Acceptance & Nonconformance · FAR Subpart 46.5

Acceptance

Also known as: Government acceptance, final acceptance

What you do here: Tender conforming work, then get acceptance documented so your invoice can be paid

At a Glance

What it is
The government's formal acknowledgment that the work conforms and it takes the supplies/services
Who does it
An authorized government representative (the CO or a designated acceptance official)
Governing authority
FAR Subpart 46.5 (Acceptance); documented via the Inspection clause and receiving reports
Legal effect
Generally conclusive — except for latent defects, fraud, or gross mistakes amounting to fraud
Why it matters to you
Acceptance of conforming work is what makes your invoice payable under the Prompt Payment Act

What It Is

Acceptance is the government's act of acknowledging that supplies or services conform to the contract and assuming ownership and responsibility for them. FAR Subpart 46.5 governs it: acceptance must be performed by an authorized government representative, it's evidenced by a signed document (a receiving report such as those processed through WAWF, or an acceptance entry on the inspection form), and it normally happens at a specified point — at origin (source) or at destination. The reason acceptance matters so much is its legal effect: acceptance is *conclusive*, meaning the government generally can't later reject the work or claim it was defective — with three important exceptions written into the standard Inspection clauses: latent defects, fraud, and gross mistakes amounting to fraud. In other words, once the government accepts, it has largely committed to the deliverable except where a defect was hidden or there was fraud/gross mistake. Two practical consequences follow. First, acceptance is the trigger for payment — under the Prompt Payment Act framework, a proper invoice plus government acceptance starts the clock on when you must be paid, so getting acceptance documented promptly is a cash-flow priority. Second, the government must decide at acceptance whether the work conforms; it can't casually accept and then treat acceptance as meaningless. Acceptance can be conditional or partial in some circumstances, but the default is that acceptance of conforming work is the finish line for that deliverable and the starting gun for your money.

When You See It

  • When the government acknowledges that delivered supplies or completed services conform and takes them.
  • At the contract's specified acceptance point — origin (source) or destination.
  • When a receiving report or acceptance document is signed (often through WAWF on defense contracts).
  • As the event that, with a proper invoice, starts the Prompt Payment Act payment clock.

Key Features

FeatureWhat It Means
Acknowledges conformance and takes ownershipAcceptance is the government's acknowledgment that the work conforms to the contract and its assumption of the supplies/services.
Generally conclusiveOnce accepted, the government generally can't reject the work — except for latent defects, fraud, or gross mistakes amounting to fraud.
By an authorized representativeOnly an authorized government official can accept, and acceptance is evidenced by a signed receiving/acceptance document.
At a specified placeThe contract sets the acceptance point — at origin (your facility/source) or at destination (where the work is delivered).
Triggers paymentAcceptance of conforming work, plus a proper invoice, starts the Prompt Payment Act clock — it's the gateway to getting paid.

The SDVOSB Angle

For a cash-tight SDVOSB, acceptance is the single most important post-delivery event, because it's what converts finished work into a payable invoice. Chase it: tender conforming work, submit a proper invoice, and make sure the acceptance document actually gets signed and entered (in WAWF or the applicable system) — an unsigned acceptance is an unpaid invoice, and payment delays hit a small firm's payroll hard. Know your acceptance point (source vs. destination) because it changes your schedule, your shipping risk, and when the payment clock starts. And use acceptance's finality to your advantage: because acceptance is generally conclusive, a government attempt to reject or charge you *after* acceptance has to fit the narrow latent-defect / fraud / gross-mistake exceptions — if it doesn't, you have a strong position to push back through an equitable adjustment or a claim.

How to Handle It

  1. Confirm the contract's acceptance point (origin or destination) and who the authorized acceptance official is.
  2. Tender conforming work and submit a proper invoice so acceptance and payment aren't held up by paperwork.
  3. Make sure the acceptance/receiving document is actually signed and entered (e.g. in WAWF) — track it, don't assume it.
  4. Diary the Prompt Payment due date from acceptance so you can pursue interest if the government pays late.
  5. If the government tries to reject after acceptance, test whether it fits the narrow latent-defect/fraud/gross-mistake exceptions before you absorb any cost.

