A workshop held at the International Potato Center (CIP) in Lima, Peru brought together researchers and Peruvian government officials in an effort to facilitate compliance with national laws governing access to biological diversity, which is the basis of much of CIP’s research. Since CIP was founded in 1971, its scientists have worked to preserve, study, and tap the potential of root and tuber crop diversity for improving food security, nutrition and smallholder incomes. But over the years, treaties and regulations created to protect biodiversity and ensure national sovereignty over it have come to regulate CIP’s use of some root and tuber crops, crop wild relatives and pest species. This process began with the signing of the UN Convention on Biological Diversity, in 1992 and led to the establishment of national regulations in Peru in 2009 that require permits for collecting, studying, or otherwise utilizing cultivated or wild species. While many countries have such regulations, Peru’s case is of special importance for CIP because the country holds the world’s greatest diversity of potato and its wild relatives, an array of other root and tuber crops, and pests and diseases that attack them; and CIP scientists conduct a significant amount of research on those species. In an effort to facilitate compliance with and improve researchers’ knowledge of regulations governing access to Peru’s biodiversity, CIP’s legal office organized a workshop on ‘Regulations for Accessing Peruvian Genetic Resources,’ held at CIP Lima on March 27. The one-day event brought together researchers from CIP and other CGIAR Centers with representatives of four Peruvian government institutions.