Membership runs per calendar year and will be renewed automatically. Cancellations are effective the following January 1.
The membership fees in 2010:
• Including a printed edition of the "Bijdragen"
€ 61.50 per year for residents of the Netherlands, € 67.50 for those resident outside the Netherlands
• Including a printed edition of the "NWIG":
€ 43,- per year for residents of the Netherlands, € 45,50 for those resident outside the Netherlands
• Reduced membership without a printed journal: € 32,- .