Among the most topical challenges in the context of global health are those associated with medical tourism, including the global provision of organs and reproductive services. Two contributions focus on transnational reproductive services. Erin Nelson argues, based on an analysis of some contrasting examples of national approaches to commercial surrogacy, that domestic law prohibitions on commercial surrogacy are a driver of international surrogacy practices and generate considerable legal complications. Nelson elaborates on some of these complications, showing us how national citizenship and parentage rules can result in stateless children through international surrogacy arrangements. Although these problems are international in scope, she maintains that domestic law reform can help both to address these legal complications and to reduce the demand for international surrogacy. In sharp contrast Jocelyn Downie and Fran- çoise Baylis argue for the transnational application and need for enforcement of existing laws. They dis- cuss how the Canadian government fails to deal adequately with the transnational trade in human eggs — notwithstanding the enactment of the federal Assisted Human Reproduction Act, which included relevant prohibitions and the establishment of a dedicated regulatory agency. The weaknesses, gaps, and uncertain- ties in the Canadian legal regime with respect to the transnational trade in human eggs, they argue, hold lessons for other jurisdictions. Downie and Baylis recommend that the Canadian government and its regulatory authorities should take immediate action to fill statutory gaps, explain to stakeholders the effects of the relevant law, and enforce that law. They should also counteract the transnational trade by using policy tools to pursue domestic self-sufficiency.