This overview summarizes the results of the International Symposium on Laboratory and Field Vane Shear Strength Testing that was held in Tampa, FL, in Jan. 1987. The objectives of the symposium were to review the state of knowledge of the vane shear test (VST) and to provide the latest information on test theory, methods, and interpretation for the purpose of improved standardization of the field and laboratory vane tests. The need for a symposium at this time was based on the fact that the brief published results of the previous ASTM vane symposium appeared over two decades ago . The vane literature since then has been extensive, including a short Australian overview of field vane testing and standardization by Walker  and an extensive overview by Aas et al. .