133. In this Chapter

“exposure action value” means the level of daily vibration exposure for any employee which if exceeded, requires specified action to be taken to reduce risk;

“exposure limit value” means the level of daily vibration exposure for any employee which must not be exceeded, save as set out in Regulation 142(2);

“hand-arm vibration” means mechanical vibration that, when transmitted to the human hand-arm system, entails risks to the safety and health of employees, in particular vascular bone or joint, neurological or muscular disorders;

“mechanical vibration” means vibration occurring in a piece of machinery or equipment, or in a vehicle as a result of its operation;

“whole-body vibration” means the mechanical vibration that, when transmitted to the whole body, entails risks to the safety and health of employees, in particular lower-back morbidity and trauma of the spine.