Dear Colleagues, New training materials are now available for the OECD QSAR Toolbox. You can access all training materials (including many step by step examples and manuals) here: http://www.oecd.org/env/ehs/risk-assessment/theoecdqsartoolbox.htm?goback=%2Egde_1908098_member_262495529#Guidance_Documents_and_Training_Materials_for_Using_the_Toolbox. New training materials include the following: Step-by-step example for predicting skin sensitization accounting for skin metabolism Step-by-step example for predicting skin sensitization of mixture with known components Step-by-step example for predicting repeated dose toxicity Step-by-step example for predicting acute aquatic toxicity to fish accounting for tautomerism Step-by-step example for predicting acute aquatic toxicity to fish of mixture with known components Step-by-step example for predicting skin sensitization accounting for tautomerism Kind regards, Kristie Kristie Sullivan Secretary, ASCCT www.ascctox.org<http://www.ascctox.org>