Technical Bulletins

All Technical Bulletins have been incorporated into Bibliographic Formats and Standards and/or Authorities: Formats and Standards. Technical Bulletins not listed are obsolete. Please discard them or mark them obsolete.

In the table below, the date format is YYMM. Example: July 2008=0807

No. Date Title Documentation Affected
264 1408 OCLC-MARC Format Update 2014, Phase 2 Bibliographic Formats and Standards, Authorities: Formats and Standards, OCLC-MARC Records, Connexion browser documentation, Connexion client documentation, Searching WorldCat Indexes 
263 1405 OCLC-MARC Format Update 2014, Phase 1 Bibliographic Formats and Standards, Authorities: Formats and Standards, OCLC-MARC Records, Connexion browser documentation, Connexion client documentation, Searching WorldCat Indexes 
262 1306 OCLC-MARC Format Update 2013  Bibliographic Formats and Standards, Authorities: Formats and Standards, OCLC-MARC Records, Connexion browser documentation, Connexion client documentation, Searching WorldCat Indexes 
261 1205 OCLC-MARC Format Update 2012  Bibliographic Formats and Standards, Authorities: Formats and Standards, OCLC-MARC Records, Connexion browser documentation, Connexion client documentation, Searching WorldCat Indexes 
260 1108 OCLC-MARC Format Update 2011  Bibliographic Formats and Standards, Authorities: Formats and Standards, OCLC-MARC Records, Connexion browser documentation, Connexion client documentation, Searching WorldCat Indexes, OCLC Local Holdings Format and Standards 
259 1104 Authorities System Changes (PDF only) Connexion client documentation, Connexion browser documentation, Connexion Client Authorities Quick Reference, Authorities: Formats and Standards 
258 1005 OCLC-MARC Format Update 2010 including RDA Changes  Bibliographic Formats and Standards, Authorities: Formats and Standards, OCLC-MARC Records, Connexion browser documentation, Connexion client documentation, Searching WorldCat Indexes 
257 0907 OCLC-MARC Format Update 2009  Authorities: Formats and Standards, OCLC-MARC Records, Connexion browser documentation, Connexion client documentation, Searching WorldCat Indexes 
256 0807 Abbreviated-Level Record Guidelines  Connexion browser documentation, Connexion client documentation  
255 0805 OCLC-MARC Format Update 2008  Authorities: Formats and Standards, OCLC-MARC Records, Connexion browser documentation, Connexion client documentation, Searching WorldCat Indexes 
254 0705 OCLC-MARC Format Update 2007 and Institution Records to Accommodate the RLG Union Catalog  OCLC-MARC Records, Connexion browser documentation, Connexion client documentation 
253 0609 ISBN and OCLC Number Changes  Authorities: Formats and Standards, OCLC-MARC Records, Searching WorldCat Indexes 
252 0605 OCLC-MARC Format Update 2006  Authorities: Formats and Standards, OCLC-MARC Records, Searching WorldCat Indexes 
250 0310 Parallel Records  Enhance Training Outline 
249 0304 OCLC-MARC Format Update 2003  Authorities: Formats and Standards, OCLC-MARC Records 
247 0211 OCLC-MARC Format Update 2002  Cataloging Electronic Resources: OCLC-MARC Coding Guidelines, OCLC-MARC Records 



We are a worldwide library cooperative, owned, governed and sustained by members since 1967. Our public purpose is a statement of commitment to each other—that we will work together to improve access to the information held in libraries around the globe, and find ways to reduce costs for libraries through collaboration. Learn more »