ITIL Emergency Change
An ITIL emergency change is the highest priority change that can be defined in an organization.
Emergency changes are defined as changes that need to be evaluated, assessed and either rejected or approved in a short space of time.
Simply defining a change as an emergency does not automatically entail the change should be implemented. The Emergency Change Advisory Board (ECAB) will assess the change and provide advice to the delegated person responsible for approving or rejecting emergency changes.
The Standard Change is one of three change types that are defined in ITIL version 3. The ITIL standard change, the normal change and the emergency change.