The Interagency Institute for Federal Healthcare Executive is an annual occurrence in St. Louis, Missouri, and I took part in this on several occasions during my double tenure as Surgeon General. This lecture is exactly what it purports to be -- an update of the Public Health Service for others who might not know as much as they should or would like to about the functions of the Public Health Service, in spite of the fact that they are engaged in Federal Healthcare. Agencies of the Public Health Service and their functions Association of the Military Surgeons of U.S. (AMSUS) Block Grants Budgets by agency Indian Health Services Indian Self-Determination Act (P.L. 93-638) Koop's presentation of AMSUS Vision of Public Health Service -- five years in the future