"the 1974 Act" means the Health and Safety at Work etc. Act 1974;

"the Agreement" means the Agreement on the European Economic Area signed at Oporto on 2^nd May 1992 as adjusted by the Protocol signed at Brussels on 17^th March 1993 and adopted as respects Great Britain by the European Economic Area Act 1993.

"approved" means approved for the time being in writing;

"approved supply list" has the meaning assigned to it in regulation 4 of the Chemicals (Hazard Information and Packaging for Supply) Regulations 1994;

"biological agent" means any micro-organism, cell culture, or human endoparasite, including any which have been genetically modified, which may cause any infection, allergy, toxicity or otherwise create a hazard to human health;

"carcinogen" means -

a) any substance or preparation which is classified in accordance with the classification provided for by regulation 5 of the Chemicals (Hazard Information and Packaging for Supply) Regulations 1994 would be in the category of danger, carcinogenic (category 1) or carcinogenic (category

b) any substance or preparation -

i) listed in Schedule 8; and

ii) any substance or preparation arising from a process specified in Schedule 8 which is a substance hazardous to health.

"the Executive" means the Health and Safety Executive;

"Fumigation" means an operation in which a substance is released into the atmosphere so as to form a gas to control or kill pests or other undesirable organisms and "fumigate" and "fumigant" shall be construed accordingly;

"maximum exposure limit" for a substance hazardous to health means the maximum exposure limit for that substance set out in Schedule ! in relation to the reference period specified therein when calculated by a method approved by the Health and Safety Commission;

"member State" means a State which is a Contracting Party to the Agreement, but until the Agreement comes into force in relation to Liechenstein does not include the State of Liechenstein;

"micro-organism" means a microbiological entity, cellular or non-cellular, which is capable of replication or of transferring genetic material;

"mine" has the meaning assigned to it by section 180 of the Mines and Quarries Act 1954;

"Occupational exposure limits" for a substance hazardous to health means the standard by the Health and Safety Commission for that substance in relation to the specified reference period when calculated by a method approved by the Health and Safety Commission;

"preparation" means a mixture or solution of two or more substances;

"registered dentist" has the meaning assigned to it in section 53(1) of the Dentists Act 1984;

"registered medical practitioner" means a fully registered person within the meaning of the Medical Act 1983;

"substance" means any natural or artificial substance whether in solid or liquid form or in the form of a gas or vapour (including micro-organisms);

"substance hazardous to health" means any substance (including any preparation) which is -

whether or not the substance or preparation would be required to be classified under those Regulations; or

a) a substance which is listed in part 1 of the approved supply list as dangerous for supply within the meaning of the Chemicals (Hazard Information and Packaging for Supply) Regulation 1994 and for which and indication of danger specified for the substance in Part V of that list is very toxic, toxic, harmful, corrosive or irritant;

b) a substance specified in Schedule 1 (which lists substances assigned maximum exposure limits) or for which the Health and Safety Commission has approved an occupational exposure standard;

c) a biological agent;

d) dust of any kind, when present at a substantial concentration in the air;

e) a substance, not being a substance mentioned in paragraphs (a) to (d) above, which creates a hazard to the health of any person which is comparable with the hazards created by substances mentioned in those sub-paragraphs.

a) a reference to a numbered regulation or Schedule is a reference to the regulation or Schedule in these Regulations so numbered, and

b) a reference to a numbered paragraph is a reference to the paragraph so numbered in the regulation or Schedule in which that reference appears.