The symposium on Chemical Dispersants for the Control of Oil Spills was held at Williamsburg, Va., 4-5 Oct. 1977. The symposium was sponsored by Committee F20 on Spill Control Systems, American Society for Testing and Materials. L. T. McCarthy, Jr., presided as symposium chairman. The editors of this publication are L. T. McCarthy, Jr., G. P. Lindblom, Exxon Chemical Company, and H. F. Walter, Department of Energy.