A government shutdown occurs when the U.S. government temporarily halts its operations due to a lack of funding. This situation typically arises when Congress fails to pass necessary budget legislation or a continuing resolution to fund government activities. During a shutdown, many federal employees are furloughed, and non-essential services are suspended. Essential services, such as national security and emergency services, continue to operate, but many public services may be delayed or unavailable. The shutdown can impact various sectors, including national parks, federal agencies, and government contractors, leading to economic consequences and disruptions for citizens relying on government services.