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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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44 sections with “amendment to the solicitation”: the first 40

  • FAR 15.206 Amending the solicitation.
    …ments or terms and conditions, the contracting officer shall amend the solicitation. (b) Amendments issued before the established time and date for receipt of proposals shall be issued to all parties receiving the solicitation. (c) Amendm…
  • FAR 52.214-3 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 sha…
  • FAR 19.103 Appealing the contracting officer's North American Industry Classification System code and size standard determination.
    …d and filed within 10 calendar days after the issuance of the initial solicitation or any amendment affecting the NAICS code or size standard. However, SBA may file a NAICS code appeal at any time before offers are due. (2) Appeals of a co…
  • FAR 22.404-4 Solicitations issued without wage determinations for the primary site of the work.
    …hat the schedule of minimum wage rates to be paid under the contract will be issued as an amendment to the solicitation. (b) In sealed bidding, bids may not be opened until a reasonable time after the wage determination for the primary sit…
  • FAR 14.208 Amendment of invitation for bids.
    … or to correct a defective or ambiguous 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 …
  • FAR 52.215-1 Instructions to Offerors—Competitive Acquisition.
    … to a proposal before the solicitation's closing date and time, or made in response to an amendment, or made to correct a mistake at any time before award. Proposal revision is a change to a proposal made after the solicitation closing dat…
  • FAR 52.203-12 Limitation on Payments to Influence Certain Federal Transactions.
    …ess in connection with the award of this contractor the extension, continuation, renewal, amendment, or modification of this contract. (1) The term appropriated funds does not include profit or fee from a covered Federal action. (2) To th…
  • FAR 52.214-6 Explanation to Prospective Bidders.
    …ncerning a solicitation will be furnished promptly to all other prospective bidders as an amendment to the solicitation, if that information is necessary in submitting bids or if the lack of it would be prejudicial to other prospective bidd…
  • FAR 52.212-1 Instructions to Offerors—Commercial Products and Commercial Services.
    …ions that the offeror shall complete electronically); (9) Acknowledgment of Solicitation Amendments; (10) Past performance information, when included as an evaluation factor, to include recent and relevant contracts for the same or simila…
  • FAR 53.215-1 Solicitation and receipt of proposals.
    …d in 15.509. Block 18 may not be used for negotiated procurements.. (b) SF 30 (11/2016), Amendment of Solicitation/Modification of Contract. SF 30, prescribed in 53.243, may be used for amending requests for proposals and for amending requ…
  • FAR 4.1602 Identifying the PIID and supplementary PIID.
    …ough (5) of this section. (1) Solicitation. Identify the PIID for all solicitations. For amendments to solicitations, identify a supplementary PIID, in conjunction with the PIID for the solicitation. (2) Contracts and purchase orders. Ide…
  • FAR 12.603 Streamlined solicitation for commercial products or commercial services.
    … establish a response time in accordance with 5.203(b) (but see 5.203(h)). (4) Publicize amendments to solicitations in the same manner as the initial synopsis and solicitation.
  • FAR 14.201-6 Solicitation provisions.
    …n requirements. (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. (c) Insert the following provisions in invitations for bids: (1) 52…
  • FAR 52.204-30 Federal Acquisition Supply Chain Security Act Orders—Prohibition.
    … order issued after the date of solicitation applies to this contract only if added by an amendment to the solicitation or modification to the contract (see FAR 4.2304(c)). However, see paragraph (c) of this clause. (5)(i) If the contracto…
  • FAR 4.1603 Procedures.
    … positions: (b) Elements of a supplementary PIID. Use the supplementary PIID to identify amendments to solicitations and modifications to contracts, orders, and agreements. The supplementary PIID is reported as a separate data element used…
  • FAR 52.204-29 Federal Acquisition Supply Chain Security Act Orders—Representation and Disclosures.
    … (3) FASCSA orders issued after the date of solicitation do not apply unless added by an amendment to the solicitation. (d) Representation. By submission of this offer, the offeror represents that it has conducted a reasonable inquiry, an…
  • FAR 14.402-3 Postponement of openings.
    …t of the determination shall be publicly posted. If practical before issuance of a formal amendment of the invitation, the determination shall be otherwise communicated to prospective bidders who are likely to attend the scheduled bid openi…
  • FAR 15.210 Forms.
    … Offer—Negotiated Acquisition, may be used to issue RFPs and RFIs. (b) Standard Form 30, Amendment of Solicitation/Modification of Contract, and Optional Form 309, Amendment of Solicitation, may be used to amend solicitations of negotiated…
  • FAR 32.908 Contract clauses.
    …vices performed. (2) As provided in 32.903, agency policies and procedures may authorize amendment of paragraphs (a)(1)(i) and (ii) of the clause to insert a period shorter than 30 days (but not less than 7 days) for making contract invoic…
  • FAR 43.101 Definitions.
    … paying office or the appropriation data). Effective date means— (1) For a solicitation amendment, change order, or administrative change, the effective date shall be the issue date of the amendment, change order, or administrative change…
  • FAR 43.301 Use of forms.
