Dr. Sidney Green graduated with a B.A. in Biology from Dillard University in New Orleans in 1961.He received his Ph.D. in biochemical pharmacology from Howard in 1972. He is an Adjunct Associate Professor of Pharmacology at the Howard University College of Medicine in Washington D.C. He has held previous positions at Covance Laboratories, Inc, Vienna VA as Director of Toxicology, the Food and Drug Administration as Director Division of Toxicological Research, Associate Director for Laboratory Investigations, Chief Whole Animal Toxicology Branch, and Chief Genetic Toxicology Branch. His career at FDA spanned 29 years, the last 10 of which he served in the Senior Executive Service (SES). He has also served as Chief of the Toxic Effects Branch at the Environmental Protection Agency (EPA).

He was the recipient of the Distinguished Alumni Award in 2002 from Dillard and Distinguished Ph.D Alumni Award from Howard University in 1997. He has over seventy scientific publications primarily in genetic toxicology, short-term test methodology and policy issues associated with alternatives to toxicological animal tests. He also has expertise in systemic toxicology related to food additives and contaminants. He has received the FDA Commissioner's Special Citation, two Group Recognition Awards and twice received the FDA Award of Merit once as a group award and singularly. It is the highest honor the agency can bestow on employees. He is also the recipient of the Washington DC Banneker District of the Boy Scouts of America, Award of Merit.

He is a past member of the EPA Science Advisory Board, 2002-2008 and currently the EPA's Human Studies Review Board. He has served on numerous National Academy of Sciences review committees and is a past member of the Committee on Toxicology. He is a past President of the American College of Toxicology, Academy of Toxicological Sciences, National Capital Area chapter of the Society of Toxicology, and the Association of Government Toxicologists. He is a member of the Society of Toxicology, Environmental Mutagen Society, Society for In Vitro Biology, Organization of Black Scientists and the Association of Government Toxicologists. He is a past Chairman of the Membership Committee and past member of the Council of the Society of Toxicology. He is a life member of the Omega Psi Phi Fraternity

He has been married for 52 years to Naomi Chess of Mobile Alabama whom he met at Dillard. They reside in Silver Spring MD. and have three children, Sheryl, Cordell and Eran and three grandchildren. He has been a member of the New Bethel Baptist Church of Washington DC for 50 years and has served in numerous capacities, e.g Chairman Trustee Board, Church School teacher and Director Church School and as Troop Committee Chairman.