NDMS was originally under the U.S. Public Health Service ( USPHS ) within The Department of Health and Human Services ( HHS ) . In 2003 , as a direct result of the September 11 attacks in 2001 the newly formed Department of Homeland Security ( DHS ) , requested , and was granted convening authority over NDMS which was then placed under the direction of the Federal Emergency Management Agency ( FEMA )
September 11 attacks
September 11 attacks
National Disaster Medical System