Level 3 records are copy cataloged in the same way and using the same procedures as Level 1 and 2, but will require much closer attention due to the different cataloging rules originally practiced. In particular, the following areas will require special attention:
1. 1xx (main entry). An oversimplified definition of "main entry" might be the author or title under which the book is alphabetized within its call number classification. In other words, if all books with a given subject are grouped together under one call number, they will be subarranged by main entry by creating the last Cutter number of the call number from the main entry. The main entry is always the 1xx field, or, if no 1xx is present, the 245.The rules for determining what the main entry is have changed from pre- AACR2 to AACR2 rules. In the past, editors and corporate authors were frequently main entries. Under AACR2, such entities are rarely the main entry; the main entry usually being title instead. If it is determined that the 1xx in a record is no longer the main entry under current rules, it should be changed to a 7xx. The call number will then need to be re-Cuttered. If the original main entry was a conference and is changed to a 711, it may also be necessary to change the date in the call number, since items with a conference main entry bear the date of the conference rather than the publication date.
A summary of the rules regarding main entry is as follows:
2. Punctuation. Punctuation throughout the record should be changed to standard ISBD (AACR2) punctuation. For information on punctuation consult AACR2, 2nd ed. for special cases such as two separate works in one volume, etc.
3. Fixed field. The fixed field should be scanned and made consistent with the remainder of the record. The "Desc:" field should be changed from blank to "a" to indicate the upgrading of the record to AACR2. See "Fixed Field Reference Guide" for additional information.
4. Control fields. The 020 (ISBN), 041 and 043 fields should be checked and corrected if necessary. Two or more ISBNs may often be found in one ISBN; these should be split out into as many 020s as necessary.
5. 300 field. The paging and description will need to be modified to correspond to current LC practice. In particular, the subfield a will often count frontspieces, etc. as plates, leaves, etc. which would be ignored under current practice; obsolete illustration descriptors such as "photos," etc. may be found in the subfield b. Follow current LC practice which is to refer to all illustrations as "ill." unless all illustrations in a volume are of one kind, in which case use only that descriptor.
6. Series. Invalid forms such as 400, 410 and 411 may appear. Only 440 and 490 should appear as 4xx fields. If in doubt, discard the forms found on the printout and start from scratch using the item itself as your source. Create 440 or 490/830 fields as needed in the same way as for Level 2 cataloging. For additional information see the Series Procedures .
7. Notes. Use only the following notes for bibliographies/bibliographical references/indexes:
504 Includes bibliographical references.If a single main bibliography is present, add the page numbering after the words "bibliographical references" as follows:
504 Includes bibliographical references (p. 310-345).Other notes, such as "Reprint. Originally published:", etc. should be modified or added as needed to conform to current practice.
8. Subject headings. These will be checked "after the fact" as part of the routine INNOPAC authority exception report processing and do not usually require modification. BMS does have several local practices to watch for, however:
Watch for LC juvenile subject headings (2nd indicator "1"). If these duplicate LC subject headings (2nd indicator "0") are already in the record simply delete them; otherwise consult a Cataloger for help in converting the juvenile heading to a regular LC subject heading. Always delete the all subfields using the word "juvenile". Note that the CML branch library does use juvenile headings in their cataloging records, hence juvenile headings are permitted in the local catalog but only in records with a CML location. Refer to Curriculum Material Library (CML) Cataloging procedures for these materials. As always, delete any subject headings with 2nd indicator other than "0" or "2" (with the exception noted above). Keep National Library of Medicine subject headings with a first indicator 1 or 2 (which indicates whether it is a primary or secondary subject heading).
9. 7xx name/title entries (7xx fields with a subfield t). Be sure the subfield t does not begin with "A", "An" or "The", or their equivalents in foreign languages. This will not affect the indicators of a 7xx, neither of which is a filing indicator.
10. Indicators. Check all indicators, especially filing indicators, carefully. In particular, many older LC records omit filing indicators entirely, which will cause problems with misfiled entries in the database.
11. Multi-volume sets and added copies. With the exception of analyzed sets, processing of multi- volume or multi-copy items are considered Level 5 items (see Copy Copy Cataloging Detailed Procedures: Level 5). However, in the case of analyzed sets the series statement used to link the analytic records with the set record may change because the main entry of the cover (set) record may have changed under AACR2. Before doing analytic records, the cover record should be verified for conformity to AACR2 and the main entry and call number modified if necessary. If this appears to be the case, consult a Cataloger before proceeding.
12. Refer to Physical Processing by Staff to determine what processing, if any, is required.
