This interactive catalog will allow users to access many of the sources offered by GPO and most federal agenicies on the Internet. It is also important that retained or added electronic resources be supported by adequate machinery and software. As required by law, most materials are retained for five years or longer. As a depository at a large university with various needs, the collection strives to meet the research levels of the Library as a whole. Many materials are kept because of their intrinsic or historical research value.
Serials are an excellent case in point.
Most of these materials are bound and kept in perpetuity. On the other hand materials that are perceived to have periodic informational value are actively weeded as soon as they have reached their required retention periods. With the rare exception of materials that have archival value, most materials from the superseded list are discarded as soon as they are updated. Discarded titles not on the superseded list will be offered to other libraries or disposed of with the permission of the regional depository. Despite being a selective depository, the collection does carry a broad range of multi-disciplinary materials.