As a non-profit organisation, the OOI provides anyone interested with a number of useful services at no cost whatsoever. More specifically, anyone requesting the OOI’s assistance will be regularly receiving an electronic information bulletin free of charge.

If more specific information is required, then a subscription is needed, at the cost of 100 (one hundred) euro per year. Subscribers to the OIE have the right to be connected in order to promote their mutual benefits and to participate at no cost in all events, conferences, exhibitions, and other OOI activities the world over. In the subscription fee are also included seminars and training programs.