(11)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. There are some notable differences between the Argentinian legal and supervisory framework and the Union framework. Although the Argentinian legal and supervisory framework contains the requirements that credit ratings are only issued in accordance with published methodologies and that methodologies are reviewed on a periodic basis, there is no explicit requirement for CRAs to consult on changes to or to correct errors in their methodologies. There is also no requirement to inform all affected rated entities of errors in a rating methodology.