ALARP - As Low as Reasonably Practicable

ALARP is an acronym for As Low As Reasonably Practicable.

It is a fundamental principle in health and safety risk management that requires organisations to reduce risks to the lowest level that is reasonably achievable. This means continuing to implement control measures until the cost, time, effort or technical difficulty of doing more would be grossly disproportionate to the additional safety benefit gained.

ALARP does not require the complete elimination of risk, but demands that all reasonably practicable steps are taken. Examples include:

• Installing full scaffolding on a high-rise construction site when existing edge protection and harness systems already provide effective risk control
• Adding extra layers of gas detection on an offshore platform when current systems have already significantly reduced the likelihood of a major incident
• Implementing advanced dust suppression in a mine when further reductions would be extremely expensive relative to the benefit achieved

The ALARP principle is widely used in high-risk industries such as mining, oil & gas, and construction, particularly in safety cases, risk assessments, and demonstrating compliance with regulatory requirements.