In August 2009, an accidental firearm discharge occurred in an occupied classroom during training led by Battelle at the Volpentest HAMMER Training and Education Center. The weapon discharge occurred during unsupervised student handling of a handgun. The Department of Energy’s evaluation of the incident disclosed a number of potential worker safety and health violations. According to DOE’s Office of Health, Safety and Security’s enforcement letter to Battelle, “Battelle performed a comprehensive causal analysis of the event and developed corrective actions that are traceable to the causal analysis findings and judgments of need. The corrective action plan appears to address the root and contributing causes of the accidental firearms discharge….In recognition of Battelle’s prompt, candid, and complete reporting of the event and deficiencies, and thorough causal analysis, DOE has determined that further enforcement investigation is not warranted at this time.”