What constitutes a 'Safety Critical Element (SCE)'?

A Safety Critical Element (SCE) is a component, system, or piece of equipment whose failure could cause or contribute to a major accident hazard (MAH), such as a fire, explosion, or uncontrolled release of hazardous substances. SCEs are essential for preventing or mitigating the consequences of major accidents and are subject to rigorous performance standards and inspection regimes. An SCE is identifi....