NACO Participants' Manual -3rd Edition - Library of Congress

Fixed FieldsMost fixed fields in authority records are either constants or are system supplied. The onlyfixed fields catalogers will routinely need to determine are:1. Descriptive Cataloging Code (008/10)-- code a for earlier rules (not used for newly created NARs)-- code b for AACR1 (not used for newly created NARs)-- code c for AACR2-- code d for AACR2-compatible headings (used only for a newly established NARfor a uniform title entered under a personal or corporate name that is alreadycoded d, or for a subordinate unit entered under a corporate name alreadycoded d)2. Undifferentiated Personal Name (008/32)-- code a for a differentiated (i.e., representing one person) personal name or aname-title entered under a personal name-- code b for an undifferentiated (non-unique) personal name (i.e., a nameheading that represents more than one person with the same name, accordingto AACR 22.20)-- code n otherwise (i.e., for a corporate, conference or geographic name)3. Reference Evaluation (008/29)-- code a if the record includes cross-references (4XX or 5XX)-- code b for unevaluated references that must be revised if record is beingupdated; do not use in newly-created records-- code n if there are no cross-references4. Level of Establishment (008/33)-- code a for full-level-- code c for provisional level-- code d for preliminary levelSee Appendices I and II of this manual for examples of RLIN21 and OCLC worksheets,including fixed field values.20