First and Second indicators:

#  Undefined


a  Non-ASCII G0 default character set designation (NR)

b  Non-ANSEL G1 default character set designation (NR)

c  Alternate graphic character set identification (R)

NOTE:  See MARC 21 Format for Bibliographic Data (066 Character Sets Present) for code definitions not given below.


Field 066 contains information specifying the character sets present in the record whenever a set other than ASCII, ANSEL, or the MARC 21 Greek, MARC 21 subscript, or MARC 21 superscript character set is present.  The field alerts users that special processing may be required.  It is often used in conjunction with field 880 (Alternate Graphic Representation) in MARC 21 records.

Character sets are identified in field 066 by all but the first character of the escape sequences that designate the sets (the first character is the escape character, hex 1B).  The characters that make up the escape sequences, as well as details about escape sequencing, are described in MARC 21 Specifications for Record Structure, Character Sets, and Exchange Media.

In CONSER records, field 066 appears in records for Chinese, Japanese, or Korean serials that contain vernacular data.  Field 066 is system generated by OCLC and is not input by the cataloger.  The field displays only on non-CJK workstations to indicate that alternate graphic representations are present in the record though not displayed.

The only alternate graphic character set currently used by CONSER is the Chinese, Japanese, Korean (EACC) character set, which is represented by the ASCII graphics $1.


066 ## $c $1

For further information on this field, see MARC 21 Format for Bibliographic Data.

Related fields, etc.

880, Appendix O

066 Character Sets Present  (MARC 21 Format for Bibliographic Data)

See also:

01X-09X  Numbers and Codes

Variable Data Fields

Section E.  MARC 21 Format for Serials as Applied Within CONSER

CONSER Editing Guide:  Contents