2. By 1 January 2023, the Commission shall assess the need to review the provisions concerning plants which are part of SIS or MIS, as well as Part 2 of Annex II, on the basis of state-of-the-art technologies.
As part of this review, the Commission shall also assess whether for certain or all types of medium combustion plants there is a need to regulate CO emissions.
Thereafter, a review shall take place every ten years and shall include an assessment of whether it is appropriate to set stricter emission limit values in particular for new medium combustion plants.