Tag of the Month

Category: Tag of the Month Bibliographic Archives
Title: 022 - International Standard Serial Number (ISSN) (R)

The 022 tag of the MARC bibliographic format contains 
the International Standard Serial Number (ISSN), and 
any incorrect or canceled ISSN(s) related to the 

AACR2 covers ISSNs in rule 12.8B and in the X.8 
subsection in each chapter (2.8, 3.8, etc.), as 
serials can occur in all formats, except manuscripts.
RDA provides instructions on recording identifiers 
(ISSNs) in 2.15.

The ISSN Network assigns the eight digit ISSN. The 
last digit of the ISSN is a check digit, 0-9 or X 
(Roman Numeral for 10). The check digit allows 
computer systems to validate ISSNs.

A valid ISSN is entered in subfield a of the 022 tag. 
An incorrect ISSN appearing on the serial is entered 
in subfield y. A canceled ISSN is entered in subfield 


First  Level of international interest
 blank No level specified 
       (Used by all cataloging agencies except the
       National Serials Data Program (NSDP) and 
     0 Continuing resource of international interest
       (Full record registered with ISSN Network) 

     1 Continuing resource is not of international interest
       (Abbreviated record registered with ISSN 

Second  Undefined

 blank Undefined


     a  International Standard Serial Number (NR) 

     y  Incorrect ISSN (R) 

     z  Canceled ISSN (R) 


There is no mark of punctuation at the end of this


     022    _a1077-7199

     022    _a0029-0564

     022    _a0145-8043