# The Control of Vibration at Work Regulations (Northern Ireland) 2005, Regulation 2: Interpretation


(1) In these Regulations—
“daily exposure” means the quantity of mechanical vibration to which a worker is exposed during a working day, normalised to an 8-hour reference period, which takes account of the magnitude and duration of the vibration;
“emergency services” include—
(a) police, fire, rescue and ambulance services;
(b) Her Majesty’s Coastguard;
“enforcing authority” means the Executive or district council, determined in accordance with the provisions of the Health and Safety (Enforcing Authority) Regulations (Northern Ireland) 1999;
“exposure action value” means the level of daily exposure set out in regulation 4 for any worker which, if reached or exceeded, requires specified action to be taken to reduce risk;
“exposure limit value” means the level of daily exposure set out in regulation 4 for any worker which must not be exceeded, save as set out in regulation 6(5);
“hand-arm vibration” means mechanical vibration which is transmitted into the hands and arms during a work activity;
“health surveillance” means assessment of the state of health of an employee, as related to exposure to vibration;
“mechanical vibration” means vibration occurring in a piece of machinery or equipment or in a vehicle as a result of its operation;
“risk assessment” means the assessment of risk required by regulation 5;
“territorial sea” means the territorial sea of the United Kingdom adjacent to Northern Ireland and “within the territorial sea” includes on, over and under it;
“whole-body vibration” means mechanical vibration which is transmitted into the body, when seated or standing, through the supporting surface, during a work activity or as described in regulation 5(3)(f); and
“working day” means a daily working period, irrespective of the time of day when it begins or ends, and whether it begins or ends on the same calendar day.
(2) In these regulations, a reference to an employee being exposed to vibration is a reference to the exposure of that employee to mechanical vibration arising out of or in connection with his work.

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Source: https://www.legislation.gov.uk/nisr/2005/397/regulation/2 (the official version)
Page: https://openlegislation.uk/control-of-vibration-at-work-regulations-northern-ireland-2005/regulation-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.