The risk assessment process describes the following:
Likelihood
+
Severity
=
Risk rating
&
Priority & Timeframe
Table 1
Table 2
Table 3
Table 4
Very likely
Exposure to hazard likely to occur frequently (daily - weekly)
Likely
Exposure to hazard likely to occur but not frequently (weekly - monthly)
Unlikely
Exposure to hazard unlikely to occur (monthly - yearly)
Highly unlikely
Exposure to hazard so unlikely that it can be assumed that it will not occur (yearly - 2 yearly)
Catastrophic
Hazard may cause death or total loss of one or more bodily functions (eg loss of use of arm, leg or sight). Requires more than 4 months off work.
Critically
Hazard may cause severe injury, permanent partial loss of one or more bodily functions (eg noise induced hearing loss, severe illness) or major property damage. Requires 2 weeks - 4 months off work.
Major
Hazard may cause a reportable incident, ie an incident that could result in either the employee being unable to undertake normal duties for 5 days or more or significant property damage.
Minor
Hazard may cause either minor injury or illness (1-5 days off work) or property damage.
Negligible
Hazard has very little effect on employee safety or health; a first aid only incident with less than 30 minutes off work.
OHS websites
IR websites
MAQOHSC
National Regulators Amusement Device Committee
WorkCover Corporation