Abstract: The article reviews the extension of prescribing rights to nurses, which is described as a complex process from both a policy and a legal perspective. New Zealand, like many other jurisdictions, took time to develop and establish changes. The authors present a number of lessons that New Zealand has learned about the factors likely to contribute to success. They identify success factors as including building strong relationships with stakeholders; using robust evidence and information, including the latest developments internationally; and ensuring flexible policy and legal arrangements that can respond to change.