TRB Electronic Circular E-C086: Evaluation of Chemical Stabilizers: State-of-the-Practice Report is designed to provide information on practices that agencies have found to be successful and tp provide a reasonable degree of uniformity and standardization in the evaluation of chemical stabilizers used in soil stabilization. The circular is intended to provide the potential users of any chemical stabilizer with important points to consider in evaluating whether or not the stabilizer is suitable for the intended use. E-C086 is an update of the Transportation Research Circular 252: Evaluation of Chemical Stabilizers published in 1983 by the TRB.