The ACM Senior Members grade was established in 1993 to recognize members who have demonstrated performance that sets them apart from their peers. To be eligible for nomination, members must have at least 10 years of professional experience in the computing field and 5 years of continuous professional ACM membership. The number of individuals recognized as Senior Members is not allowed to exceed 25% of ACM Professional Members.
ACM Senior Members receive a certificate and a specially annotated ACM membership card. The names of new Senior Members are publicized on the official ACM website