From GPO, Public and Private Laws: “Public and private laws are prepared and published by the Office of the Federal Register (OFR), National Archives and Records Administration (NARA). GPO Access contains the text of public and private laws enacted from the 104th Congress to the present. The database for the current session of Congress is updated when the publication of a slip law is authorized by OFR. Documents are available as ASCII text and Adobe Portable Document Format (PDF) files.”