OCLC has now installed changes related to the OCLC-MARC Update 2016. This update implements MARC 21 Bibliographic and Holdings format changes announced by the Library of Congress in MARC 21 Updates Number 21 (September 2015; http://www.loc.gov/marc/marc21_update21_online.html)
and Number 22 (April 2016; http://www.loc.gov/marc/marc21_update22_online.html), as well as all MARC codes announced by the Library of Congress since August
2015.
In addition, OCLC has validated subfields $8 (Field Link and Sequence Number) in over 150 Bibliographic fields. Also, Bibliographic field 305 has been made obsolete and all instances in WorldCat have been converted to field 300. Members of the cooperative
are encouraged to correct any 300 fields that might have converted incorrectly or to report them to [log in to unmask].
Details of the 2016 Update are available in in OCLC Technical Bulletin 266: OCLC-MARC Format Update 2016 available at https://www.oclc.org/support/services/worldcat/documentation/tb/266.en.html,
including:
- Defining three new codes in existing positions in the Sound Recording 007 (“Remote” in Specific Material Designation, “Not Applicable” in Speed and in Kind of Material) and one new code in an existing position in the Electronic Resources 007 (“Standalone Device” in Specific Material Designation).
- Defining subfields $0 (Authority Record Control Number or Standard Number) in existing 336 (Content Type; Bibliographic and Authority), 337 (Media Type; Bibliographic and Holdings), and 338 (Carrier Type; Bibliographic and Holdings) fields.
- Defining new Bibliographic and Authority fields 348 for Format of Notated Music.
- Defining new subfields $r (Total Number of Individuals Performing alongside Ensembles) and $t (Total Number of Ensembles) in existing Bibliographic and Authority fields 382 (Medium of Performance).
- Defining subfield $w (Bibliographic Record Control Number) in existing Authority field 670 (Source Data Found).
- Defining new subfields $0 (Authority Record Control Number or Standard Number) and $2 (Source of Term) to existing Bibliographic field 753 (System Details Access to Computer Files).
- Defining subfield $8 (Field Link and Sequence Number) in over 150 Bibliographic fields where it has been defined by MARC 21.
OCLC will be incorporating the changes outlined in Technical Bulletin 266 into Bibliographic Formats and Standards (http://www.oclc.org/bibformats/en.html),
OCLC Local Holdings Format and Standards (http://www.oclc.org/holdingsformat/en.html), and other documentation. But in the meantime, please use Technical
Bulletin 266 as a supplement to the other documents.
Although MARC 21 Authority Format changes are documented in Technical Bulletin 266, the Authority record changes have not been implemented at this time but have instead been deferred to a future date to be coordinated with the Library
of Congress and the Name Authority Cooperative (NACO) of the Program for Cooperative Cataloging (PCC). LC, NACO, and OCLC will make announcements at that future date.
Please forgive any duplication of this message, which is being distributed widely.
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