The Cancer Centers Council is a collaborative effort between the three NCI-designated Cancer Centers in the San Diego area (UC San Diego, Salk Institute, and Sanford Burnham Prebys) to leverage their collective talents and resources. The Core facility-based initiative of the C3 focuses on enhancing inter-institutional sharing of unique core facilities at each Center. Recharge rates in these six cores (two at each Center) have been negotiated to be the host institutions’ Cancer Center member internal rate plus 16% indirect cost. This reduced cost access to unique cores, along with enhanced outreach by the cores, provides valuable new technical resources to the C3 members.