Force majeure clause
Contract Law

Force majeure clauses are designed to mitigate the affect of the doctrine of frustration.  Such clauses seek to excuse performance of parties where some intervening event which is outside the control of the contracting parties takes place.  The requirement for performance is usually postponed or suspended for a limited period of time, and may require notice in order to rely on the contractual clause.

Acts of terrorism, power failures or industrial action may amount to a force majeure event.