The Health Effects Research Division (HEF) within TOX focuses on environmental toxicology and support to Army Research, Development, Test, and Evaluation (RDT&E) in developing sustainable, safe products. HEF performs computer predictions (in silico) of toxicity and conducts specific in vitro tests for new chemicals or those with sparse toxicity data. Toxicity information is researched and translated within Toxicity Assessments that provide recommendations on new compounds and materiel for military use. HEF performs direct support in the conduct of human and environmental health assessments, providing data and reports regarding toxicity of military-unique and military-relevant compounds and the risks they pose to warfighters, civilians, and the environment.