
The 00X variable control fields contain the record control number and other kinds of control and coded information that are used in the processing of machine-readable community information records.  These fields have no indicators or subfield codes.

In both the 007 Physical Description Fixed Field and the 008 Fixed-Length Data Elements Field, the specific data elements are positionally defined.  A more detailed explanation of positionally defined data elements is found in the description of fields 007 and 008.

For information on a specific variable control field, select a topic:

001  Control Number  (NR)

003  Control Number Identifier  (NR)

005  Date and Time of Latest Transaction  (NR)

007  Physical Description Fixed Field  (NR)

008  Fixed-Length Data Element  (NR)

Content designator history:

004  Coded Dates Fixed Field  [obsolete, 1998]:  Replaced by field 046 (Special Coded Dates).

See also:

MARC 21 Format for Community Information:  Contents
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