The Congressional Documents collection consists of House Documents, Senate Documents, and Senate Treaty Documents.
House and Senate documents contain various kinds of materials ordered to be printed by both chambers of Congress. Documents can include reports of executive departments and agencies, as well as committee prints, that were ordered to be printed as documents. Senate Treaty Documents contain the text of a treaty as it is submitted to the U. S. Senate for ratification by the President of the United States.
Congressional Documents originate from congressional committees and cover a wide variety of topics and may include reports of executive departments and independent organizations, reports of special investigations made for Congress, and annual reports of non-governmental organizations. Congressional documents, along with Congressional reports, are part of the U.S. Congressional Serial Set , commonly referred to as the Serial Set.