SERIES (4XX, 8XX)

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On Oct. 24, 2008, the Library of Congress implemented the decision of MARBI (Machine-Readable Bibliographic Information Committee) to make the 440 field obsolete.

Our policy is that we will no longer use the 440 field in original records. However, we will not change 440s to 490/8XX fields in copy cataloging records unless the series needs to be edited anyway.

The information below describes the historical use of the 440 field and the continuing use of the 490 and 8XX fields.

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