The Environmental Protection Agency EPA or Agency is announcing the availability of and seeking public comment on a draft risk evaluation under the Toxic Substances Control Act TSCA for di-isononyl phthalate DINP 12-Benzene- dicarboxylic acid 12- diisononyl ester CASRN 28553-12-0. The purpose of risk evaluations under TSCA is to determine whether a chemical substance presents an unreasonable risk of injury to health or the environment without consideration of costs or non-risk factors including unreasonable risk to potentially exposed or susceptible subpopulations identified as relevant to the risk evaluation by EPA under the conditions of use COU. EPA has used the best available science to prepare this draft risk evaluation and to preliminarily determine that DINP poses unreasonable risk to human health.