A force majeure clause (French for “superior force”) is a contract provision that excuses one or both parties from performing their contractual obligations when unforeseen events beyond their control — such as natural disasters, war, terrorism, government actions, or pandemics — make performance impossible, illegal, or commercially impracticable. It allocates risk and provides a framework for suspension, extension, or termination of obligations.
Force majeure clauses serve a critical function in commercial contracts: they provide certainty and fairness when the unexpected occurs. Without such a clause, a party prevented from performing by a hurricane, war, or pandemic would be in breach of contract, potentially liable for substantial damages. Common law doctrines of “impossibility” and “frustration of purpose” offer limited relief — courts apply them narrowly, and they rarely excuse performance. A well-drafted force majeure clause, by contrast, gives parties clear guidance on what events qualify, what notice must be given, and what happens to the contract during and after the event.
The COVID-19 pandemic brought force majeure clauses into sharp focus. Thousands of contracts were invoked, leading to litigation over whether “pandemic” was explicitly listed, whether government lockdown orders qualified as “government action,” and whether mere economic hardship (reduced demand) was sufficient. The lesson: specificity matters. Courts interpret force majeure clauses narrowly, giving effect only to events expressly listed or clearly within the clause’s scope.
Force majeure is not automatic. The party seeking relief must prove: (1) a qualifying event occurred, (2) the event was unforeseeable and beyond its control, (3) it could not have mitigated the impact, and (4) performance was actually prevented — not merely made more difficult or expensive. The burden of proof lies on the party invoking force majeure.
Earthquakes, floods, hurricanes, tornadoes, wildfires, droughts, volcanic eruptions, and severe storms. These are the most commonly listed events and are generally accepted by courts.
War (declared or undeclared), invasion, armed conflict, terrorism, sabotage, civil war, rebellion, revolution, and military coup. Often includes threats of war.
Embargoes, sanctions, export/import restrictions, new laws or regulations, expropriation, nationalisation, closure of borders, and mandatory business shutdowns.
Widespread disease outbreaks (COVID-19, SARS, Ebola), government-imposed lockdowns, quarantine orders, and travel bans. Many contracts now explicitly list “pandemic.”
Strikes, lockouts, work stoppages, and labour shortages. Often excludes strikes specific to the party or its subcontractors (i.e., those within control).
Fire, explosion, nuclear or chemical contamination, cyber-attacks, widespread IT outages, supply chain failures (if beyond control), and transportation curtailment.
Courts consistently hold that the following do NOT qualify unless expressly listed: economic downturns, market price increases, currency fluctuations, reduced demand, increased costs of raw materials, supplier insolvency (unless due to a force majeure event), and general business slowdowns. Mere impracticability or unanticipated difficulty is not enough — the event must make performance objectively impossible.
A specific list of qualifying events (natural disasters, war, government action, pandemic, etc.) plus a catch-all phrase like “or any other event beyond the reasonable control of the party.”
Specify timeframe (e.g., “within 7 days of occurrence”), content of notice (description of event, expected impact, estimated duration), and method (written notice).
The affected party must use reasonable efforts to mitigate the impact of the force majeure event and resume performance as soon as practicable.
Clearly state which obligations are suspended (e.g., delivery deadlines, payment terms) and for how long. The contract is not terminated but paused.
Address whether payments continue (e.g., in long-term supply or construction contracts). If no performance is possible, usually payment obligations are suspended as well.
If the force majeure event continues beyond a defined period (e.g., 30, 60, or 90 days), either party may terminate the contract without liability.
Define the degree of impact required: “prevents” (strict), “hinders,” “delays,” or “makes commercially impracticable.” Lower thresholds give more protection but are harder to enforce.
Specify which jurisdiction’s law governs the interpretation of force majeure — critical because civil law systems (France, Germany) treat force majeure more expansively than common law systems (US, UK).
Always include a catch-all phrase (“or any other event beyond the reasonable control of the party”) to cover unforeseen events not explicitly listed. Without it, courts will interpret the clause narrowly, applying the principle expressio unius est exclusio alterius (the express mention of one thing excludes others). For contracts likely to be affected by government actions, explicitly list “changes in law,” “export/import restrictions,” and “tariffs.”
Interpretation of force majeure clauses varies significantly by jurisdiction. Understanding these differences is essential for cross-border contracts.
| Jurisdiction | Approach | Key Considerations |
|---|---|---|
| United States (New York) | Narrow interpretation | Courts only excuse performance if the specific event is listed. General language like “any event beyond control” is insufficient. Kel Kim Corp. v. Central Markets, Inc. COVID-19 was recognized where “natural disaster” was listed (JN Contemporary Art LLC v. Phillips Auctioneers). |
| England & Wales | Contractual interpretation | No common law doctrine of force majeure — only what is written in the contract. If no clause, parties must rely on narrow “frustration” doctrine. Courts interpret clauses strictly but give effect to express terms. |
| France (Civil Law) | Broader doctrine | Force majeure is implied by law (French Civil Code, art. 1218). Requires event to be unforeseeable, unavoidable, and external, making performance impossible. No need for explicit clause, though clauses are common. |
| Germany | Similar to France | Doctrine of “Störung der Geschäftsgrundlage” (disruption of basis of transaction) — broader than common law impossibility. Party may request contract adaptation if circumstances fundamentally changed. |
| International Arbitration | ICC, UNCITRAL, UNIDROIT Principles | UNIDROIT Principles Article 7.1.7 recognises force majeure as “an impediment beyond its control” that could not be foreseen or overcome. Tribunals assess reasonableness in context. |
Review the clause: Is the event explicitly listed or within a catch-all provision? Is performance truly prevented (not just delayed or more expensive)? Document the impact.
Notify the counterparty within the timeframe specified (typically 7–14 days). Include: description of the event, its impact on performance, expected duration, and steps being taken to mitigate.
Take reasonable steps to reduce the impact. Keep records of all communications, costs incurred, and efforts made. Failure to mitigate may waive force majeure protection.
Provide ongoing updates on the status of the event and expected resumption of performance. Silence may be interpreted as waiver or abandonment of the claim.
Once the force majeure event ends, notify the counterparty and resume full performance. If the clause allows termination after a period, decide whether to terminate or continue.
| Aspect | Force Majeure (Contractual) | Impossibility (Common Law) | Frustration of Purpose |
|---|---|---|---|
| Source | Express contract clause | Common law doctrine (judge-made) | Common law doctrine |
| Standard | As defined in clause — typically “prevents,” “hinders,” or “makes impracticable” | Strict — performance must be objectively impossible, not merely difficult or expensive | Radical change in circumstances renders performance worthless to one party |
| Burden of proof | Party invoking clause proves event qualifies under clause language | High — must show impossibility was not self-induced and could not have been foreseen | Very high — courts rarely find frustration |
| Effect | Suspension, extension of time, or termination as provided in clause | Excuses performance entirely; contract terminated | Contract terminated; parties discharged |
| Typical outcomes | Often successful if clause well-drafted | Rarely successful — e.g., destruction of subject matter, death of person needed for performance | Very rarely successful — e.g., coronation cases (renting flat to watch parade that was cancelled) |
The pandemic triggered thousands of force majeure claims and produced important guidance for drafters:
Add to your force majeure clauses: (1) “pandemic, epidemic, or widespread disease outbreak,” (2) “government-imposed quarantine, lockdown, or business closure,” (3) “travel bans or border closures,” (4) “failure of key suppliers due to force majeure,” and (5) “cyber-attack or widespread IT infrastructure failure.” Also consider adding a “material adverse change” clause for economic impacts not covered by force majeure.

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