Follow the guidelines in NACO Best Practices for the 024 Field. As a general rule, limit the number of 024 fields in a NACO authority record to five. Do not routinely delete or change existing 024 fields when adding new ones.
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Follow the guidelines in [https://www.loc.gov/aba/pcc/naco/documents/NACO-024-Best-Practices.pdf/view NACO Best Practices] for the 024 Field. As a general rule, limit the number of 024 fields in a NACO authority record to five. Do not routinely delete or change existing 024 fields when adding new ones.