Bank regulation in the United States is highly fragmented compared with other G10 countries, where most countries have only one bank regulator. In the U.S., banking is regulated at both the federal and state level. Depending on the type of charter a banking organization has and on its organizational structure, it may be subject to numerous federal and state banking regulations. Apart from the bank regulatory agencies the U.S. maintains separate securities, commodities, and insurance regulatory agencies at the federal and state level, unlike Japan and the United Kingdom (where regulatory authority over the banking, securities and insurance industries is combined into one single financial-service agency). Bank examiners are generally employed to supervise banks and to ensure compliance with