The National Archives and Records Administration (NARA) is an independent agency of the United States government charged with preserving and documenting government and historical records and with increasing public access to those documents, which comprise the National Archives. NARA is officially responsible for maintaining and publishing the legally authentic and authoritative copies of acts of Congress, presidential proclamations and executive orders, and federal regulations. The NARA also transmits votes of the Electoral College to Congress.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What is Congress responsible for preserving?
unanswerable