Civil Service: Federal employees who work for government through a competitive, not political selection process. The permanent professional branches of a government's administration, excluding military and judicial branches and elected politicians. U.S. state and local government entities often have competitive civil service systems that are modeled on the national system, in varying degrees. According to the Office of Personnel Management, as of December 2011, there were approximately 2.79 million civil servants employed by the U.S. government.
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In the 19th century U.S. civil service positions, through the spoils system, were filled based on party loyalty and political patronage.