Background The IPC Athletics Classification Project a began in 2003 and aims to develop a taxonomically valid, evidence-based system of classification for athletes previously classified under the following systemsb: • Cerebral Palsy - Sport and Recreation Association (CP-ISRA); • International Stoke Mandeville Wheelchair Sports Federation (ISMWSF); • International Sports Organization for the Disabled (ISOD) system for Amputees; and • ISOD (Les Autres). The Project has two stages: Stage 1 - Building the Foundations (recently completed); and Stage 2 – Developing evidence-based class profiles, (recently commenced). In summary, the aims of Stage 1 were to develop a framework for classification that was taxonomically valid – taxonomy being the science of classification – and describe minimum disability criteria that were consistent with the framework. Stage 1 has been completed and the outcomes have been included in this report. However Stage 1 did not aim to change the actual class profiles – accredited classifiers who scan Sections 4.2 and 5.2 will notice relatively few substantive changes in this area. While aim of these class profiles is generally consistent with the new framework, they were developed based on expert opinion, rather than empirical evidence. Currently reliance on expert opinion is essential because relevant empirical research is not available. However, because classification is such an important aspect of Paralympic Athletics, the IPC Athletics Sports Technical Committee (STC) is committed to replacing these opinion-based class profiles with ones that are based on scientific evidence. The research needed to develop these evidence-based class profiles will be undertaken in Stage 2, which has just commenced. A more detailed description of both stages of the project is presented in Appendix J.