This short policy brief from USAID highlights some findings from the USAID-funded Mapping Approaches for Securing Tenure (MAST) programme’s activities in Mozambique, Tanzania and Zambia, of relevance to issues of scaling and long-term sustainability. Examples of how the MAST approach has been adopted, scaled, and sustained in the land administration of each country are provided, and a number of recommended practices and key lessons for further scaling and sustaining are highlighted.