Institutions, associations and legal entities, interested in the Society’s aims, can join SIS upon Executive Board’s approval. Upon payment of an annual fee, the institution takes part in SIS scientific activity through its own representative, receives SIS publications at the same terms established for Ordinary Members and can have its own delegate with voting right in the Assembly.

Adherent Institutions’ admission is up to the Executive Board which shall see to it at least once a year.

How to propose a new adherent institution
It must be produced a letter by the institution’s legal representative stating the intention to join SIS.

Annual membership fee
Annual membership fee is established by the Assembly upon Executive Board’s proposal (for the present year membership fee is euros 380,00).
Membership can be renewed yearly or for three years (2024-2026 fee is euros 1.100,00).