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==801 ORIGINATING SOURCEOriginating source==
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.
==Occurrence==
Mandatory. Repeatable.
==Indicators==
Indicator 1: blank (not defined)
Indicator 2: Function indicator
3 Issuing agency
==Subfields==
===$a Country===
The country of the issuing agency in two-character coded form. See Appendix B for details.
Not repeatable. Not repeatable
===$b Agency===
Since there are no internationally accepted codes, the codes from USMARC Code List for
may be used. Not repeatable
===$c Date of transaction===
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
==Notes on Field Contents==
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.
==Related Fields==
*005VERSION IDENTIFIERVersion identifier
*100 GENERAL PROCESSING DATAGeneral processing data, Date Entered date entered on File file (character positions 0-7)
The date in Field 100 may be the same as the transcription date but it should be repeated in field 801.