The Securities and Exchange Commission has created a new group of examiners to oversee credit rating agencies, which came under sharp criticism for their role during the financial crisis.

The SEC has already adopted a number of measures to increase transparency at credit rating agencies, which are paid by the issuers they rate. But greater oversight is needed with officials expected to conduct both routine and special examinations of their activities, Ms Schapiro is set to tell a Congressional oversight hearing on Tuesday.