This list identifies data elements from Update no. 4 (October 2003) to the MARC 21 Formats for Bibliographic and Authority data that will become valid in LC's system no earlier than November 2004 (unless otherwise specified below).
1. NEW BIBLIOGRAPHIC RECORD ELEMENTS
This list is provided to assist in evaluating the impact on automated systems as these elements could be present in records issued by the Library of Congress; they do not necessarily reflect values that will be actively supplied by LC cataloging staff. These elements are fully documented in the MARC 21 Format for Bibliographic data (http://www.loc.gov/marc/bibliographic).
CONTINUING RESOURCES 006/03 and CONTINUING RESOURCES 008/20 ISSN Center
Position changed to undefined.
022 - International Standard Serial Number
new subfield: $2 Source
352 - Digital Graphic Representation
new subfield: $q Format of the digital image
365 - Trade Price
366 - Trade Availability Information
538 - System Details Note
new subfield: $i Display text
new subfield: $u Uniform Resource Identifier
new subfield: $3 Materials specified
773 - Host Item Entry
new subfield: $q Enumeration and first page
2. NEW AUTHORITY RECORD ELEMENTS
none at this time (see section 4 below)
3. BIBLIOGRAPHIC ELEMENTS FOR FUTURE IMPLEMENTATION
The following changes left over from Update No. 2 (October 2001) to the MARC 21 Format for Bibliographic Data will still not be implemented at the Library of Congress at this time. A future notice will be issued when implementation details have been set.
LEADER/07 (Bibliographic level)
new code: i (Integrating resource)
260 - Publication, distribution, etc. (Imprint):
change from non-repeatable to repeatable
define first indicator (Sequence of publishing statements) with values:
[blank] (Not applicable/No information provided/Earliest available publisher)
2 (Intervening publisher)
3 (Current/latest publisher)
4. AUTHORITY ELEMENTS FOR FUTURE IMPLEMENTATION
The following changes from Update No. 3 (October 2002) and Update No. 4 (October 2003) to the MARC 21 Format for Authority Data will not be implemented at the Library of Congress at this time. A future notice will be issued when implementation details have been set.
024 - Other Standard Identifier : new field
148 - Heading--Chronological term : new field
448 - See from tracing--Chronological term : new field
548 - See also from tracing --Chronological term : new field
748 - Established heading linking entry--Chronological term : new field
670 - Source data found
new subfield: $u (Uniform Resource Identifier)
July 22, 2004