FAR 52.216-25 — Contract Definitization

Contract clause · dated Oct 2010 · prescribed in FAR 16.603-4(b)(3) · current through FAC 2026-01

In plain English

FAR 52.216-25, Contract Definitization, is a contract clause prescribed at FAR 16.603-4(b)(3), most recently dated Oct 2010. The complete official text is reproduced below, verbatim, from GSA's published FAR source files.

Its text contains no sentence requiring insertion into subcontracts; see the flowdown section below for what that does and does not mean.

Does it flow down to subcontracts?

No flowdown mandate found in the clause text

We scanned the full clause text and found no sentence directing the contractor to insert this clause into subcontracts. That is a statement about the text, not legal advice: a prime contractor may still flow terms down contractually, an agency supplement (DFARS, VAAR, …) may add requirements, and clauses listed below (if any) may order this clause into subcontracts from the outside.

Where it's prescribed

As prescribed in 16.603-4(b)(3), insert the following clause:

Prescribing reference: FAR 16.603-4(b)(3).

The official text, verbatim

FAR 52.216-25 · Oct 2010 current through FAC 2026-01 acquisition.gov eCFR (48 CFR)

As prescribed in 16.603-4(b)(3), insert the following clause:

Contract Definitization (Oct 2010)

  • (a) A ______________ [insert specific type of contract] definitive contract is contemplated. The Contractor agrees to begin promptly negotiating with the Contracting Officer the terms of a definitive contract that will include (1) all clauses required by the Federal Acquisition Regulation (FAR) on the date of execution of the letter contract, (2) all clauses required by law on the date of execution of the definitive contract, and (3) any other mutually agreeable clauses, terms, and conditions. The Contractor agrees to submit a ______ [insert specific type of proposal (e.g., fixed-price or cost-and-fee)] proposal, including data other than certified cost or pricing data, and certified cost or pricing data, in accordance with FAR 15.408, Table  15-1, supporting its proposal.

  • (b) The schedule for definitizing this contract is [insert target date for definitization of the contract and dates for submission of proposal, beginning of negotiations, and, if appropriate, submission of make-or-buy and subcontracting plans and certified cost or pricing data]: ___________________________________________________________________________________________ ___________________________________________________________________________________________

  • (c) If agreement on a definitive contract to supersede this letter contract is not reached by the target date in paragraph (b) of this section, or within any extension of it granted by the Contracting Officer, the Contracting Officer may, with the approval of the head of the contracting activity, determine a reasonable price or fee in accordance with subpart  15.4 and part  31 of the FAR, subject to Contractor appeal as provided in the Disputes clause. In any event, the Contractor shall proceed with completion of the contract, subject only to the Limitation of Government Liability clause.

    • (1) After the Contracting Officer’s determination of price or fee, the contract shall be governed by-

      • (i) All clauses required by the FAR on the date of execution of this letter contract for either fixed-price or cost-reimbursement contracts, as determined by the Contracting Officer under this paragraph (c);

      • (ii) All clauses required by law as of the date of the Contracting Officer’s determination; and

      • (iii) Any other clauses, terms, and conditions mutually agreed upon.

    • (2) To the extent consistent with paragraph (c)(1) of this section, all clauses, terms, and conditions included in this letter contract shall continue in effect, except those that by their nature apply only to a letter contract.

(End of clause)

Alternate I (Apr 1984). In letter contracts awarded on the basis of price competition, add the following paragraph (d) to the basic clause:

(d) The definitive contract resulting from this letter contract will include a negotiated _____________ [insert "price ceiling" or "firm fixed price"] in no event to exceed ___________________ [insert the proposed price upon which the award was based].

The text above is reproduced from GSA's published FAR source files (GSA/GSA-Acquisition-FAR @ da52ccb (2026-03-30)), retrieved 2026-07-17. The official publication at acquisition.gov / eCFR controls if they differ.