WAN MAT AZAM B WAN MAT TAHIR (F1098)
MOHAMAD RIDZUAN B ILYAS (F1061)
ABDUL MUQNI B ABDUL RAZAK (F1119)
AMIR FAIZ B MOHD ROSLI (F1113)
MOHD AZRAI’ B MOHD ZUKI (F2038)
Term And Definitions
Hazard means a source or a situation with a potential for harm in terms of human injury
or ill health, damage to property, damage to the environment or a combination of these.
Hazard control means the process of implementing measures to reduce the risk associated
with a hazard.
Hierarchy of control means the established priority order for the types of measures to be
used to control risks.
Hazard identification means the identification of undesired events that lead to the
materialisation of the hazard and the mechanism by which those undesired events could
Risk means a combination of the likelihood of an occurrence of a hazardous event with
specified period or in specified circumstances and the severity of injury or damage to
the health of people, property, environment or any combination of these caused by the
Risk assessment means the process of evaluating the risks to safety and health arising
from hazards at work.
Risk management means the total procedure associated with identifying a hazard,
assessing the risk, putting in place control measures, and reviewing the outcomes.
Purpose of HIRARC
The purpose of HIRARC are as follows:-
a. to identify all the factors that may cause harm to employees and others (the
b. to consider what the chances are of that harm actually be falling anyone in the
circumstances of a particular case and the possible severity that could come from
it (the risks); and
c. to enable employers to plan, introduce and monitor preventive measures to ensure
that the risks are adequately controlled at all times.
Planning of HIRARC Activities
H IRARC activities shall be plan and conducted –
a. for situation –
i. where hazard appear to pose significant threat;
ii. uncertain whether existing controls are adequate; or/and
iii. before implementing corrective or preventive measures.
b. by organization intending to continuously improve OSH Management System.
It should be the duty of the employer to assign a trained personnel to lead a team of
employees associated with one particular process or activity to conduct HIRARC.
Process of HIRARC
Process of HIRARC requires 4 simple steps -
a. classify work activities;
b. identify hazard;
c. conduct risk assessment (analyze and estimate risk from each hazard), by
calculating or estimating -
i. likelihood of occurrence, and
ii. severity of hazard;
d. decide if risk is tolerable and apply control measures (if necessary).