Field 042 contains one or more codes that represent different levels of authentication of CONSER records. Codes "lc", "nlc", "nsdp" and "isds/c" represent specific agencies or Centers of Responsibility. Codes "lcd", "msc", and "lccopycat" reflect the status of name headings in the record. Codes "pcc", "msc", and "lccopycat" reflect the status of name headings in the record. Codes "lc" and "lcd" were superseded by the code "pcc" May 1, 2009 but remain valid in existing records.
Beginning May 1, 2009 all CONSER institutions use the authentication code "pcc" in place of codes "lcd" and "lc" in records newly authenticated and distributed as part of the CONSER Program. The code is used in records for both serials and integrating resources.
Code "pcc" indicates a Program record where the description meets PCC standards and authority records exist for all headings. In a CONSER standard record, code "pcc" signifies that the CONSER descriptive elements have been verified by an authenticating CONSER participant. Name and series headings have been checked against the LC/NAF and authority records have been created if they did not already exist. Subject headings are checked for authorized forms or combinations supported by the relevant authority.