First and Second indicators:

#  Undefined


a  Projected publication date (NR)

6  Linkage (NR)

8  Field link and sequence number (R)

NOTE:  See MARC 21 Format for Bibliographic Data (263 Projected Publication Date) for code definitions not given below.


Field 263 is used by NSDP when preparing a prepublication record for a serial.  This field contains the projected date of publication of the first issue as provided by the publisher.

NSDP updates this field if the publication of the item is delayed and a revised date is obtained from the publisher.  When NSDP updates the record upon receipt of a copy of the publication, this field is deleted.  If the serial is never published the record is deleted from the CONSER database.

CONSER members that update NSDP prepublication records (see C6.1) leave field 263 in the record and do not change or delete it.

Editing instructions

1.   The date is always given as a two digit year followed by a two digit month; i.e., a YYMM pattern.  A leading zero (0) fill should be used where necessary to fill in the digits for the month.  Two hyphens (--) should be used if the month is unknown.

Item to be published in:

Input as:

Dec. 1985

263 ## 8512

May 1986

263 ## 8605

1986 (exact month unknown)

263 ## 86--

2.   When the date covers more than one month, input the number of the last month in the last two digits.

Item to be published in:

Input as:

Jan./Feb. 1986

263 ## 8602

Jan./Mar. 1986

263 ## 8603

3.   When a season is given, code as follows:

Item to be published in:

Input as:

Winter 1986

263 ## 8603

Spring 1986

263 ## 8606

Summer 1986

263 ## 8609

Fall 1986

263 ## 8612

Related fields, etc.


263 Projected Publication Date  (MARC 21 Format for Bibliographic Data)

See also:

250-28X  Edition, Imprint, Etc. Fields

Variable Data Fields

Section E.  MARC 21 Format for Serials as Applied Within CONSER

CONSER Editing Guide:  Contents