    (a)(1) The Standard Form 30 (SF 30), Amendment of Solicitation/Modification of Contract, exclusive of actions processed under part 15, shall (except for the options stated in 43.301(a)(2) or actions processed under part 15) be used for— (i…
  • FAR 1.108 FAR conventions.
    …relevant portion of the Code of Federal Regulations, the citation includes all applicable amendments, unless otherwise stated. (f) Imperative sentences. When an imperative sentence directs action, the contracting officer is responsible for…
  • FAR 3.803 Exceptions.
    …to the provisions of the Small Business Act, as amended by Pub. L. 95-507, and subsequent amendments. (2) Professional and technical services. (i) Payment of reasonable compensation made to an officer or employee of a person requesting or …
  • FAR 4.803 Contents of contract files.
    …cted. (7) Government estimate of contract price. (8) A copy of the solicitation and all amendments thereto. (9) Security requirements and evidence of required clearances. (10) A copy of each offer or quotation, the related abstract, and…
  • FAR 4.1002 Applicability.
    …policies of this subpart shall apply to the following procurement instruments, to include amendments, modifications, and change orders thereto: (a) Solicitations. (b) Contracts, including, but not limited to, Governmentwide acquisition co…
  • FAR 8.716 Change-of-name and successor in interest procedures.
    …t from the Committee, the contracting officer must— (1) Prepare a Standard Form (SF) 30, Amendment of Solicitation/Modification of Contract, incorporating a summary of the notice and attaching a list of contracts affected; and (2) Distrib…
  • FAR 11.201 Identification and availability of specifications.
    …agency index shall identify each document's approval date and the dates of any applicable amendments and revisions. Do not use general identification references, such as “the issue in effect on the date of the solicitation.” Contracting off…
  • FAR 13.307 Forms.
    …on these forms the clauses considered to be generally suitable for purchases. (3) SF 30, Amendment of Solicitation/Modification of Contract, or a purchase order form may be used to modify a purchase order, unless an agency form/automated f…
  • FAR 14.209 Cancellation of invitations before opening.
    ….g., (1) where there is no longer a requirement for the supplies or services or (2) where amendments to the invitation would be of such magnitude that a new invitation is desirable. (b) When an invitation issued other than electronically i…
  • FAR 15.001 Definitions.
    …de to a proposal before the solicitation closing date and time, or made in response to an amendment, or made to correct a mistake at any time before award. Proposal revision is a change to a proposal made after the solicitation closing dat…
  • FAR 15.208 Submission, modification, revision, and withdrawal of proposals.
    …the exact time specified in the solicitation, and urgent Government requirements preclude amendment of the solicitation closing date, the time specified for receipt of proposals will be deemed to be extended to the same time of day specifie…
  • FAR 19.302 Protesting a small business representation or rerepresentation.
    … applicable size standard. (iv) A copy or an electronic link to the solicitation and any amendments. (v) The name, address, telephone number, email address, and fax number of the contracting officer. (vi) Identification of the bid openin…
  • FAR 32.204 Procedures for contracting officer-specified commercial contract financing.
    …f alternative financing terms shall not be accepted (but see 14.208 and 15.206 concerning amendments of solicitations). However, an offer stating that the contracting officer-specified contract financing terms will not be used by the offero…
  • FAR 36.213-3 Invitations for bids.
    …hat the schedule of minimum wage rates to be paid under the contract will be issued as an amendment to the invitation for bids before the opening date for bids (see 14.208 and 22.404-3(b)). (2) The Performance of Work by the Contractor cla…
  • FAR 42.1203 Processing agreements.
    …he agreement, the responsible contracting officer shall— (1) Prepare a Standard Form 30, Amendment of Solicitation/Modification of Contract, incorporating a summary of the agreement and attaching a complete list of contracts affected; (2)…
  • FAR 43.201 General.
    …he contract. These are accomplished by issuing written change orders on Standard Form 30, Amendment of Solicitation/Modification of Contract (SF 30), unless otherwise provided (see 43.301). (b) The contractor must continue performance of t…
  • FAR 49.109-1 General.
    …ned, the contractor and the TCO shall execute a settlement agreement on Standard Form 30 (Amendment of Solicitation/Modification of Contract) (see 49.603). The settlement shall cover (a) any setoffs that the Government has against the contr…
  • FAR 49.603-5 Cost-reimbursement contracts—partial termination.
    [Insert the following in Block 14 of SF 30, Amendment of Solicitation/Modification of Contract, for settlement agreements for cost-reimbursement contracts as a result of partial termination.] (a) This supplemental agreement settles the ter…
  • FAR 52.214-7 Late submissions, modifications, and withdrawals of bids.
    …f bids by the exact time specified in the IFB and urgent Government requirements preclude amendment of the IFB, the time specified for receipt of bids will be deemed to be extended to the same time of day specified in the solicitation on th…
  • FAR 52.222-50 Combating Trafficking in Persons.
    …ctor, including a sole proprietor, to waive his or her attorney client privilege or Fifth Amendment rights; or (iii) Restrict the Contractor from— (A) Conducting an internal investigation; or (B) Defending a proceeding or dispute arising…

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.