Dental personnel are detailed to four divisions of the U. S. Public Health Service: Division of Marine Hospitals and Relief, Division of Domestic Quarantine, Division of Mental Hygiene and the National Institute of Health. The Division of Domestic Quarantine (States Relation) has added a dental consultation service to provide advice on the organization and administration of dental health services in state and local health departments. The National Institute of Health has conducted research into various dental problems connected with public health. The first appointment of a dentist on a state board of health was in Virginia in 1916. By July 1, 1938, there were dental divisions or subdivisions in thirty-five state departments of health. The organization and functions of the dental sections in each of these state departments is described.