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VARIABLE FIELD EDITING POLICY --DRAFT-- 6/27/02/rev3

Summary of variable fields that are OK to delete from imported member/vendor records

DELETE: 011, 012, 029, 039, 045 (books only), 049, 069, 072,092, 096, 098, 653, 654, 656, 657, 658

DELETE: 600, 610, 611, 630, 650, 651 indicator 3-7, 653, 654, 656, 657, 658

USE JUDGEMENT: 035 (SEE 035 FIELD SUMMARY DOCUMENT)

USE JUDGEMENT: 090: retag if LC class; otherwise delete. 099 retain if Yale class; otherwise delete

USE JUDGEMENT: delete 69x if not Yale; retain if Yale record

DELETE ALL 9xx EXCEPT: 927, 928, 948, 987

DELETE/RETAIN TAG TABLE   BFS=OCLC Bibliographic Formats & Standards
TAG DESCRIPTION DELETE RETAIN COMMENTS
010 LCCN   ü  
011 LC linking control no. X   OBSOLETE
012 Terminal display X   BFS: users may delete or discard
013 Patent control info   ü Probably will never encounter
015 National Bib no.   ü BFS: Use if you are transcribing LC copy with national bibliography numbers for British Library cataloging or if you are transcribing British Library copy or National Library of Canada copy.
016 National Bib Agency no.   ü Used for the NLC control no.
017 Copyright reg. no.   ü  
018 Copyright article-fee code   ü  
019 OCLC control no. cross ref   ü Represents OCLC no. of deleted record
020 ISBN   ü  
022 ISSN   ü  
024 Other standard no.   ü  
025 Overseas acq. no.   ü  
027 Standard tech. rpt. no.   ü  
028 Publisher no.   ü Important retrieval field for music and video
029 Other System Control no. X   Used for internal OCLC tracking
030 CODEN designation   ü  
032 Postal registration no.   ü Used for serials
033 Date/time & place of event   ü Used primarily with sound recordings
034 Coded cartographic data   ü Used in map cat. In conj. w/255
035 System control no.   SEE 035 Field Summary document
036 Data file id number   ü  
037 Source of acquisitions   ü  
039 Core record designator X   OBSOLETE
040 Cataloging source   ü  
041 Language code   ü  
043 Geographic area code   ü  
044 Country of publ. code   ü  
045 Time period of contents X (see note)   Delete for books; retain for scores/recordings.
    Assigned by vendors; no way to check accuracy
046 Special coded dates   ü Delete if on vendor record
047 Form of musical comp.   ü Important retrieval field for music
048 No. of musical instruments   ü Important retrieval field for music
049 OCLC loc code X    
050 LC call no.   ü  
051 LC copy, issue statement   ü  
052 Geographic classification   ü Primarily on map records?
055 NLC call number   ü  
060 NLM call number   ü  
061 NLM copy statement   ü  
066 Character sets present   ü Nonroman records
069 Other System Control no. X   OBSOLETE
070 NAL call number   ü  
071 NAL copy statement   ü  
072 Subject category code X   These appear to be assigned by vendors and are generally not in synch with the actual classification
074 GPO item no.   ü Government documents
080 Universal decimal call no.   ü Delete if assigned by vendor
082 Dewey decimal call no.   ü  
084 Other call no.   ü Used for nonlocal classification schemes that do not have a specific tag
086 Government doc class no.   ü  
088 Report number   ü  
090 Locally assigned LC-type   RETAG If the call no. is LC classification, re-tag to 050 _4; otherwise delete
092 Locally assigned Dewey no. X   Since we are not able to verify, better to delete
096 Locally assigned NLM X   Since we are not able to verify, better to delete
098 Other classification schemes X   Since we are not able to verify, better to delete
099 Local free text call no. SEE NOTE   Delete only if not a local Yale number
     
600 2nd indicator 0, 1, or 2 LC, LC childrens, MeSH   ü  
600 2nd indicator 3-7 nonLC/MeSH X    
610 2nd indicator 0, 1, or 2 LC, LC childrens, MeSH   ü  
610 2nd indicator 3-7 nonLC/MeSH X    
611 2nd indicator 0, 1, or 2 LC, LC childrens, MeSH   ü  
611 2nd indicator 3-7 nonLC/MeSH X    
630 2nd indicator 0, 1, or 2 LC, LC childrens, MeSH   ü  
630 2nd indicator 3-7 nonLC/MeSH X    
650 2nd indicator 0, 1, or 2 LC, LC childrens, MeSH   ü  
650 2nd indicator 3-7 nonLC/MeSH X    
651 2nd indicator 0, 1, or 2 LC, LC childrens, MeSH   ü  
651 2nd indicator 3-7 nonLC/MeSH X    
653 Uncontrolled index term X    
654 Subject added entry facetted X    
655 Index term genre/form   ü Video cataloging is already starting to use this although not LC policy yet
656 Index term occupation X    
657 Index term function X    
658 Index term curriculum objective X    
69X Local subject SEE NOTE   Retain on records cataloged by Yale; delete from member records
     
880 Alternate graphic representation   ü Used for nonroman fields
     
927 Yale bib processing data   ü  
928 Yale authority processing data   ü  
948 Local Yale processing info   ü  
987 Local romanization data   ü  
DELETE ALL OTHER 9xx FIELDS    

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© 2002 Yale University Library
Last revision: 25 February 2004
Contact: Dajin Sun
URL: http://www.library.yale.edu/catman/deletiontable.htm