(5)Article 6(2) when read in conjunction with point 9 of Section A of Annex I to Regulation (EC) No 1060/2009 requires a credit rating agency to establish a review function responsible for periodically reviewing its methodologies, models and key rating assumptions, such as mathematical or correlation assumptions, and any significant changes or modifications thereto as well as the appropriateness of those methodologies, models and key rating assumptions where they are used or intended to be used for the assessment of new financial instruments.