It is not easy to exactly define the term of ALARP,but some guidelines are developed to
determine the meaning of “As Low As Reasonably Practical”. These guidelines are mainly based
on engineering judgments and codes. In addition, cost-benefit and cost-effectiveness analysis are
also used to identify the meaning of excessive investment (Aven et al., 2007; Sutton, 2010).
Some guidelines to identify the level of ALARP are:
• The use of best available technology which is adopted to install, operate and maintain in
the work environment by the people prepared to workin that environment;
• The best operations and maintenance management systems relevant to safety;
• High level of standard for maintenance of the equipment and management systems;
• The trust of employee to the low level of risk