(1) Belgium and Luxembourg shall define and communicate to the Commission corrective measures designed to achieve the consistency of national cost-efficiency performance targets with the Union-wide cost-efficiency performance targets for the third reference period within three months from the date of the adoption of this Decision.
(2) Belgium and Luxembourg shall start applying those corrective measures in respect of skeyes and the Maastricht Upper Area Control Centre (‘MUAC’) in RP3. Those measures shall result in the reduction of the determined costs for the Belgium-Luxembourg en route charging zone by an amount leading to the consistency of the national cost-efficiency performance targets with the Union-wide cost-efficiency performance targets. That amount will be more precisely determined by Belgium and Luxembourg on the basis of the results of the compliance review referred to in recital (131) of this Decision and reviewed by the Commission as a part of its assessment under Article 15(7) of Commission Implementing Regulation (EU) 2019/317, taking account of the evidence resulting from that compliance review. The corrective measures shall lead to the reduction of the operating costs of both skeyes and MUAC.
(3) In defining the corrective measures, Belgium and Luxembourg may also take account of the proposed additional measures set out in the Annex.
(4) Belgium and Luxembourg shall include information in their respective performance plans demonstrating that skeyes and MUAC will effectively implement the corrective measures.