The object of the Act is the supply, transfer and installation of module systems in the basement of the Central Library, which will be converted into a Repository. It includes systems of rolling metal archives-libraries, two-sided, mechanically moving on rails, consisting of arrays of bookcases, which in turn consist of panels (columns). For the proper and functional use of the space, fixed bookshelves, double or simple, are placed in a limited number. Three areas are formed to meet the needs of the Repository and in particular: Area for major newspapers with some 1570 meter of current shelves, for newspapers, with some 565 current meters, and an archive area of about 12,745 meters of books and periodicals.