(13)The provisions of this Regulation are closely linked to each other, since they all deal with elements to be included in changes of a trading desk portfolio’s value for the purposes of calculating the own funds requirements for market risks using the alternative internal model approach. To ensure coherence between those provisions, which should enter into force at the same time, to facilitate a comprehensive understanding of those provisions and to ensure easy access to them by persons subject to the obligations set out within, it is desirable to include all the regulatory technical standards required by Article 325bf(9), third subparagraph, and Article 325bg(4), third subparagraph, of Regulation (EU) No 575/2013 in a single Regulation.