This document is provided by the Agency for Toxic Substances and Disease Registry (ATSDR) ONLY as an historical reference for the public health community. It is no longer being maintained and the data it contains may no longer be current and/or accurate.
Learn more about the Hazardous Substances Emergency Events Surveillance (HSEES) system, a web-based application that provides an easy way to enter data for qualifying emergency events from the HSEES Data Collection Form into a centralized computer database. The application follows the outline of the Data Collection Form, and the use of tab pages allows simple navigation through the data.
User Guide [PDF, 1095KB]