The National Library of Medicine in mid-2001 announced the online beta version of the National Library of Medicine Classification. The scheme is a broad system of classification and is intended for the shelf arrangement of all library materials within the field of medicine and related sciences. The NLM Classification utilizes schedules excluded from the Library of Congress Classification (LCC) schedules and is intended to be used with the LCC. Web-based access to the Classifications provides users with flexible maneuverability through the schedules and their index. The new searching tools enhance access and present the data in new ways, relating concepts and class numbers to one another. The Library expects to have an updated version of the Classification available sometime in 2002.