This Practice Note discusses force majeure clauses, which allow the parties to a contract to allocate the risk of certain force majeure events such as acts of God, hurricanes, earthquakes, and other natural disasters, epidemics, pandemics, quarantines, terrorism, government acts, embargos, labour strikes and lockouts, and other events beyond the control of the parties. Force majeure clauses work to mitigate the negative effects of force majeure events, including business interruption and supply chain disruption.