| Class Scheme | Definition | Used for | Auto | Make rules |
| ALPHANUM | Alphanumeric | Microforms, Accession number arrangements | numbers in |z left-padded to 6 digits | |
| APPROVAL | Approval materials | Approval materials | X | call number in the format XX([catkey].[call sequence number] |
| ASIS | As is | System supplied; not in use | numbers in |z sorted character-by-character | |
| ATDEWEY | Dewey decimal classification for fiction | System supplied; not in use | adds 3-letter author Cutter or 3-letter author Cutter plus 3-letter title Cutter | |
| ATDEWEYLOC | Dewey decimal classification with location prefix | System supplied; not in use | numbers in |z left-padded; initial location characters ignored | |
| AUTO | System-generated call number | E-resources when no LC # available (EEBO, ECCO, EVANS, etc.) | X | call number in the format XX([catkey].[call sequence number] |
| AUTOEJOUR | E-journal | Used in Web2 to replace AUTO # with material type; prefer LC | X | call number in the format XX([catkey].[call sequence number] |
| DATABASE | Database | Used in Web2 to replace AUTO # with material type; prefer LC | X | call number in the format XX([catkey].[call sequence number] |
| DEWEY | Dewey decimal classification | System supplied; not in use | numbers in |z left-padded to 6 digits | |
| EBOOK | Electronic book | Used in Web2 to replace AUTO # with material type; prefer LC | X | call number in the format XX([catkey].[call sequence number] |
| ETD | Electronic thesis/dissertation | Used in Web2 to replace AUTO # with material type; prefer LC | X | call number in the format XX([catkey].[call sequence number] |
| LC | Library of Congress classification | Most stacks, reference, periodicals, e-resource materials | numeric portion of class number right-padded to 6 digits and |z left-padded to 6 digits | |
| LCPER | Library of Congress classification (for periodicals) | System supplied; not in use | numeric portion of class number right-padded to 6 digits and |z left-padded to 6 digits | |
| METCALF | Metcalf classification | Special Collections Metcalf Collection materials | numbers in |z sorted character-by-character | |
| MFTHESIS | Microform NCSU thesis/dissertation | Prefer LC class number | X | call number in the format XX([catkey].[call sequence number] |
| NCDOC | North Carolina state document classification | NCDoc microfiche; most other NCDocs now LC classed | numbers in |z sorted character-by-character | |
| NLM | National Library of Medicine classification | System supplied; not in use | numeric portion of class number right-padded to 6 digits and |z left-padded to 6 digits | |
| SUDOC | US Superintendant of Documents classification | Federal depository materials | all characters except commas are copied to the sort call number. The first comma encountered is skipped; any additional commas are replaced with spaces | |
| WEBSITE | Website | Used in Web2 to replace AUTO # with material type; prefer LC | X | call number in the format XX([catkey].[call sequence number] |
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