For most of its history, the force majeure clause was treated as standard boilerplate: a paragraph copied from precedent, rarely negotiated and even more rarely invoked. A succession of global disruptions has changed that entirely. Parties now scrutinise these clauses at the drafting stage with the same care once reserved for indemnities and limitation of liability, and litigators have built entire practices around their interpretation.
The doctrinal starting point remains unchanged: force majeure is a creature of contract, not a general excuse implied by law. A party seeking to rely on it must show that the clause, properly construed, covers the event in question, that the event was beyond its reasonable control, and that there were no reasonable steps available to avoid or mitigate its effect. Courts have consistently resisted attempts to treat a listed event as automatically excusing performance where a causal link to non-performance is missing.
Recent disputes have sharpened attention on causation in particular. It is not enough that a qualifying event occurred somewhere in the supply chain; the party invoking the clause must demonstrate that the event actually prevented, hindered or delayed its own performance, and that performance was not merely rendered more expensive or less convenient. Clauses drafted broadly to cover events that make performance 'commercially impracticable' have fared better for parties seeking relief than clauses requiring strict impossibility, though such broad language is correspondingly harder to negotiate into a contract from a position of limited bargaining power.
Notice provisions have proven to be an unexpectedly decisive battleground. Many force majeure clauses require notice within a specified period, and courts have shown limited sympathy for parties who invoke the clause only after a dispute has crystallised, treating late or informal notice as a bar to relief regardless of the underlying merits. Drafters would be well advised to build realistic, proportionate notice mechanisms rather than punitively short deadlines that a party under genuine operational strain is likely to miss.
The broader lesson from this period of litigation is that force majeure clauses reward specificity. Generic lists of 'acts of God' and vaguely worded catch-all language leave too much to judicial construction, and construction tends to favour the party resisting the excuse. Contracts that instead define triggering events with reference to the parties' actual commercial exposure, set out a clear mitigation obligation, and specify the consequences of a qualifying event, whether suspension, renegotiation or termination, give both sides a materially more predictable outcome the next time global events intervene in private bargains.
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