Article 3

Implementation and responsibilities For the implementation of this Directive, the Member States shall designate at the appropriate levels the competent authorities and bodies responsible for: implementation of this Directive, assessment of ambient air quality, approval of the measuring devices (methods, equipment, networks, laboratories), ensuring accuracy of measurement by measuring devices and checking the maintenance of such accuracy by those devices, in particular by internal quality controls carried out in accordance, inter alia, with the requirements of European quality assurance standards, analysis of assessment methods, coordination on their territory of Community-wide quality assurance programmes organized by the Commission. When they supply it to the Commission, the Member States shall make the information referred to in the first subparagraph available to the public.

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Source: EUR-Lex (Cellar) · retrieved 2026-10-12 · Text as adopted (Official Journal); later amendments are not incorporated in this text.