This article discusses various ethical and professional issues associated with the implementation of a public health approach to the implementation of parenting interventions. The Triple P System Population Trial in the United States and the Every Family Initiative in Australia both employ the Triple P–Positive Parenting Program as a multilevel public health intervention aimed at strengthening parenting and family support community-wide. Implications of this experience are discussed for the rollout of large-scale parenting programs, with particular attention to a self-regulation framework that is useful in dealing with professional issues. Examples drawn from these initiatives illustrate the interaction between ethical and professional issues and the broader sociopolitical and cultural context within which an intervention is delivered. A sampling of issues includes multidisciplinary and competitive work environments, ensuring adequate population reach, promotion of accurate program information, anticipating potential barriers, and addressing organizational considerations.