Article 4

Required information on networks and stations 1. The information to be communicated to the Commission shall concern the characteristics of the measurement stations, the measurement equipment and the operational procedures followed in those stations and the structure and organization of the network to which they belong. This information shall be transmitted unless it has been made available to the Commission within the existing legislation on air quality. The information required is specified on an indicative basis in Annex II. In accordance with the procedure laid down in Article 7, the Commission shall specify the minimum information which Member States shall transmit. 2. As regards stations referred to in the first indent of Article 3 the reciprocal exchange will apply once the legislation referred to in Article 4 of the Directive on air quality is in force. 3. Six months after the entry into force of this Decision at the latest, the Commission will make available to the Member States the existing data base containing the information already collected by its services on the subject, and software enabling it to be used and updated. The Member States shall correct, amend and/or supplement that information. The updated computer files shall be sent to the Commission during the second year following the entry into force of this Decision and by 1 October at the latest. This information will be accessible to the public via an information system set up by the European Environment Agency; it may also be supplied by the Agency or by the Member States upon request. 4. In accordance with the procedure laid down in Article 7, the Commission shall specify the technical procedures for the transfer of information, taking into account the provisions of Article 1 (2). 5. Following the first sending of information by the Member States, the Commission shall include the information transmitted in its data base and prepare each year a technical report on the information collected; it shall make available to the Member States the updated 'networks-stations` data base at the latest by 1 July. The Member States shall correct, amend and/or supplement that information. The updated computer files shall be sent to the Commission by 1 October at the latest.

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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.