Lederman served as President of the Board of Sponsors of the Bulletin of the Atomic Scientists, and at the time of his death was Chair Emeritus. He also served on the board of trustees for Science Service, now known as Society for Science & the Public, from 1989 to 1992, and was a member of the JASON defense advisory group. Lederman was also one of the main proponents of the "Physics First" movement. Also known as "Right-side Up Science" and "Biology Last," this movement seeks to rearrange the current high school science curriculum so that physics precedes chemistry and biology.
