Records in either RDA or AACR2 may be exported into the OPAL catalog. Hybrid records are also permissible. Original cataloging by OPAL members may be accepted in either format, as long as it conforms to national cataloging standards and the national authority file.
Records in either RDA, AACR2, or hybrid format may be exported into the OPAL catalog. However, bibliographic records created using Resource Description and Access (RDA) rules, whether cataloging at the copy or original level is preferred. If no matching bibliographic record exists in WorldCat, derive or create a new record in accordance with current cataloging practices, e.g., Resource Description & Access (RDA). Record examples can be found on the RDA Resources Page.