(3)The fee information to be submitted by registered credit rating agencies should allow ESMA to identify credit ratings that would require more in-depth scrutiny and possible further supervisory follow-up actions. Similar fees should be charged for credit ratings and ancillary services with similar features, differences in fee levels being justified on the basis of cost differences. The information collected should allow ESMA to identify, for each registered credit rating agency, comparable services and their respective fees and therefore to detect any significant deviations in fees charged. ESMA can thereafter undertake investigations to verify that any such fees are set according to lawful pricing policies and procedures and differences in fee levels based on cost differences are consistent with the principles of fair competition, are not due to conflicts of interest and do not depend on the results or outcome of the work performed.