The secretary of the Senate and the clerk of the House are responsible for collecting "all the non-current records of the Congress and of each congressional committee and transfer[ring] them to the National Archives for preservation . . ." (42 U.S.C. 2118). The Senate archival collections document floor activities, committee activities, and general Senate administration.
The Senate transfers approximately 1,500 cubic feet of records per year to the Center for Legislative Archives at the National Archives .
Guide to Records of the United States Senate at the National Archives (NARA)
Federal Web Harvests capture a one-time snapshot of agency public websites.
The records maintained within a senator's office are the property of the member. Most senators donate their papers to a research repository in their home state when they leave office.
The Senate Historical Office maintains a large collection of images that documents the institutional history of the Senate and the careers of senators.
Interested in related materials? Take a look at these Virtual Reference Desk subjects for more information.