This field contains an indication of the origin of the record, including one of the following: the agency

has modified the original record/data, and the agency issuing the present record.

Mandatory. Repeatable.

Indicator 1: blank (not defined)

Indicator 2: Function indicator

3 Issuing agency

The country of the issuing agency in two-character coded form. See Appendix B for details.

Not repeatable. Not repeatable

Since there are no internationally accepted codes, the codes from USMARC Code List for

may be used. Not repeatable

This subfield is used when possible to indicate when a modification was made or a record

without separators between year, month, and day, i.e. YYYYMMDD. Not repeatable

In many cases the same agency will have carried out some or all indicated functions; however, the

formats; where there are no changes only the earliest occurrence of the field should be included.

The date in Field 100 may be the same as the transcription date but it should be repeated in field 801.