Is an exceptional event or circumstance that:

  • could not have been reasonably foreseen, and/or
  • is beyond the control of the parties, and/or
  • could not reasonably have been avoided or overcome

Such an event may include but is not limited to:

  1. Acts of war (declared or not), invasion, and hostile acts of foreign enemies
  2. Insurrection, rebellion, revolution, military or usurped power, war (whether declared or not), terrorism
  3. Civil commotion, disorder, riots, strike, lockout by persons other than the contractor’s employees or his subcontractors
  4. Sonic shock waves caused by aircraft or other aerial devices, and ionising or radioactive contamination
  5. Explosive materials, except where attributable to the contractor’s use of such technology

Natural catastrophes including earthquakes, floods, hurricanes, or volcanic activity