Attend an ACM meeting, fill out and turn in the ACM@UCR membership form along with the $20 membership fee to the Treasurer.
Yearly dues for both memberships are $20. For current student memberships, membership dues go toward ACM chapter activities. The majority of the funds from alumni memberships go toward ACMServer maintenance.
You can renew your ACM@UCR membership (both student and alumni) by sending a check or money order to:
Association For Computing Machinery
201 Commons
Riverside, CA 92521
If you are sending Alumni Membership dues, please write a note "ACM ALUMNI" on the check/money order so the funds can be appropriated properly.