Watch Out For

  • Assuming delivery equals acceptance — until an authorized official accepts, your invoice generally isn't payable.
  • Letting the acceptance document sit unsigned or un-entered, silently delaying your payment.
  • Overlooking that acceptance is generally conclusive — a late rejection must fit a narrow exception, so don't concede it automatically.
  • Ignoring the acceptance point in the contract, mis-timing your shipping risk and your payment clock.

Run the Numbers

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Frequently Asked

What does acceptance mean on a federal contract?

Acceptance is the government's act of acknowledging that delivered supplies or performed services conform to the contract and taking ownership of them. Governed by FAR Subpart 46.5, it must be done by an authorized government representative and is evidenced by a signed receiving or acceptance document. Acceptance is generally conclusive — the government can't later reject the work except for latent defects, fraud, or gross mistakes amounting to fraud — and it's the event that, with a proper invoice, triggers the payment clock.

Can the government reject work after it has accepted it?

Generally no. Acceptance is conclusive under the standard Inspection clauses, so after acceptance the government usually cannot reject the work or claim it was defective — with three exceptions: latent defects (defects not discoverable by reasonable inspection at acceptance), fraud, and gross mistakes amounting to fraud. If the government tries to reject or charge you after acceptance, the first question is whether the situation fits one of those narrow exceptions; if it doesn't, acceptance stands and you can push back.

Does acceptance trigger payment?

Yes. Under the Prompt Payment Act framework, the government's obligation to pay is triggered by a proper invoice and acceptance of conforming supplies or services. That's why getting acceptance documented promptly matters so much for cash flow — until an authorized official accepts the work and the acceptance is recorded (often in WAWF), your invoice generally isn't payable, and the clock for prompt-payment interest doesn't start.

Primary Sources

Plain-English reference, not legal advice. Quality, inspection, acceptance, and warranty rules are fact-specific, and the FAR and agency supplements are amended from time to time — always read the current FAR text, follow the inspection and acceptance requirements in your specific contract clauses, confirm the requirements with the contracting officer, and consult qualified counsel before relying on an inspection, acceptance, rejection, or warranty position.

Last updated Update cadence: Quarterly, plus on FAR amendment
Change log (1)
  1. LaunchedPublished the federal contract quality assurance, inspection & acceptance reference covering how the government checks, rejects, accepts, and warrants an SDVOSB's work on a set-aside — government contract quality assurance (FAR Part 46), the Inspection of Supplies (52.246-2), Services (52.246-4), and Construction (52.246-12) clauses, higher-level quality requirements / ISO 9001 & AS9100 (52.246-11), acceptance and its near-finality (FAR Subpart 46.5), the rejection and correction of nonconforming work (FAR 46.407), the latent-defect / fraud / gross-mistake exceptions to conclusive acceptance, and contract warranties (FAR Subpart 46.7 / 52.246-17 to -21) — each with an at-a-glance quick-facts card, a when-you-see-it list, a key-features table, an SDVOSB-specific angle, a how-to-handle-it checklist, watch-outs, FAQPage, Article, Dataset, and BreadcrumbList structured data, primary-source FAR citations, and cross-links into the glossary, regulation explainers, clauses, forms, contract types, payment methods, protest & dispute forums, how-to guides, FAQ, and the limitations-on-subcontracting and price-to-win calculators.

Related Quality Mechanisms

Clauses That Apply

FAR 52.232-25Prompt Payment
FAR 52.212-4Contract Terms and Conditions—Commercial Products and Commercial Services

How It Plays by Contract Type

FFPFirm-Fixed-Price (FFP)

How It Ties to Getting Paid

Prompt PaymentInvoice Payment & the Prompt Payment Act
eInvoicingElectronic Invoicing — WAWF & IPP

If It Goes Sideways

Contract Disputes Act Claim

Forms You’ll Use

SF 1449Solicitation/Contract/Order for Commercial Products and Commercial Services
SF 1034/1035Public Voucher for Purchases and Services Other Than Personal

Terms Used on This Page

FARFFPSAM.gov

In the FAQ Knowledge Base

What payment terms apply to SDVOSB federal contracts?
What is involved in SDVOSB contract closeout?
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