QEHSRisk
As Low As Reasonably PracticableALARP
The UK regulatory standard for demonstrating risk has been reduced to an acceptable level.
ALARP requires that risks be reduced until the cost of further reduction is grossly disproportionate to the benefit. It sits between broadly acceptable risk (<10⁻⁶/yr fatality) and intolerable risk (>10⁻³/yr). The Health and Safety Executive (HSE) publishes risk tolerability criteria. ALARP is the dominant framework in UK, Australia, and Singapore; the US uses feasibility-based cost-benefit for OSHA standards.