FAR 32.501—General.
Plain-English Summary
FAR 32.501 explains the basic framework for progress payments under federal contracts by dividing them into two categories: customary progress payments and unusual progress payments. It identifies the standard approach used in most cases—progress payments made under the general guidance of Subpart 32.5, using the customary progress payment rate, the cost base, and the payment frequency set out in the Progress Payments clause, with either the ordinary liquidation method or the alternate liquidation method. It also makes clear that any progress payment arrangement outside that standard framework is treated as unusual. The practical purpose of this section is to establish the default rule for how progress payments are structured and to signal that deviations are not routine. In practice, this section tells contracting officers and contractors that standard progress payment terms are the norm, while nonstandard arrangements require special justification and authorization under FAR 32.501-2.
Key Rules
Customary payments are the default
Progress payments are considered customary when they follow the general guidance in Subpart 32.5 and use the standard elements established in the Progress Payments clause. This means the payment rate, cost base, and frequency are set through the clause and administered under the normal rules.
Standard liquidation methods apply
Customary progress payments may use either the ordinary liquidation method or the alternate method described elsewhere in Subpart 32.5. The section ties the payment structure to those established liquidation approaches rather than leaving them open-ended.
Nonstandard payments are unusual
Any progress payment arrangement that does not fit the customary framework is treated as unusual. The label matters because unusual progress payments are not routine contract administration tools and require special handling.
Exceptional authorization is required
Unusual progress payments may be used only in exceptional cases and only when authorized under FAR 32.501-2. This creates a gatekeeping requirement that prevents ad hoc or unsupported deviations from standard progress payment practice.
Subpart 32.5 controls the details
This section is a gateway provision that points readers to the broader progress payment rules in Subpart 32.5. It does not itself set all terms, but it establishes how to classify the payment arrangement and where to find the governing mechanics.
Responsibilities
Contracting Officer
Determine whether the proposed progress payment arrangement is customary or unusual, ensure the contract uses the proper Progress Payments clause terms for customary payments, and obtain the required authorization under FAR 32.501-2 before approving any unusual arrangement.
Contractor
Understand whether the contract’s progress payment terms are standard or nonstandard, comply with the cost base, rate, frequency, and liquidation method stated in the contract, and recognize that unusual progress payment terms cannot be assumed or negotiated informally.
Agency
Apply Subpart 32.5 consistently, ensure unusual progress payment arrangements are used only in exceptional cases, and support any required approvals or policy review associated with nonstandard payment structures.
Practical Implications
Most contracts will use the customary progress payment structure, so contractors should expect standard clause-based terms unless the agency has a documented reason to depart from them.
A common pitfall is treating a nonstandard payment schedule or liquidation approach as a routine negotiation point; under this section, deviations are unusual and require special authorization.
Contracting officers should classify the payment arrangement early, because the distinction affects clause selection, administration, and the level of approval needed.
Contractors should review the Progress Payments clause carefully to confirm the applicable rate, cost base, payment frequency, and liquidation method, since those terms control how cash flow will work in practice.
If a proposed arrangement does not fit the standard framework, both sides should expect additional scrutiny and should not proceed without the specific authorization required by FAR 32.501-2.
Official Regulatory Text
Progress payments may be customary or unusual. Customary progress payments are those made under the general guidance in this subpart, using the customary progress payment rate, the cost base, and frequency of payment established in the Progress Payments clause, and either the ordinary liquidation method or the alternate method as provided in subsections 32.503-8 and 32.503-9 . Any other progress payments are considered unusual, and may be used only in exceptional cases when authorized in accordance with subsection 32.501-2 .