Membership Levels DGS offers several different levels of membership, which are shown below. To join, go to How to Join/Renew. Individual 1 Year $18.00 now. Select Individual Individual 2 Years $33.00 now. Select Individual Membership – 2 Years Family 1 Year $20.00 now. Select Family (2 Members) Family 2 years $36.00 now. Select Family – 2 years (2 members) Contributing Individual 1 Year $30.00 now. Select Contributing Individual Sustaining Individual 1 Year $50.00 now. Select Sustaining Individual Institution 1 Year $18.00 now. Select Institution ← Return to Home