0 Regular
1 Rec or Juvenile
2 Reference, Index, Microfiche and Microfilm

3 Periodical
4 Special and Archive
5 A/V Material

6 Document
7 Diagnostic Test
8 Extra Protocol

9 Restricted Test
10 2-Hour
11 24-Hour

12 3-Day
13 A/V Equipment
15 Lib. Use Only

Last Update: February 15, 2006