A credit rating agency shall use credit rating methodologies shall that are designed and implemented in a way that enables them to:
((a))
continue to be used unless there is an objective reason for the credit rating methodology to change or be discontinued;
((b))
be capable of promptly incorporating any finding from ongoing monitoring or a review, in particular where changes in structural macroeconomic or financial market conditions would be capable of affecting credit ratings produced by that methodology;
((c))
compare credit ratings across different asset classes.