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936  CONSER/OCLC Miscellaneous Data (NR)

Record Type


Input Standards

1st Indicator  Undefined
blank character Undefined
2nd Indicator  Undefined
blank character Undefined
Subfields (R=Repeatable  NR=Nonrepeatable) Input Standards
ǂa CONSER/OCLC miscellaneous data (R) Mandatory/Mandatory


Note that contains information that is of interest to other catalogers. Field 936 is used by CONSER members to indicate the reporting of duplicate continuing resource records to OCLC for deletion. CONSER members also record information about the expected date of publication in continuing resource prepublication records and to note conversion of LC-authenticated pre-AACR2 serial records to AACR2.


Under pre-AACR2 cataloging rules, field 936 was used to record the latest issue consulted or to note that no issue was consulted. In early MARC conversion projects, which issues had been used or even whether issues were consulted was not known. Therefore, the designations Unknown and/or INC (issue not consulted) were used. Sometimes in cooperative efforts, title pages were reproduced and sent to a central conversion unit. Resulting records contained the designation surrogate in the 936 field.

Under AACR2 rules, the cataloging is based on the earliest issue. It is assumed that the issue is in hand. Thus, the preceding uses for the field are no longer applicable.

CONSER previously defined field 936 to identify the issue used for cataloging if the issue was something other than the first issue published. Current practice is to enter this information in a note in field 588.

Information regarding the latest issue consulted during the cataloging of a serial was previously recorded in field 936 when this information could not be given elsewhere in the record. Field 936 was used when the latest issue in hand was not the last published or when publication status was unknown.

CONSER had defined subfield ǂa for information regarding the latest issue consulted during the cataloging of a serial. Data was entered in subfield ǂa under the conventions used for recording an issue designation in field 362.

To distinguish this application of field 936 from its previous pre-ACCR2 application, the designation LIC (Last Issue Consulted) was added following the volume number and the date of the issue. For example, if the data was Volume 1, Number 4, September 1971, the following was entered:

936     Vol. 1, no. 4 (Sept. 1971) LIC

Field 936 had also been used to enter OCLC control numbers for parallel records. Parallel records are those that are for the same manifestation of an item, but cataloged in a different language. The use of subfield ǂa for parallel records was discontinued in mid-2012, and existing occurrences of this type of 936 field had been deleted from WorldCat.  For more information, see section 2.6, Language of Cataloging.

1st Indicator

Undefined. The 1st indicator position is undefined and contains a blank.

blank character


2nd Indicator

Undefined. The 2nd indicator position is undefined and contains a blank.

blank character



ǂa CONSER/OCLC miscellaneous data

A note expressing information regarding a continuing resource publication. Separate multiple 936 statements with a semi-colon and input subfield ǂa before each subsequent statement.

936     AACR2=IUL ; ǂa Not related to serial with the same title also published in New Brunswick in the 1940s [NYG]

The U.S. ISSN Center enters records for serials prior to publication if the publisher requests assignment of an International Standard Serial Number (ISSN). In addition to coded data in field 263, prepublication records contain a note with the expected date of publication:

936     PREPUB: Publication expected Dec. 2013

The U.S. ISSN Center updates these records upon receipt of follow-up information from the publisher. To request an update of a prepublication record, you may forward appropriate documentation, such as a photocopy of a published issue, to OCLC Quality Control. See section 5.7, "Reporting Errors."

Conversion to AACR2

When an LC-authenticated pre-AACR2 record is converted to AACR2, the cataloging institution's symbol is added following "AACR2=" in field 936.

936     AACR2=DLC
Reporting records for deletion

CONSER members use field 936 to indicate the reporting of duplicate continuing resource records to OCLC for deletion and to notify users that a record is no longer being used.



Field 936 is not indexed.

This page last revised: July 25, 2019