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FAR and DFARS › FAR Part 14: Sealed Bidding › Subpart 14.3

FAR 14.303 Modification or withdrawal of bids.

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.

In plain English

This section explains how a bidder can change or take back a bid before the exact time set for bid opening. It matters because missing that deadline generally means the bid cannot be modified or withdrawn, and it also sets handling rules to keep bid information confidential until opening.

Applies to: Bidders submitting bids under sealed bidding, and the officials receiving them

What it requires

  • Send any modification or withdrawal notice so it is received in the designated office no later than the exact time set for opening of bids
  • If a modification is received by facsimile, have a proper official seal it in an envelope
  • Write on that envelope the date and time of receipt, who received it, and the invitation for bids number, and sign the envelope
  • Do not disclose any information in the envelope before the time set for bid opening

Key terms: modification · withdrawal · solicitation · facsimile · bid opening

Written by AI from this section's text. A guide, not legal advice: the text below rules.

The text

(a) Bids may be modified or withdrawn by any method authorized by the solicitation, if notice is received in the office designated in the solicitation not later than the exact time set for opening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 If the solicitation authorizes facsimile bids, bids may be modified or withdrawn via facsimile received at any time before the exact time set for receipt of bids, subject to the conditions specified in the provision prescribed in 14.201-6(v). Modifications received by facsimile shall be sealed in an envelope by a proper official.

(1) The official shall—

(i) Write on the envelope—

(A) The date and time of receipt and by whom; and

(B) The number of invitation for bids; and

(ii) Sign the envelope.

(2) No information contained in the envelope shall be disclosed before the time set for bid opening.

(b) A bid may be withdrawn in person by a bidder or its authorized representative if, before the exact time set for opening of bids, the identity of the persons requesting withdrawal is established and that person signs a receipt for the bid.

(c) Upon withdrawal of an electronically transmitted bid, the data received shall not be viewed and shall be purged from primary and backup data storage systems.

Sections it refers to

← 14.302 Bid submission. · 14.304 Submission, modification, and withdrawal of bids. →

Rule changes for FAR Part 14

Source: eCFR, 48 CFR chapters 1 and 2 (GPO GovInfo bulk data) ↗. Plain words for the terms: glossary.

FAR 14.303 Modification or withdrawal of bids · SpendQuery