RFO
RFO Version Available
The Revolutionary FAR Overhaul has published a revised version of this clause. The RFO version supersedes the eCFR text below for contracts using the RFO model; see the RFO deviation for applicability.
View RFO version52.214-3 Amendments to Invitations for Bids. As prescribed 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 acknowledge receipt of any amendment to this solicitation— (i) By signing and returning the amendment; (ii) By identifying the amendment number and date in space provided for this purpose on the form for submitting a bid; (iii) By letter; (iv) By facsimile, if facsimile bids are authorized in the solicitation; or (v) By email, if email bids are authorized in the solicitation. (2) The Government must receive the acknowledgement by the time and at the place specified for receipt of bids. (End of provision) [53 FR 43394, Oct. 26, 1988, as amended at 54 FR 48990, Nov. 28, 1989; 67 FR 13056, Mar. 20, 2002; 81 FR 83099, Nov. 18, 2016]
14.201-6(b)
(b) Insert in all invitations for bids the provisions at-
(1) 52.214-3, Amendments to Invitations For Bids; and
(2) 52.214-4, False Statements in Bids.
(1) 52.214-3, Amendments to Invitations For Bids; and
(2) 52.214-4, False Statements in Bids.
DFARS Supplementary Guidance
214.201-6
(2) Use the provisions at 252.215-7007, Notice of Intent to Resolicit, and 252.215-7008, Only One Offer, as prescribed at 215.371-6 and 215.408(3), respectively.
Prescription data sourced from eCFR as of 2026-06-10 03:16 UTC.
Cross-references within the prescription are not resolved automatically.
Regulatory Stack
The layers of regulation that govern this clause, from the FAR prescription through agency-specific supplements and any active deviations.
RFO
RFO Version
Overhauled clause text
The Revolutionary FAR Overhaul publishes a revised version of this clause. See the RFO Version tab for the controlling authority under the RFO model.
FAR
FAR Prescription
14.201-6(b)
(b) Insert in all invitations for bids the provisions at-
(1) 52.214-3, Amendments to Invitations For Bids; and
(2) 52.214-4, False Statements in Bids.
(1) 52.214-3, Amendments to Invitations For Bids; and
(2) 52.214-4, False Statements in Bids.
DFARS
DFARS Supplement (eCFR)
214.201-6
(2) Use the provisions at 252.215-7007, Notice of Intent to Resolicit, and 252.215-7008, Only One Offer, as prescribed at 215.371-6 and 215.408(3), respectively.
Version History
Version history is sourced from the codified eCFR. Changes published only as class deviations or by the Revolutionary FAR Overhaul do not appear here until they are incorporated into the eCFR. For RFO-driven changes see the RFO Version tab and any active deviations cited above.
No version history available from eCFR.
RFO Version
Comparison of the codified eCFR text against the Revolutionary FAR Overhaul revision. Highlights show additions (green) and deletions (red, struck through).
Clause Text
Substantive changes. The RFO version differs materially from the eCFR text.
eCFR (codified)
RFO (implemented)
Unchanged
52.214-3 Amendments to Invitations for Bids.
eCFR (codified)
RFO (implemented)
1 added, 1 removed
As prescribed in 14.201-6(b)(1), insert the following provision:
As prescribed in 14.207(b)(1), insert the following provision:
2 added, 2 removed
Amendments to Invitations for Bids (DEC 2016)
Amendments to Invitations for Bids (Deviation Date)
1 added, 11 removed
(b)(1)
(b)(1) Bidders shall acknowledge receipt of any amendment to this solicitation—
(b)(1)
(b)
11 added
(1)
(1)
(1) Bidders shall acknowledge receipt of any amendment to this solicitation-
1 added
(iii)
(iii) By letter;
(iii)
(iii) By letter; or
3 added, 4 removed
(iv)
(iv) By facsimile, if facsimile bids are authorized in the solicitation; or
(iv)
(iv) By email, if email bids are authorized in the solicitation.
17 added, 9 removed
(v)
(v) By email, if email bids are authorized in the solicitation.
(v)
(2) The Government shall receive the acknowledgement by the time and at the place specified for receipt of bids.
19 removed
(2)
(2) The Government must receive the acknowledgement by the time and at the place specified for receipt of bids.
(2)
27 removed
[53 FR 43394, Oct. 26, 1988, as amended at 54 FR 48990, Nov. 28, 1989; 67 FR 13056, Mar. 20, 2002; 81 FR 83099, Nov. 18, 2016]
Prescription
Substantive changes. The RFO prescription differs materially from the eCFR prescription.
eCFR (codified)
RFO (implemented)
Unchanged
52.214-3 Amendments to Invitations for Bids.: Prescription
eCFR (codified)
RFO (implemented)
10 removed
(b)
(b) Insert in all invitations for bids the provisions at-
(b)
6 removed
(2)
(2) 52.214-4, False Statements in Bids.
(2)
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