Also known as:adequate assurances doctrine · adequate assurance · adequate assurances · UCC 2-609 · assurance of performance
Written by attorneys · grounded in primary & secondary sources — see below
A contractual principle allowing a party facing reasonable grounds for insecurity about the other's future performance to demand written assurance of due performance. The demanding party may suspend its own remaining performance until adequate assurance arrives. Failure to provide assurance within a reasonable time constitutes repudiation.
Sources & Authorities· 8 primary sources
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How it applies
Common Examples
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Tower Access Demand After Seizure
MetroCell leased space on Apex Towers cell sites under a ten-year agreement. Apex defaulted on loans and lost towers to a lender while refusing to confirm continued access to key locations. MetroCell sent a written demand for assurance of future access. When Apex provided no concrete response, MetroCell suspended its monthly payments.
Incomplete Delivery Prompts Assurance Request
River Coastal bought refrigerated containers from Silver Sea under a UCC-governed sales contract. An incomplete shipment arrived and a warehouse storm damaged Silver Sea's facility. River Coastal demanded written assurance of future performance. Silver Sea replied informally that issues were resolved but supplied no certifications or timelines.
Prior Acceptance Does Not Bar New Demand
River Coastal accepted earlier engine-part shipments containing minor documentation errors. A later delivery appeared refurbished rather than new. River Coastal demanded detailed written assurance that remaining parts would be brand new with proper certificates. The prior acceptances did not prevent the fresh demand.
Common questions
Frequently Asked
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When does a party have reasonable grounds for insecurity triggering the right to demand adequate assurance?+
Reasonable grounds arise from objective facts showing a substantial risk of nonperformance, such as financial distress, loss of key assets, or repeated delivery failures. Media reports of enforcement actions that could close a plant or a lender's seizure of essential equipment supply such grounds. The demand must be in writing and the suspension of performance must be commercially reasonable.
Supporting sources
What constitutes an adequate response to a demand for assurance under commercial standards?
A response must supply concrete information such as production schedules, contingency plans, or performance certifications that dispel the insecurity according to trade usage. Vague statements that production remains on track or that issues are resolved fall short when prior defects have been reported. Between merchants the adequacy determination follows commercial standards.
Supporting sources
Does prior acceptance of defective goods prevent a later demand for assurance?+
No. Acceptance of any improper delivery or payment does not prejudice the right to demand adequate assurance of future performance. Each demand is evaluated on its own facts, and new concerns about quality or capacity create fresh grounds for insecurity.
Supporting sources
What happens if the demanded assurance is not provided within a reasonable time?+
Failure to provide adequate assurance within a reasonable time not exceeding thirty days constitutes a repudiation of the contract. The demanding party may then treat the contract as breached and pursue remedies including cover and damages for total breach.
Supporting sources
adequate assurance
of
performance
due, see, e.g. , Lustrelon, Inc. v. Prutscher , 178 N.J.Super. 128, 139, 428 A.2d 518 (App.Div.1981), it is undisputed that Defendants did not provide a letter of credit for the warehouse…
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