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Internal Revenue Service (IRS)

Last Updated March 20, 2009


The Internal Revenue Service is the nation's tax collection agency and administers the Internal Revenue Code enacted by Congress.

In its role in administering the tax laws enacted by the Congress, the IRS must take the specifics of these laws and translate them into detailed regulations, rules and procedures. The Office of Chief Counsel fills this crucial role by producing several different kinds of documents and publications that provide guidance to taxpayers, firms and charitable groups.


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