DCM Z1:  053  LC Classification Number

General:

This field is used in NARs for persons to record classification numbers for individual literary authors.  This field is also used in NARs for persons and corporate bodies to record biography numbers in span ML410-429.

Full information on the assignment of literary author numbers and their inclusion in NARs can be found in the Classification and Shelflisting Manual (CSM), instruction sheet F 632 (http://www.loc.gov/aba/publications/FreeCSM/F632.pdf).

Class PS8000 numbers should not be added in field 053.  For the use of these numbers in NARs, see DCM Z1, 065 section.  A NAR for a Canadian literary author may contain both field 053 and field 065.

PCC practice:  NACO participants may use this field only in the following situation:  to record LC classification numbers associated with personal name headings for authors who have written literary works, other than juvenile literature.  They may input classification numbers found in completed bibliographic records in the LC OPAC or they may add unverified classification numbers (see Verification of LC classification numbers for literary authors).

LC practice:  LC catalogers are strongly encouraged to add 053 fields to NARs for authors who have written literary works, other than juvenile literature.  LC music catalogers and PTCP may add 053 fields to NARs in the span ML410-429, individual biography covering individuals and performance groups.

Examples:

053  #0  $a PQ8098.1.L54

100  1#  $a Allende, Isabel

053  #0  $a PG5039.21.U6 $c Czech

053  #0  $a PQ2671.U47 $c French

100  1#  $a Kundera, Milan

053  #0  $a ML421.A17 $c Biography

100  2#  $a 10,000 Maniacs (Musical group)

Verification of LC classification numbers for literary authors:

Only "LC-verified" class numbers may have second indicator 0.  An LC class number for a literary author is considered "LC-verified" if it has been assigned in a completed LC bibliographic record before being added to the NAR.  Completed bibliographic records may be identified by this MARC coding:

906  ##  $a 7 $b cbc

053 fields with LC-verified class numbers should precede 053 fields with unverified 053 LC class numbers.

Example:

053  #0  $a PS3556.O5372

053  #4  $a PS3556.O554 $5 [MARC institution code]

100  1#  $a Fontenot, Scott Michael, $d 1968-

NACO catalogers:

Search the LC-OPAC to determine whether the number has been assigned in a completed LC bibliographic record.

If the literary author number is verified, use second indicator 0:

053  #0  $a PS3568.O243

If the number is not LC-verified, an unverified 053 may be added using second indicator 4 with the MARC institution code in subfield $5:

053  #4  $a [number] $5 [MARC institution code]

LC catalogers:

If a NAR contains an 053 field with unverified LC call number is appropriate to use for the resource being cataloged, change the 053 field second indicator to 0 and remove $5 to make the number “LC-verified.”

If a NAR contains an 053 field with an unverified LC call number and it is not appropriate to use that number for the resource being cataloged, retain the existing 053 field and add a new 053 field with the LC-verified number.

For more information on DCM Z1 Instructions, select:

DCM Z1:  Introduction

DCM Z1