(16)Regulation (EU) No 462/2013 introduces safeguards in Article 8(5a)(6) aa and ab and (7) of Regulation (EC) No 1060/2009 to ensure that any modification to rating methodologies does not result in less rigorous methodologies. Similarly, the Japanese legal and supervisory framework requires that a CRA have measures to ensure that the information used in determining a credit rating is of sufficient quality and that rating methodologies are rigorous and systematic.