existing plant — an industrial plant which is operational at a date 12 months after the date of notification of this Directive or, where applicable, at a date 12 months after the date of notification of any Directive amending it that relates to such plant art_2__para

handling of substances — any industrial process involving the production, the processing or use of the substances referred to in (a), or any other industrial process in which the presence of such substances is inherent art_2__para

industrial plant — a plant at which the substances referred to in (a), or any other substances containing them, are handled art_2__para

limit values — the values specified in Annex II, under heading A, in respect of the substances referred to in (a) art_2__para

new plant — -an industrial plant which becomes operational later than 12 months after the date of notification of this Directive or, where applicable, later than 12 months after the date of notification of any Directive amending it that relates to such plant, -an existing industrial plant whose capacity for handling the substances is substantially increased later than 12 months after the date of notification of this Directive or, where applicable, later than 12 months after the date of notification of any Directive amending it that relates to such plant art_2__para

quality objectives — the requirements specified in Annex II, under heading B, in respect of the substances referred to in (a) art_2__para

substances — those dangerous substances, belonging to the families and groups of substances appearing in List I in the Annex to Directive 76/464/EEC, which are specified in Annex II to this Directive art_2__para