The Commission is empowered to adopt delegated acts in accordance with Article 25 amending Annexes III to VII, IX and X to take account of technical and scientific developments regarding assessment of ambient air quality, measures to be considered for inclusion in the short-term action plans and public information.
However, the amendments may not have the effect of directly or indirectly modifying either of the following:
((a))
the limit values, target values, ozone long-term objectives, critical levels, alert thresholds and information thresholds, average exposure reduction obligations and average exposure concentration objectives specified in Annex I;
((b))
the dates for compliance with any of the parameters referred to in point (a).