Definitizing Change Orders Under FAR 43.204
On federal construction projects, changes in scope or site conditions frequently require immediate action in the field before the full cost and schedule impact can be priced. When modifications proceed without upfront pricing, the procurement process requires a structured procedure known as definitization. Federal regulation governs how the contracting officer must manage, review, and finalize these changes into binding contract terms.
Two-Document Workflow vs. Forward Pricing
Under FAR 43.204, the administrative framework depends directly on whether an adjustment is priced beforehand. When an equitable adjustment in contract price, delivery terms, or both can be established in advance, the contracting officer only needs to issue a single supplemental agreement. Similarly, administrative modifications and changes issued under clauses granting unilateral authority, such as option clauses, initially require only one document.
However, when changes cannot be forward priced, the regulation mandates two distinct instruments. First, the contracting officer issues an unpriced change order authorizing the work. Second, the parties execute a subsequent supplemental agreement that reflects the final equitable adjustment. Contractors handling federal work must recognize that until that second bilateral agreement is executed, the financial and schedule terms remain open, making precise tracking essential when pricing change orders.
The Definitization Clock and Agency Recordkeeping
Federal rules dictate that contracting officers must negotiate equitable adjustments resulting from change orders in the shortest practicable time. For construction contracts specifically, federal agencies are required to record and maintain performance data tracking the exact duration required to definitize these adjustments.
According to Acquisition.GOV FAR 43.204 Administration, this formal definitization window operates under strict milestones:
- Proposal Receipt: The measurement period begins the moment the contracting officer receives an adequate change order definitization proposal from the contractor.
- Contract Execution: The measurement period concludes when the contracting officer executes the official contractual action definitizing the change order.
- Data Tracking: Contracting officers must record this timeline promptly per agency procedures, cross-referenced with the solicitation requirements outlined in FAR 36.211(b).
- Suspense Systems: Both contracting offices and contract administration offices must maintain adequate suspense systems designed to ensure prompt identification and definitization of unpriced change orders.
Cost Analysis, Segrable Costs, and Delivery Concurrence
Before executing an equitable adjustment, the contracting officer has specific financial and administrative responsibilities. If appropriate, the contracting officer must ensure a cost analysis is performed under 15.404-1(c). During this evaluation, the government must examine the contractor's segregable costs of the change if those cost records are available. Segregating change-related expenses from base contract work helps establish a transparent foundation for the adjustment.
In addition, if the equitable adjustment requires additional government funding, the contracting officer cannot simply adjust the contract value on paper; they must secure those funds before executing the modification. When contract administration duties are delegated, administrative contracting officers operating under 42.302(b)(1) face clear boundaries. They must obtain concurrence from the primary contracting officer before altering any contract delivery schedule.
Documentation for Field Pricing Reviews
When an equitable adjustment request requires an in-depth field pricing review, the contracting officer must furnish analysts with background information to place the contractor's proposal in proper context. The regulation outlines a comprehensive list of significant project events that the contracting officer should provide:
- Date and dollar value of the original contract award as well as any prior modifications.
- Date of the initial contract proposal submission along with its original dollar amount.
- Specific calendar dates of any alleged delays or project disruptions.
- Delivery performance dates as scheduled at the time of initial award or subsequent modifications.
- Actual performance dates achieved during project execution.
- The date entitlement to an equitable adjustment was determined or when a contracting officer decision was formally issued.
- The certification date of the contractor's request for adjustment, whenever certification is required.
- Dates of pertinent government actions or other significant milestones during performance that could influence the adjustment request.
Complete Adjustments and the Contractor Statement of Release
To eliminate post-settlement disputes arising from change orders, the regulation emphasizes establishing complete and final settlements. Contracting officers are instructed to confirm that all aspects of an equitable adjustment have been fully presented and resolved before finalizing the modification.
To confirm finality, the supplemental agreement should incorporate a standard contractor release statement. Under this provision, the contractor agrees that the modification serves as a complete equitable adjustment for the proposal and releases the government from future liability for additional adjustments arising from those specific facts and circumstances. If certain impacts remain unresolved, the contractor must explicitly identify and reserve those items within the designated exceptions section of the release language before signing.
Sources
Acquisition.GOV: FAR 43.204 Administration
Published October 30, 2026. No affiliate links on this page. Facts come from the sources linked above; check them for updates.