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FAR and DFARS › FAR Part 43: Contract Modifications › Subpart 43.3

FAR 43.301 Use of forms.

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 tells contracting officers which form to use for changing a solicitation or modifying a contract. The Standard Form 30 (SF 30) must generally be used for amendments, change orders, unilateral modifications, administrative changes, supplemental agreements, and funding changes, except in certain situations. It also says that if a change is expected to alter the price, the estimated amount must not be shown on the contractor's copy of the form.

Applies to: Contracting officers preparing solicitations and contract modifications

What it requires

  • Use SF 30 for amendments to solicitations, change orders, unilateral modifications, administrative changes, supplemental agreements, and funding changes, except as noted in the section
  • Do not show the estimated amount of a price change on copies of SF 30 given to the contractor

Key terms: SF 30 · Amendment of Solicitation/Modification of Contract · change orders · unilateral contract modification · supplemental agreements

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

The text

(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) Any amendment to a solicitation;

(ii) Change orders issued under the Changes clause of the contract;

(iii) Any other unilateral contract modification issued under a contract clause authorizing such modification without the consent of the contractor;

(iv) Administrative changes such as the correction of typographical mistakes, changes in the paying office, and changes in accounting and appropriation data;

(v) Supplemental agreements (see 43.103); and

(vi) Removal, reinstatement, or addition of funds to a contract.

(2) The SF 30 may be used for (i) modifications that change the price of contracts for the acquisition of petroleum as a result of economic price adjustment, (ii) termination notices, and (iii) purchase order modifications as specified in 13.302-3.

(3) If it is anticipated that a change will result in a price change, the estimated amount of the price change shall not be shown on copies of SF 30 furnished to the contractor.

(b) The Optional Form 336 (OF 336), Continuation Sheet, or a blank sheet of paper, may be used as a continuation sheet for a contract modification.

Sections it refers to

  • 43.103 Types of contract modifications.
  • 13.302-3 Obtaining contractor acceptance and modifying purchase orders.

Sections that refer to it

← 43.205 Contract clauses.

Rule changes for FAR Part 43

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

FAR 43.301 Use of forms · SpendQuery