Description of Severity Likelihood Description of Likelihood Risk Rating Death Is expected to in most H 5 circumstances: 5 - Very Once a year or more frequently Likely 4 Extensive injuries including Will probably occur in most H/M permanent disability circumstances: 4 - Likely Once every three years 3 Moderate injury or moderate Likely to occur at some time: H/M/L health impact (medical treatment Once every ten years 3- Possible including LTI) 2 Minor injury or minor health Has been to occur somewhere at M/L impact (medical treatment) some time: 2- Unlikely Once every thirty years 1 First aid injury 1- Very May occur only in exceptional M/L Unlikely circumstances: Less frequently than once every thirty years Consequence Probability 1 low 2 3 Moderate 4 Major 5 Critical (Likelihood) 1 - Rare Low Low Moderate Moderate High 2 - Unlikely Low Low Moderate High High 3 - Possible Low Moderate High High Extreme Moderate Moderate High Extreme Extreme 4 - Likely 5 Almost Moderate High High Extreme Extreme – Certain
Description of Severity Likelihood Description of Likelihood Risk Rating 5 Death 5 - Very Likely Is expected to in most circumstances: Once a year or more frequently H 4 Extensive injuries including permanent disability 4 - Likely Will probably occur in most circumstances: Once every three years H/M 3 Moderate injury or moderate health impact (medical treatment including LTI) 3- Possible Likely to occur at some time: Once every ten years H/M/L 2 Minor injury or minor health impact (medical treatment) 2- Unlikely Has been to occur somewhere at some time: Once every thirty years M/L 1 First aid injury 1- Very Unlikely May occur only in exceptional circumstances: Less frequently than once every thirty years M/L Probability (Likelihood) Consequence 1 low 2 3 Moderate 4 Major 5 Critical 1 - Rare Low Low Moderate Moderate High 2 - Unlikely Low Low Moderate High High 3 - Possible Low Moderate High High Extreme 4 - Likely Moderate Moderate High Extreme Extreme 5 – Almost Certain Moderate High High Extreme Extreme
WRA-H_S-requirements-for-applicants-who-are-NOT-PCBUs.docx