Guidelines for Usage: 008/29 Reference evaluation

NACO LSP Usage:

Do not use code b (Tracings are not necessarily consistent with the heading) on any new record. When changing an existing record having code b, the references (if any) should be evaluated and the code changed to a (Tracings are consistent with the heading) or n (Not applicable).

Do not use the fill character ( | ) in this character position.

LC Usage:

Code b (Tracings are not necessarily consistent with the heading) may occur in LC records created before the adoption of AACR 2 in Jan. 1981 and will continue to exist until any records containing reference tracings have been evaluated and the authority record updated. All new authority records with references must contain code a.

LC has not implemented the fill character ( | ) for this character position.

For more information on LC Guidelines, select:

Guidelines for Usage: NACO/LSP and LC