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- Instance call number differs from call number assigned: Determine whether the assigned call number is reasonable and fix, if necessary. If assigned call number is reasonable, make sure the Holdings Call number matches the call numbers in/on book, and return to the stacks.
- Duplicate items with different call numbers: Verify that items are in fact copies. Withdraw duplicate copy, or fix incorrect call number and add as copy 2, as appropriate.
- Oversize symbol questionable. Verify correct oversize status and fix, if appropriate.
- Partial, obsolete, or otherwise inappropriate call number: Fix call number if an updated record can provide a usable one, or send book to Cataloging to have new call number assigned.
- Same call number on two or more physical items: Verify that call numbers are accurate and that items are not in fact copies, rather than different editions or completely different titles. Fix incorrect call number, if appropriate If items are 2 identical copies of the same resource, add copy number to one of them as appropriate. If the resources are different, determine whether the duplicate call number was mistaken, or if the works are sufficiently related to have been assigned the same call numbers (e.g. exhibition catalogues for artists who exhibited once in the same year). If the sameness was a mistake, adjust the call number in the Holdings record and in the affected book and have it re-marked. If it is the result of legitimate call number duplication, select one of the books, and add an appropriate work letter (starting with "b") to the end of the date of the call number field in the Holdings Record to distinguish it from the book with the same call number. Adjust the written call number inside if applicable, and have the piece re-marked in Physical Processing.
- Spine label differs from call number written on item. Identify call number is incorrect and fix it. Consult with cataloger as needed.
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