WASHINGTON — Lawmakers peppered Janet Yellen with questions concerning just about every aspect of the regulatory system at her confirmation hearing on Thursday, demonstrating the degree Congress now focuses on the Federal Reserve Board's supervisory responsibilities.

Yellen, the No. 2 at the central bank who was nominated last month for the top spot by President Obama , touched on a variety of challenges, including the Volcker Rule, efforts by regulators to be more transparent, and how to supervise systemically important nonbank firms.

Subscribe Now

Access to authoritative analysis and perspective and our data-driven report series.

14-Day Free Trial

No credit card required. Complete access to articles, breaking news and industry data.