All added entries and subject headings, all aspects of the call number, and any internal peculiarities or seeming contradictions in the bibliographic description must be "justified" by the presence of some explanatory information. Usually sufficient justification is contained in the title, statement of responsibility, publication, distribution, etc. area, or in such notes as "date of situation" or "shows." However, when sufficient justification is not inherently contained in the description, the explanatory information is given in a note quoted or created for that purpose.

Special Justification Notes:

Pre-copyright registration statements can be quoted to justify an added entry or a date of situation. Example:

Notes denoting the reprint status of an item, can be quoted if there is no other indication of this status in the description. Example:

Notes can be created to explain why a reproduction was not treated as a facsimile. Examples:

The inclusion of the term photocopy(ies) as other physical details in the physical description area is considered sufficient justification that an item is not a facsimile.

When an item, which would normally be considered a nautical chart, contains a navigational disclaimer, quoting the disclaimer is considered sufficient justification for not using the subject Cutter P5. Example:

Stamped On/Labels:

The name of a corporate body, such as a Chamber of Commerce, is frequently added to an item as a rubber-stamp or on label. This type of information is usually included in the description, in an order appropriate to its content, as a general note (tag 500). Such information is not generally treated as "copy specific" or "copy being described" information (tag 590) as it is extremely likely that other copies were similarly modified as part of the normal distribution function. Examples:

Stamped-on information that is considered relevant only to the copy in hand is treated and transcribed as either a "copy being described" note (tag 590) (3) or as a "copy specific" note (tag 500 with subfield 5) that includes with the cataloging library’s identification symbol (e.g., DLC). A "copy specific" note can be used to justify an added entry, subject tracing, or date of information and is transcribed in an order appropriate to its content.

See also: