the HSSAs were renamed Regional Medical Commands and later in 2016, to Regional Health Commands. Transition circa 2019 "The Defense Health Agency is assuming administration and management responsibilities from the Army, Navy and Air Force for all military hospitals and clinics [as of] 1 Oct. 2019. Congress initiated this change in administration and management because they saw a need for a more flexible, adaptable, effective and integrated system to manage [U.S. military medical] facilities. DHA will initially oversee these facilities through a direct support relationship with the Military Medical Department intermediate management organizations. The DHA will relieve the Military Departments of this support during a transition period in which responsibility for specific health care and administrative functions are fully transferred from the Military Departments to the DHA. DHA is establishing a market-based structure to manage the hospitals and clinics. These market organizations will provide shared administrative services to the hospitals and clinics in their region. They will be responsible for generating medical readiness of active duty members and families in their regions, as well as ensuring the readiness of their medical personnel." Other responsibilities formerly assigned to MEDCOM have also been transferred, as of 1 October 2019. Logistics and materiel research and supply have been assigned to United States Army Materiel Command, and medical training is now the responsibility of Training and Doctrine Command (TRADOC). The Army Medical Department Center & School (AMEDDC&S) has been renamed the Army Medical Center of Excellence. The Walter Reed National Military Medical Center, Bethesda, MD, was transferred to the direct control of the Defense Health Agency. Previous subordinate commands of MEDCOM also included the United States Army Dental Command, Fort Sam Houston, TX. The Army Medical Department ("the AMEDD") remains, as an overall administrative body, including the Medical Corps, Nurse Corps, Dental Corps, Veterinary Corps, Medical Service Corps, and Medical Specialist Corps. Structure Office of the Surgeon General Medical Command Headquarters Ambassador Program AMEDD DoD/VA Program Office U.S. Army Public Health Center, previously known as the U.S. Army Center for Health Promotion & Preventive Medicine (USACHPPM) prior to 1 October 2009; it and the U.S. Army Veterinary Command (VETCOM) were merged in 2011 to create USAPHC. Rehabilitation and Reintegration Division Reserve Affairs Warrior Care & Transition MEDCOM is also divided into Regional Health Commands (RHCs) that oversee day-to-day operations and exercise command and control over the Medical Treatment Facilities in their regions. There are