Subfield code $5 - Institution to which field applies: (R )

Subfield $5 contains the MARC code for the institution or organization that has added a tracing, reference, or linking entry field to an authority file record. It is used for institution-specific information that may or may not apply to the universal use of the authority record

The sources for the MARC code are the MARC Code List for Organizations (maintained by the Library of Congress) and Symbols and Interlibrary Loan Policies in Canada (maintained by the National Library of Canada).

Subfield $5 is always the last subfield in the field.

Example:

400 1#$aKing, Kennedy$5NNU

485 ##$vArt songs$5NjP

585 ##$vAcronyms$5DLC

700 05$wa$aFrancis, of Assisi,$cSaint,$d1182-1226$5CaOONL