The Croatian ISMN Agency has been operating in the National and University Library since November 1995. The ISMN is administered by the Croatian ISBN Agency. All ISMN items are accessible through the online catalogue of the Croatian National and University Library.
236 publishers registered for an ISMN (as of July 2018).
ISMN is well-known and used among Croatian music publishers, and 95 % of them are registered in the database.
An average of 90 titles of sheet music is published annually, mostly scores, songbooks and music handbooks. Bar coding is used for most of these publications.