Financial regulatory policies are of interest to Congress because firms, consumers, and governments fund many of their activities through banks and securities markets. Furthermore, financial instability can damage the broader economy. Financial regulation is intended to protect borrowers and investors that participate in financial markets and mitigate financial instability. This report provides an overview of the regulatory policies of the agencies that oversee banking and securities markets and explains which agencies are responsible for which institutions, activities, and markets. Banking U.S. banking regulation traditionally focuses on prudence. Banks' business decisions are regulated for safety and soundness and adequate capital. In addition, banks are given access to a lender of last resort, and some bank creditors are provided guarantees (deposit insurance). Regulating the risks that banks take is believed to help smooth the credit cycle. The credit cycle refers to periodic booms and busts in lending. Prudential safety and soundness regulation and capital requirements date back to the 1860s when bank credit formed the money supply. The Federal Reserve as lender of last resort was created following the Panic of 1907. Deposit insurance was established in the 1930s to reduce the incentive of depositors to withdraw funds from banks during a financial panic. Securities, Derivatives, and Similar Contract Markets Federal securities regulation has traditionally focused on disclosure and conflicts of interest, rather than on prudence. Securities regulation is typically designed to ensure that market participants have access to enough information to make informed decisions, rather than to limit the riskiness of the business models of publicly traded firms. Firms that sell securities to the public must register with the Securities and Exchange Commission (SEC). SEC registration in no way implies that an investment is safe, only that material risks have been disclosed. The SEC also registers several classes of securities market participants and firms. It has enforcement powers for certain types of industry misstatements or omissions and for certain types of conflicts of interest. Derivatives trading is supervised by the Commodity Futures Trading Commission (CFTC), which oversees trading on the futures exchanges, which have self-regulatory responsibilities as well. The Wall Street Reform and Consumer Protection Act (Dodd-Frank Act) required more disclosures in the over-the-counter derivatives market than prior to the financial crisis and has granted the CFTC and SEC authority over large derivatives traders. Government Sponsored Enterprises The Federal Housing Finance Agency (FHFA) oversees a group of government-sponsored enterprises (GSEs). Two of the GSEs, Fannie Mae and Freddie Mac, securitize residential mortgages, and they were placed in conservatorship following mortgage losses in 2008. In the conservatorship, the Treasury provides financial support to the GSEs and FHFA and Treasury have managerial control over the enterprises. FHFA also regulates the Federal Home Loan Bank (FHLB) system. Changes Following the 2008 Financial Crisis The Dodd-Frank Act created the interagency Financial Stability Oversight Council (FSOC) and authorized a permanent staff to monitor systemic risk and consolidated bank regulation from five agencies to four. The DFA granted the Federal Reserve oversight authority and the Federal Deposit Insurance Corporation (FDIC) resolution authority over the largest financial firms. The DFA consolidated consumer protection rulemaking, which had been dispersed among several federal agencies, in the new Consumer Financial Protection Bureau. Special Topics The appendices in this report include additional information on topics, such as the regulatory structure prior to the Dodd-Frank Act, organizational differences among financial firms, and the rating system that regulators use to evaluate the health of banks.