INIS is a co-operative system and participating members play a key role in the INIS System. Each participating member country and international organization is represented in the System by a Liaison Officer officially appointed by the national authority, or the executive head in the case of an international organization.
The Liaison Officers are instrumental in deciding the path along which INIS evolves and grows by :
Regular communication takes place by correspondence and through Biennial Consultative Meetings of the INIS Liaison Officers.
INIS also receives advice from the INIS Advisory Committee which reports to the Director General of the IAEA. This committee includes producers, users, and administrators of information organizations, has a broad geographical distribution and represents the interests of developing countries. The operation of INIS is reviewed at times of major change in the System or at intervals of not more than four years by this committee. Major policy and budgetary matters are referred to this committee.