On Jun. 9, 1995, the National Cancer Institute leadership initiated a major reorganization, based on recommendations of the Ad Hoc Working Group of the National Cancer Advisory Board and NCI streamlining work groups and quality improvement teams.

Two extramural divisions were createdﾗthe Division of Cancer Treatment, Diagnosis, and Centers and the Division of Cancer Biology. Two intramural divisions were also createdﾗthe Division of Basic Sciences and the Division of Clinical Sciencesﾗand one combined intramural/extramural divisionﾗthe Division of Cancer Epidemiology and Genetics.