# Directive (EU) 2015/2193 of the European Parliament and of the Council of 25 November 2015 on the limitation of emissions of certain pollutants into the air from medium combustion plants (Text with EEA relevance), Article 4: Aggregation

Extent: E+W+S+N.I.

A combination formed by two or more new medium combustion plants shall be considered to be a single medium combustion plant for the purposes of this Directive and their rated thermal input shall be added together for the purpose of calculating the total rated thermal input of the plant, where:
the waste gases of such medium combustion plants are discharged through a common stack, or
taking into account technical and economic factors, the waste gases of such medium combustion plants could, in the judgement of the competent authority, be discharged through a common stack.

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Source: https://www.legislation.gov.uk/eudr/2015/2193/article/4 (the official version)
Page: https://openlegislation.uk/eu-directive-2015-2193/article-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.