Reasonably practicable

Practicable having regard to -

a)        the severity and scope of the hazard or risk concerned;

b)        the state of knowledge reasonably available concerning that hazard or risk and of any means of removing or mitigating that hazard or risk;

c)        the availability and suitability of means to remove or mitigate that hazard or risk; and

d)        the cost of removing or mitigating that hazard or risk in relation to the benefits deriving therefrom.