(7)There is a need to ensure that conditions laid down in this Regulation do not hamper the rating systems already in use by institutions, but that they instead assist with the smooth transition to the new regime, enhance legal certainty for institutions and avoid further costs to institutions. By virtue of Articles 180, 181 and 182 of Regulation (EU) No 575/2013, the data waiver permission concerns the use of two year data instead of five year data; as a result, it naturally expires three years after it is provided. Therefore, the regulatory technical standards should not affect the data waiver permissions already granted by competent authorities at the time of entry into force of this Regulation, because it would be disproportionate and would discourage use of the IRB Approach. The provisions in this Regulation are closely linked, since they all relate to the conditions under which a data waiver may be granted. To ensure coherence between those provisions, which should enter into force at the same time, and to facilitate a comprehensive view and compact access to them by persons subject to those obligations, it is desirable to include all of the regulatory technical standards required by Articles 180(3), 181(3) and 182(4) of Regulation (EU) No 575/2013 in a single Regulation.