From the GPO:
The U.S. Government Publishing Office (GPO) releases an initial set of 40 Statute Compilations as a pilot on GPO’s website that offers public access to Federal Government information. These publications are compilations of public laws that either do not appear in the U.S. Code or that have been classified to a title of the U.S. Code that has not been enacted into positive law. Each Statute Compilation incorporates the amendments made to the underlying statute since it was originally enacted.
GPO is partnering with various Congressional offices on this project, including the Office of the Legislative Counsel of the U.S. House of Representatives, the Office of the Legislative Counsel of the U.S. Senate, the Clerk of the House, and the Secretary of the Senate.
Additional Statute Compilations will be added to govinfo over the next several months. The next phase of this project will be to convert legacy Statute Compilations file formats into United States Legislative Markup (USLM) XML and provide access to those files as bulk data.
Direct to 40 Statute Compilations