Due to the process of globalization, rapid medical and technological advances, and the persistence of the global scarcity in organs, the organ trade has grown to become an international issue of increasingconcern. Over the past several decades, more than 100 countries have passed legislation banning the commercial trade in organs. What explains this rapid, global diffusion of commercial transplantation laws, and what are the key factors influencing legislation? This studyexplores these questions through an analysis based on sociology's world culture, world polity theory. Utilizing survival analysisn models, the study covers 127 countries from 1965-2012. Results offer support for the world culture/world polity theoretical framework, while economic development also impacts legislation. The global trendtoward legislation is influenced by global, cultural, and economic factors.