preamble_20

Council Directive 1999/30/EC of 22 April 1999 relating to limit values for sulphur dioxide, nitrogen dioxide and oxides of nitrogen, particulate matter and lead in ambient air · European Union

(11) Whereas, in accordance with Article 12(1) of Directive 96/62/EC, the amendments necessary for adaptation to scientific and technical progress may relate solely to criteria and techniques for the assessment of concentrations of sulphur dioxide, nitrogen dioxide and oxides of nitrogen, particulate matter and lead or detailed arrangements for forwarding information to the Commission, and may not have the effect of modifying limit values or alert thresholds either directly or indirectly;

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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.