Health Hazard Assessment

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Identify, assess, and make recommendations to eliminate or control health hazards associated with operating and maintaining  Department of Defense (DoD) materiel systems.


Health Hazard Assessment (HHA) is the process used within the DoD 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 application of biomedical knowledge and principles, the HHA Program addresses the potential effects of health hazards on the Service members who use and maintain materiel systems. The HHA Program uses systems engineering principles from a health or medical perspective. The HHA process outputs risk levels associated with probability and severity to better inform risk management decision makers.

The DHA Mission- to support our Nation by improving health and building readiness-making extraordinary experiences ordinary and exceptional outcomes routine-includes reducing the risks to Service member's health posed by their own materiel. When properly integrated into the DoD's acquisition process, the HHA Program not only prevents injuries and job-related illness, but also enhances the Service member's ability to accomplish the mission. In civilian circles, the HHA Program is closely related to aspects of occupational health, safety, preventive medicine, and industrial hygiene. The distinction, however, between the HHA Program and its civilian counterparts is the Program's emphasis on the Service member-system interactions with military-unique operations and equipment.

Please visit the Health Hazard Assessment page ​in the Topics & Services section of this site to learn more.



The Army Surgeon General established the HHA Program in 1981 in response to continuing concern about the effects that operating military weapon systems have on the health of their users.  The initial program efforts focused on staffing, establishing relationships with key organizations, and building credibility.

In 1985, the Army established the Manpower and Personnel Integration Program (MANPRINT), now called Human Systems Integration (HSI).  MANPRINT emphasized the human-system integration that incorporates human considerations, including those relating to health hazards, in the design and development of materiel systems.  The HHA Program became an emphasis area, or domain, of MANPRINT.

By 1994, the HHA Program supported multiple Program Executive Offices, Service schools, Training and Doctrine Command system managers, and program/product managers.  Core program duties included providing technical advice on a case-by-case basis to combat and materiel developers, attending meetings to support developers, and preparing HHA reports for hundreds of systems in various stages of development. 

In October 2022, the HHA Program transitioned to DHA and continues to perform historical duties while consistently working to expand its capabilities to support the DHA Public Health Enterprise. The primary objectives of the current HHA Program include the following: 

  • Preserving and protecting the health of individual Service members​
  • Reducing degradation of Service member performance and enhancing system effectiveness
  • Removing health hazards from systems by design to eliminate the need for health hazard-based retrofits
  • Reducing the number of readiness deficiencies attributable to health hazards, thus reducing training or operational restrictions
  • Reducing personnel compensation claims by eliminating or reducing injury or illness caused by health hazards associated with the use and maintenance of DoD systems
  • Reducing or eliminating occupational health hazards attributable to DoD systems by estimating avoidable costs resultant of implementing HHA Program recommendations

Army Regulation 40-10 External Link establishes the HHA Program and its duties.