Acronyms & Terms Glossary

Independent Protection Layer

An independent protection layer (IPL) is a a system of logic solvers, a human action, or a device that reduces risk of a chemical /energy release while being independent of the initiating event. The Center for Chemical Process Safety (CCPS) requires a protection layer to achieve the following seven core attributes to be considered an IPL: independent, functional; integrity; reliable; validated; maintained and audites; access security; and management of change.