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DATE: May 23, 2024
REVISED:
NAME: Adding Subfields $0 and $1 to Fields 506 and 540 in the MARC 21 Bibliographic Format
SOURCE: PCC Standing Committee on Standards, PCC Standing Committee on Applications
SUMMARY: This proposal adds subfields $0 (Authority record control number or standard number) and $1 (Real World Object URI) to fields 506 (Restrictions on Access Note) and 540 (Terms Governing Use and Reproduction Note) in the MARC 21 Bibliographic Format.
KEYWORDS: Field 506 (BD); Restrictions on Access Note (BD); Field 540 (BD); Terms Governing Use and Reproduction Note (BD); Subfield $0, in field 506 (BD); Subfield $0, in field 540 (BD); Subfield $1, in field 506 (BD); Subfield $1, in field 540 (BD); Subfield $u, in field 506 (BD); Subfield $u, in field 540 (BD); Authority record control number or standard number (BD); Real World Object URI (BD); Uniform Resource Identifier (BD)
RELATED: 2024-DP04; 2020-FT02; 2020-FT03; 2021-04; 2023-FT01; 2017-06; 2017-08; 2002-10
STATUS/COMMENTS:
05/23/24 – Made available to the MARC community for discussion.
06/25/24 – Results of MARC Advisory Committee discussion: Approved, with the amendment to change the name of field 540 subfield $f (Use and reproduction rights) to "Standardized terminology for use and reproduction rights" in order to better align with the name of field 506 subfield $f (Standardized terminology for access restriction).
10/31/24 – Results of MARC Steering Group review - Agreed with the MAC decision.
Over the course of multiple proposals, subfields $0 (Authority record control number or standard number) and $1 (Real World Object URI) have been added to numerous fields in the MARC Bibliographic and Authority Formats to enhance linked data compatibility in MARC. In 2022, the Program for Cooperative Cataloging (PCC) Standing Committee on Applications (SCA) charged a task group to review and identify additional descriptive practices and MARC fields that could benefit from linked data vocabularies, and to propose strategies to implement those improvements. The group reviewed descriptive (non-access) MARC fields in which subfields $0 and $1 were not already defined, and ultimately recommended the definition of these subfields in several fields in the Bibliographic Format. The PCC Policy Committee (PoCo) approved a majority of the task group's recommendations in 2023 and thereafter charged the PCC Standing Committee on Standards (SCS) to implement the approved recommendations. This proposal represents one element of this work, and pursues the definition of subfields $0 and $1 in fields 506 and 540, with a goal of enabling linked data enhancements in those fields. Due to a number of similarities between fields 506 and 540, this proposal combines the two recommendations. The other approved recommendations of the SCA task group requiring MARC revisions are being pursued in separate papers.
This proposal seeks to define subfields $0 and $1 in field 506 (Restrictions on Access Note). The identifier or URI contained in subfield $0 or $1 corresponds to a standard term contained in subfield $f of field 506, taken from the vocabulary specified in subfield $2. The identifier does not relate to values in subfield $b (Jurisdiction) or to data in another subfield besides subfield $f. Subfield $2 is coded from the Access Restriction Term Source Codes