Michael Testa is a member of the New Jersey State Bar Association, the Cumberland County Bar Association and the American Bar Association. He is a member of the Association of Trial Lawyers of America and the Association of Criminal Defense Lawyers of New Jersey. He served, from 1984 to 1986, on the Board of Governors of the New Jersey Section of ATLA. He is also a former president of ATLA-NJ. He has served as a panelist of the American Arbitration Association, and has been certified in Civil Trial Advocacy by the National Board of Trial Advocacy. He served on the District 1 Ethics Committee of the New Jersey Supreme Court. He has been designated a Certified Civil and Criminal Trial Attorney by the New Jersey Supreme Court. He has lectured widely on trial-law issues for ATLA and state bar association conferences.