Section C3. Modifications to LC-Authenticated Records

CONSER members may modify LC-authenticated records to maintain accuracy and to describe significant changes (e.g., ceased publication).

Key indicators of an LC-authenticated record:

050 is present and has second indicator "0", and

040 includes "DLC", and

010 is present and has an LCCN in subfield $a, and

042 is present and has some valid authentication code other than "nlc" or "isds/c".

Full, Associate, Enhance, and Affiliate participants obtain from OCLC a CONSER national level log-on authorization that permits making updates to all CONSER records.

In general, necessary changes to LC-authenticated records may be made without first notifying LC. Certain categories of change that affect distribution of holdings, however, may require notification.

The following chart specifies the additions, changes, and deletions to LC-authenticated records that may or may not be made by CONSER members and the situations in which LC must be notified. See also C8, C9, and C10.

Additions, changes, and deletions to LC-authenticated records

Data element	Add/change/delete?	Notify LC?
Encoding level	May change "1" to "blank" if issue in hand. May not change "5" to "blank".	No
010	Do not change or delete.	N/A
012	May add $zd when deleting a record from the LC/CDS distribution system.	No
042	Do not add, change, or delete (unless changing "lccopycat" or "msc" to "pcc").	No
050, 060, 082	May add using second indicator 4.	No
070, 074, 086	May add when found on the piece, or as assigned (NAL and GPO).	No
022	Add for unauthenticated or non-U.S. records; may correct in "isds/c" record if verified in the ISSN Portal cf. Contact U.S. ISSN Center for questions about "nsdp" records. C6	No
210, 222	Add for non-U.S. records; may correct in "isds/c" record if verified in the ISSN Portal cf. Contact U.S. ISSN Center for questions about "nsdp" records. C6	No
1XX	May change to authoritative form.	No
1XX	May change choice of entry in pre-AA2 record if converting to AA2.	No
240, 245, 250	May correct obvious errors but not choice of title, etc.	No
240, 245, 250	May change when converting pre-AA2 to RDA.	Yes*
246, 300, 310, 321	May add or change as necessary.	No
362	May add or change to reflect first/last issue or successive numbering scheme.	No
362	May add or change when converting to RDA.	No
490	May add 490 0. May add or change 490 1 if adding or changing 8XX.	No No
500	May add other general notes.	No
510	Do not change or delete.	N/A
515, 525, 550, 555, 580	May be added or changed as necessary.	No
588	May change the description based on/source of title note when backing up to first issue.
6XX	May add or change if from authorized list.	No
700-730; 740	May add or change if authorized form available (700-730); use 740 for unauthorized forms.	No
760-787	May add as necessary. May change incorrect link. May delete when consolidating records.	No No Yes**
800-830	May add or change if authoritative form available.	No
890, 901, 911	Do not add, change, or delete.	N/A
936	May add or change; may move the LIC citation to a 588 note when making changes to a record.	No

Related fields, etc.

C8, C9, C10