The International ISMN Agency promotes, coordinates and supervises the world-wide use of the ISMN system. It acts as the Registration Authority for this ISO Standard (ISO 10957).

The International ISMN Agency publishes the ranges of publisher IDs assigned to each country for the use of ISMN agencies and other professional organizations.

The Agency approves the definition and structure of the national agencies and allocates ranges of publisher IDs to them.

In addition, the International ISMN Agency publishes a Users’ Manual which sets out the rules and responsibilities of local agencies.

It advises new member states in establishing an ISMN office and sets the rules according to which publisher IDs are assigned to music publishers.

The International ISMN Agency publishes the ranges of publisher IDs assigned to each country on a CD for the use of ISMN agencies and other professional organizations.

In addition, the International ISMN Agency publishes a Users’ Manual which sets out the rules and responsibilities of local agencies.