I think you are asking about Tenure of Office Act of 1867 which led to the impeachment of Andrew Johnson. It is no longer in effect.
Officials are voted on by the public or appointed by other officials who are themselves appointed by the public.
which congressional body indictments of accused federal officials, like president?
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Australia's officials are appointed by the public service who are appointed by the government under the rules of the constitution.
The 435 members of the House of Representatives aren't appointed officials. They are elected by the voters of their States and Congressional Districts (within the states) to two-year terms of office.
Justices
An appointed Monarch and appointed Officials
The Virgina company of London
Ulemas
president
The two-year period between congressional elections is known as a term. This is the period which the elected officials will hold office.
The head of the EPA is appointed by the President, but does not have to go through a Senate confirmation hearing, something unique to appointed officials.