Glossary
Set up an Internal Operations Plan (POI)

Major accident

An event such as a major emission, fire or explosion resulting from uncontrolled development during operation, causing a serious immediate or delayed danger to human health or the environment, inside or outside the establishment, and involving one or more dangerous substances or preparations.

Defense barrier

A defensive barrier is either a piece of safety equipment, or an operation performed by an operator to prevent the chain of events that could lead to a major accident.