These management systems monitor and investigate occurrences of undesirable events in order to reduce the probability of recurrence.

The risk remaining after risk reduction.

Material that is banned or controlled by legislation but is still permitted for specific uses.

Combination of the likelihood of harm and the severity of that harm.

Process that encompasses systematic hazard identification; risk assessment; hazard risk matrix; risk reduction and risk monitoring, evaluation, and review.

Risk to Life addresses fatality and injury, but excludes damage to assets or the environment where no harm results. People should only be exposed to risk of harm where some defined benefit is expected and where the risks are adequately controlled.

A level of risk that may be tolerated when it has been demonstrated to be ALARP.