Update No. 15 (September 2012) is now available on the MARC website (www.loc.gov/marc/). It is integrated into the documentation for each of the Online Full and Concise formats that are maintained on that site -- the Bibliographic format, Authority format, Holdings format, Classification format, and Community Information format. The documentation includes changes made to the MARC 21 formats resulting from proposals which were considered by the ALA ALCTS/LITA/RUSA Machine-Readable Bibliographic Information Committee (MARBI), the Canadian Committee on MARC (CCM) and the BIC Bibliographic Standards Group in June 2012.If you want to update your print copies read that last paragraph again. The update in not one document you can print out like all the others listed in the update section at the MARC website.
The changes are indicated in red. Each format also has an appendix,"Format Changes for Update No. 15 (September 2012)" that lists the changes that comprise the update. The Web version of the formats is the official version and is considered the start for implementation planning for MARC 21. Users are not expected to begin using the new features in the format until 60 days from the date of this announcement: September 19, 2012. For more information about format documentation
see: http://www.loc.gov/marc/status.html
Users who want a print version of changed fields will be able to print them from the Format web pages (CDS will not be selling a print version of the update). Changes to the MARC 21 Formats that resulted from Update No. 15 (September 2012) are displayed in red print. The "Format Changes" appendixes described above also incorporate a print guide following the list of changes, to facilitate easy printing.