Field definition and scope:

Field 066 is used in records encoded with characters from sets other than ISO 10646 (or Unicode) to specify the character sets for data content that are present in the record.  The field alerts users that special processing may be required.

The codes for identifying character sets are 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 other details about character encoding of MARC records, are described in MARC 21 Specifications for Record Structure, Character Sets, and Exchange Media.

Field 066 is NOT repeatable.

Guidelines for applying content designators:

For indicator and subfield code definitions and examples, and designator repeatability, see table below:

Position

Description

Repeatability

Field 066

Character Sets Present

NR

Indicator:

 

 

First

Undefined; contains a blank

 

Second

Undefined; contains a blank

 

 

 

 

Subfield code:

 

 

$a

Primary G0 character set

NR

$b

Primary G1 character set

NR

$c

Alternate G0 or G1 character set

R

Related MARC fields or documents:

880  Alternate Graphic Representation

MARC 21 Specifications for Record Structure, Character Sets, and Exchange Media

See also:

0XX  Numbers and Codes

Variable Data Fields