invitations for bids.
    (a) Invitations for bids for construction shall allow sufficient time for bid preparation (i.e., the period of time between the date invitations are distributed and the date set for opening of bids) (but see 5.203 and 14.202-1) to allow bid…
  • FAR 52.214-3 Amendments to Invitations for Bids.
    …scribed in 14.201-6(b)(1), insert the following provision: Amendments to Invitations for Bids (DEC 2016) (a) If this solicitation is amended, then all terms and conditions which are not modified remain unchanged. (b)(1) Bidders shall ack…
  • FAR 52.214-5 Submission of Bids.
    As prescribed in 14.201-6(c)(1), insert the following provision: Submission of Bids (DEC 2016) (a) Bids and bid modifications shall be submitted in sealed envelopes or packages (unless submitted by electronic means) (1) addressed to the o…
  • FAR 52.214-6 Explanation to Prospective Bidders.
    …prescribed in 14.201-6(c)(2), insert the following provision: Explanation to Prospective Bidders (APR 1984) Any prospective bidder desiring an explanation or interpretation of the solicitation, drawings, specifications, etc., must request…
  • FAR 52.214-7 Late submissions, modifications, and withdrawals of bids.
    …(3), insert the following provision: Late Submissions, Modifications, and Withdrawals of Bids (NOV 1999) (a) Bidders are responsible for submitting bids, and any modifications or withdrawals, so as to reach the Government office designate…
  • FAR 52.214-10 Contract Award—Sealed Bidding.
    As prescribed in 14.201-6(e), insert the following provision: Contract Award—Sealed Bidding (JUL 1990) (a) The Government will evaluate bids in response to this solicitation without discussions and will award a contract to the responsible…
  • FAR 52.214-12 Preparation of Bids.
    As prescribed in 14.201-6(f), insert the following provision: Preparation of Bids (APR 1984) (a) Bidders are expected to examine the drawings, specifications, Schedule, and all instructions. Failure to do so will be at the bidder's risk. …
  • FAR 52.214-14 Place of Performance—Sealed Bidding.
    …s prescribed in 14.201-6(h), insert the following provision: Place of Performance—Sealed Bidding (APR 1985) (a) The bidder, in the performance of any contract resulting from this solicitation, □ intends, □ does not intend [check applicabl…
  • FAR 52.214-15 Period for Acceptance of Bids.
    As prescribed in 14.201-6(i), insert the following provision: Period for Acceptance of Bids (APR 1984) In compliance with the solicitation, the bidder agrees, if this bid is accepted within __ calendar days (60 calendar days unless a diff…
  • FAR 52.214-16 Minimum Bid Acceptance Period.
    As prescribed in 14.201-6(j), insert the following provision in invitations for bids, except for construction, if the contracting officer determines that a minimum acceptance period must be specified: Minimum Bid Acceptance Period (APR 198…
  • FAR 52.214-18 Preparation of Bids—Construction.
    As prescribed in 14.201-6(l), insert the following provision: Preparation of Bids—Construction (APR 1984) (a) Bids must be (1) submitted on the forms furnished by the Government or on copies of those forms, and (2) manually signed. The pe…
  • FAR 52.214-19 Contract Award—Sealed Bidding—Construction.
    As prescribed in 14.201-6(m), insert the following provision: Contract Award—Sealed Bidding—Construction (AUG 1996) (a) The Government will evaluate bids in response to this solicitation without discussions and will award a contract to th…
  • FAR 52.214-20 Bid Samples.
    As prescribed in 14.201-6(o)(1), insert the following provision: Bid Samples (APR 2002) (a) Bid sample means a product sample required to be submitted by a bidder to show those characteristics of the offered products that cannot adequatel…
  • FAR 52.214-23 Late submissions, modifications, revisions, and withdrawals of technical proposals under two-step sealed bidding.
    …s, Modifications, Revisions, and Withdrawals of Technical Proposals Under Two-Step Sealed Bidding (NOV 1999) (a) Bidders are responsible for submitting technical proposals, and any modifications or revisions, so as to reach the Government …
  • FAR 52.214-25 Step Two of Two-Step Sealed Bidding.
    …s prescribed in 14.201-6(t), insert the following provision: Step Two of Two-Step Sealed Bidding (APR 1985) (a) This invitation for bids is issued to initiate step two of two-step sealed bidding under subpart 14.5 of the Federal Acquisiti…
  • FAR 52.214-31 Facsimile Bids.
    As prescribed in 14.201-6(v), insert the following provision: Facsimile Bids (DEC 1989) (a) Definition. Facsimile bid, as used in this solicitation, means a bid, modification of a bid, or withdrawal of a bid that is transmitted to and rec…
  • FAR 52.219-2 Equal Low Bids.
    As prescribed in 19.309(b), insert the following provision: Equal Low Bids (OCT 1995) (a) This provision applies to small business concerns only. (b) The bidder's status as a labor surplus area (LSA) concern may affect entitlement to awa…
  • FAR 52.228-1 Bid Guarantee.
    As prescribed in 28.101-2, insert a provision or clause substantially as follows: Bid Guarantee (SEP 1996) (a) Failure to furnish a bid guarantee in the proper form and amount, by the time set for opening of bids, may be cause for rejecti…
  • FAR 53.214 Sealed bidding.
    The following forms are prescribed for use in contracting by sealed bidding (except for construction and architect-engineer services): (a) SF 26 (Rev. 12/2022), Award/Contract. SF 26 is prescribed for use in awarding sealed bid contracts f…
  • DFARS 252.227-7016 Rights in Bid or Proposal Information.
    …27.7103-6(e)(1), 227.7104-4(b)(1), or 227.7203-6(b), use the following clause: Rights In Bid or Proposal Information (JAN 2025) (a) Definitions. (a) Definitions. As used in this clause— Computer software is defined in— (1) The 252.227-…

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.