A U.S. government shutdown occurs when Congress fails to pass appropriations bills or temporary funding measures to finance federal government operations for the new fiscal year. When this happens, all non-essential government functions are frozen, causing many federal agencies to cease operations partially or entirely until funding is restored. Essential services related to the safety of human life and protection of property, such as the FBI, CIA, air traffic control, and military operations, continue to operate. However, non- essential employees are typically furloughed (temporarily sent home) without pay, although they are often paid retroactively once the shutdown ends. Programs like Social Security and Veterans' health care usually continue during a shutdown, but many other services, including some administrative and regulatory functions, are interrupted or delayed. Shutdowns can have widespread impacts on government workers, public services, and citizens relying on federal programs until a funding deal is reached.
