Abstract: An exemplary method for the determination and classification of chemical hazards comprises the steps of: specifying physical data corresponding to a chemical material; optionally validating the physical data; and processing the physical data and/or validation data to produce a classification result. Various features and parameters of the present invention may be suitably adapted to optimize or otherwise improve the classification of chemical hazards. The present invention provides for improved response times to chemical spills as well as better management and control of information related to the characterization of hazards and the partitioning of chemical substances into various classification categories.