The federal bank and thrift regulatory agencies announced yesterday that they will seek public comment on three proposed supervisory guidance documents related to the September 2006 notice of proposed rulemaking (NPR) on new risk-based capital requirements in the United States for large, internationally active banking organizations.

The September 2006 NPR detailed the agencies' proposal for implementing the new capital framework issued by the Basel Committee on Banking Supervision in 2004 (Basel II). The proposed U.S. Basel II capital framework would be mandatory for large, internationally active U.S. banking organizations and optional for other institutions. The Basel II NPR includes requirements that banking organizations would need to satisfy to calculate their risk-based capital under the proposed new capital framework. The proposed supervisory guidance provides information to assist bankers, as well as supervisors, in addressing the Basel II qualification requirements.

Two of the proposed documents issued yesterday relate to the Basel II advanced approaches for calculating risk-based capital requirements: the advanced internal ratings-based (IRB) approach for credit risk and the advanced measurement approaches (AMA) for operational risk. These guidance documents have been updated since they were previously issued for public comment in 2003 and 2004. The third document proposes guidance on the Basel II supervisory review process for assessing capital adequacy and is being issued for the first time.

The proposed supervisory guidance documents are being issued by the Federal Reserve Board, the Federal Deposit Insurance Corporation, the Office of the Comptroller of the Currency, and the Office of Thrift Supervision. The documents will be published shortly in the Federal Register.