066  Character Sets Present (NR)

Contains a code identifying the alternative character set used in the record. The subfield is repeated for each additional character set present.

Characters falling within the MARC-8 character set are indicated by the following codes:

OCLC supports Unicode UTF-8 characters for scripts falling outside the MARC-8 character set. The Unicode Character Code Charts list all available scripts. Four-character script identification codes based on the ISO 15924 Code Lists are used to designate the presence of these Unicode scripts.

Records containing non-MARC-8 characters are expected to be output in the UTF-8 data format. Field 066 does not appear in records exported in UTF-8, and the script code does not appear in field 880 subfield ǂ6.

If multiple non-Latin scripts exist in a single field or a single record and the MARC-8 data format is used, all non-MARC-8 characters are expressed by numeric character references (NCR) structured as ampersand, pound sign, lowercase letter x, four-position Unicode character code, and a trailing semicolon. For example, च would be used to represent the Devanagari script character च which will display as the appropriate character when fonts are available to display that script. The non-MARC-8 script code does not appear in subfield ǂ6 of the 880 linkage field.