The OCC, Board, FDIC, and OTS (collectively, the Agencies) are amending their respective risk-based capital standards for banks, bank holding companies, and savings associations (collectively, institutions or banking organizations) with regard to the risk weighting of claims on, and claims guaranteed by, qualifying securities firms. This rule reduces the risk weight applied to certain claims on, and claims guaranteed by, qualifying securities firms incorporated in the United States and in other countries that are members of the Organization for Economic Cooperation and Development (OECD) from 100 percent to 20 percent under the Agencies' risk-based capital rules. In addition, consistent with the existing rules of the FRB and the OCC, the FDIC and OTS are amending their risk-based capital standards to permit a zero percent risk weight for certain claims on qualifying securities firms that are collateralized by cash on deposit in the lending institution or by securities issued or guaranteed by the United States or other OECD central governments.