TEV supports the Army Preventive Medicine Program, acquisition programs, and warfighter readiness through consultations, data evaluations, modeling, and laboratory animal testing. Scientists within TEV conduct toxicity studies to determine occupational exposure levels (OELs) and military-unique health effects criteria. TEV scientists produce Toxicity Clearances (TCs) that are decision documents required for all substances and systems entering the Army supply chain. TEV services provide critical information needed to protect the warfighter, the worker, and the environment; and to sustain operations required for military readiness.