LC Guidelines:  008/39  Cataloging source

NACO:

National bibliographic agencies use blank ( # ); other NACO participants use code c.

Do not use codes:  d, u, fill character ( | )

SACO:

Always use the fill character.  Prior to December 2020, code c was recorded in this position.

LC:

NAMES/SERIES:

Always use blank ( # ).

SUBJECTS:

Always use the fill character.  Prior to December 2020, blank was recorded in this position.

For more information on LC Guidelines, select:

Introduction  (LC Guidelines)

LC Guidelines