Please note that this membership application form is intended for members who are renewing and existing membership only; if you wish to sign up as a new member please go to the New membership application form.

Discounted Membership Fees for Renewals
Renewals received during the renewal season (Oct. 1 - Jan. 31) enjoy the discounted membership fee at a rate of:

Full Individual Membership: US$ 196 or € 140
Joint Membership: US$ 130
Member in Training: US$ 56 or € 40

Payment modalities
Please note that this online application is only for annual dues* as well as members paying by credit card (VISA, American Express and MasterCard are accepted).

All dues are payable in either US Dollars or Euro depending on the country of residence; fees of individuals in a Euro Zone Country are collected in Euros.

Members wishing to pay by cheque (not accepted in Euro) or bank transfer are requested to download and fax/e-mail the PDF application form for renewing members.

*ISN offers the possibility to apply and pay for a multi-year membership whereby the membership will run uninterrupted for as many years as the applicant wishes. Currently multi-year payment can only be accommodated through the downloadable application form.