Darien has government offices. A government is the establishment that governs and administers a city or village, a region, a state or the country. It functions in the administrative sphere through its offices, such as in Darien. These offices are of the various government departments, dealing with federal responsibilities such as your Social Security, Medicare, Unemployment, Child services, voting registration, educational grants, driving licenses and more. They are staffed with officers specialized in the particular area, who are there to assist you in your questions and queries, as well as carry out procedures as needed. The employees in such offices are known as federal civil servants. Independent agencies such as the United States Postal Service, the National Aeronautics and Space Administration (NASA), the Central Intelligence Agency (CIA), the Environmental Protection Agency, and the United States Agency for International Development may also be present.