Technical Services Department Procedures Manual


Section 3C.2 :
OCLC MARC Authority Record Structure and Basic Principles
The example below represents a general authority record. Not all the fields are listed here, just common ones. Note: x in a field is simply a place holder.Fixed field elements: (see below for common fixed field codes)

Rec stat: x          Entered: xxxxxxxx
Type: z                Upd status: x                Enc lvl: x            Source:
Roman:               Ref status: x                 Mod rec:            Name use: x
Govt agn:            Auth status: x               Subj: x                Subj use: x
Series: x             Auth/ref: x                     Geo subd: x       Ser use: x
Ser num: x          Name: x                        Subdiv tp: x        Rules: x

Variable field elements:

010     Library of Congress Control Number (i.e. n 12345678)

040    Cataloging source (i.e. DLC $c DLC)

005    Date and time of last transaction (i.e.19910716055451.8)

02x    ISBN / ISSN number

043    Geographic area code

050    Call number (of a series, a range for subject headings, author number, etc.)

1xx    Main heading (see below for Main heading information)

100   Personal name 155 Genre term

110 Corporate heading                                180 General subject division
111 Conference name                                  181 Geographic subject division
130 Uniform title                                             182 Chronological subject division
150 Topical subject term                               185 Form subject division
151 Georgraphic subject term

2xx and 2xx are complex see and see also refs

4xx    See from tracings (See refs); do not use these headings, use Main heading — same pattern as 1xx

5xx    See also from tracings (See also refs); valid headings — same pattern as 1xx

64x    Series information. Numbering examples & practices, tracing practices, etc.

640 Series dates of pub
641 Series no. peculiarities
642 Series numbering example
643 Series place and publisher
644 Series analysis practice
f = analyzed in full (a record is made for each part)
p = analyzed in part (a record is made for some parts)
n = not anayzed (usually added to a serial holdings)
645 Series tracing practice (added entry for series or not)
t = traced
n = not traced
646 Series classification practice
c = classed as a collection / set
m = classed with main series
s = classed separately

6xx Can also show source data (name of the item this record was based on, complex notes, etc.

7xx Heading linking entries

8xx Alternate information

Use of the information in the fixed field used in conjunction with the information in the variable fields can sometimes tell you a lot about the heading. For instance a Series: code of c will tell you that the heading is a “Series-like phrase.” Often these will have “Use as quoted note” in a 6xx field.


Some fixed field codes to be aware of:

Type:                type of record:   z = authority
Enc lvl:             encoding level:  n = complete authority o = incomplete
Auth status:      level of establishment code:  a = fully estabished (see manual for others)
Subj:                 subject heading authority code:   a = LC b = LC children (see manual)
Series:             type of series code (see manual)
Geo subd:        direct/Indirect geo. sub. code:    [blank] = not sub. d = direct i = indirect n = not applicable
Rules:               cataloging rules used:   a = earlier b = AACR1 c = AACR2 d = AACR2 compatible
z = other n = N/A

Main heading information:

The headings that you see listed in the 1xx fields are the main headings for the authority record.  On a bibliographic record they can be used in different ways. Some examples of how a main entry on an authority record can be used on a bibliographic record:

Authority Record Bibliographic record

100 Personal name                                   100 Personal name main entry
600 Personal name subject entry
700 Personal name added entry

130 Uniform title                                         130 Uniform title main entry
440 Series title entry
630 Uniform title subject entry
730 Uniform title added entry
830 Series title traced differently

150 Topical subject                                    650 Topical subject term

151 Geographic subject                            651 Geographic subject term

18x Subject divisions                                  6xx Subject heading subdivisions

Please see the OCLC Authority User Guide for more information.


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