From the About page: "The Municipal Securities Rulemaking Board was established in 1975 by Congress to develop rules regulating securities firms and banks involved in underwriting, trading, and selling municipal securities- bonds and notes issued by states, cities, and counties or their agencies to help finance public projects. The Board, which is composed of members from the municipal securities dealer community and the public, sets standards for all municipal securities dealers. Like the Financial Industry Regulatory Authority, the Board is a self-regulatory organization that is subject to oversight by the Securities and Exchange Commission (SEC)."