This report is a summary of the national workshop in Washington, DC in March 2002.  The report summarizes the findings of the IOM study Calling the Shots, reviews the status of implementation of the IOM report recommendations at the federal and state levels, and highlights continuing challenges in immunization finance for the nation as a whole and for individual state and local health departments. Participants in the workshop included members of the original study committee and the workshop program committee; state and local health directors; representatives of national health care and public health organizations, health plan associations and business groups; health care providers; congressional staff; and staff from the CDC National Immunization Program and other federal agencies concerned with immunization.