The medical associations and specialty societies writing this letter have serious concerns about the implementation of the Physician Payments Sunshine Act. Specifically: 1) CMS has proposed changing the reporting exclusion for continuing medical education activities in a way that could significantly and negatively impact CME. The organizations recommend a slight modification to the proposal. 2) CMS's interpretation of the educational materials exclusion is too narrow and should be reconsidered to include medical textbooks and journal articles that directly benefit patients. 3) The condensed timeframe for physician registration does not allow adequate time for registration or review/dispute of reports before publication. The organizations strongly urge postponing publication for six months. 4) The registration process is overly complex