(21)The regulatory technical standards to be adopted on the basis of the empowerments laid down in Article 26(3), third subparagraph, Article 29(4), third subparagraph, Article 30(3), third subparagraph, Article 31(4), third subparagraph, and Article 42(9), third subparagraph of Regulation (EU) 2023/2631 are closely linked to each other, since they all apply to external reviewers. To ensure coherence between those provisions and to facilitate a comprehensive view by prospective external reviewers of their obligations under Regulation (EU) 2023/2631, those regulatory technical standards should be bundled into a single Delegated Regulation.