The following codes are the new book prefixes that will be used for the new collections added to BARD. These prefixes appear in BARD, Voyager, download reports issued to the network, and MARC record sets distributed to the network.
There are currently forty-three network libraries that have locally produced books in the International Union Catalog. The book numbers are assigned by the cooperating libraries, and there is no standard convention used in the network. Too many new book-number prefixes may be confusing in a service designed primarily for the general readership (BARD), so this policy groups the locally produced books of different network libraries together under the common prefixes below. The alternative would be dozens of new prefixes in BARD. Voyager records will reference the original local book number in addition to the newly assigned number used in BARD.
Full MARC records for locally produced network books in BARD will be made available for network libraries. The original network library book numbers will be included in MARC records in a specially defined MARC field along with the CMLS code of the contributing library. This will allow contributing libraries to map the original numbers to the new NLS-assigned book numbers.
In order to reliably identify magazine issues in download statistical reports, magazine issues will use the above prefixes. The rest of the magazine number will consist of the CMLS code and issue date, comprising the year, month, and, for weeklies, the day of the issue (e.g., DB NAT7_2011-06-06). New CMLS codes will be created for the locally produced magazines that appear in BARD.