060 - NLM Call Number

"The National Library of Medicine (NLM), on the campus of the National Institutes of Health in Bethesda, Maryland, has been a center of information innovation since its founding in 1836. The world’s largest biomedical library, NLM maintains and makes available a vast print collection and produces electronic information resources on a wide range of topics that are searched billions of times each year by millions of people around the globe. It also supports and conducts research, development, and training in biomedical informatics and health information technology."

The NLM Classification, which is a scheme for the shelf arrangement of medical literature in libraries, is maintained and developed by the Cataloging and Metadata Management Section of the NLM. The call numbers assigned using this classification are found in the 060 tag.

The structure of the 060 is very similar to other tags that contain classification numbers:

• subfield a is the full call number (classification + item number)
  
• NLM doesn't use subfield b
• the first indicator tells you if the item is in the NLM collection
• the second indicator tells you if the number was assigned by the NLM or by another agency using their classification system