​Health Hazard Assessment (HHA) is the process used within the Army to identify and assess health hazards associated with materiel system life cycle management and provide recommendations to capability developers, materiel developers, and training developers to eliminate or control the health hazards inherent in weapon platforms, munitions, equipment, clothing, training devices, and other materiel systems. Through the application of biomedical knowledge and principles, the HHA Program addresses the potential effects of health hazards on Soldiers who use and maintain the materiel systems. HHA uses systems engineering principles from a health or medical perspective.