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Two Library of Congress Rule Interpretations, 9.7B and 21.3B, offer some guidance about how to deal with remote access electronic resources based on the new, more serial-like treatment of integrating resources and the disposition of the resource's Uniform Resource Identifier (URI).
- When the original URI is no longer accessible, but the resource (or a new iteration thereof) is now accessible at another URI, you may edit the existing record to reflect this.
- When the original URI is still active but now represents an entirely different resource, rather than a new iteration of the original resource, you may create a new record for the new electronic resource. In cases where you are unable to edit, or prefer not to edit the existing record, you are encouraged to report the necessary changes to OCLC.
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Additional details regarding the treatment of integrating resources are available in a newly revised version of Cataloging Electronic Resources: OCLC-MARC Coding Guidelines.