This paper describes the activities of the SAE Automotive Corrosion and Prevention (ACAP) Committee, Division 3 (Environmental Mechanisms) in the evaluation of cosmetic corrosion test methods. Various methods for testing painted sheet steel are described and data from some of the tests are presented. Test methods being evaluated include automotive proving grounds, accelerated outdoor exposure, laboratory cyclic, and laboratory environmental. The test materials are various pre-coated and bare automotive sheet steels, pre-treated and painted with an automotive coating system. As this is an interim report, only partial data are presented.