Reasonably practicable

Means 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;