The World Bank Group and the Physikalisch-Technische Bundesanstalt, the National Metrology Institute of Germany, have partnered to develop the first comprehensive Quality Infrastructure (QI) diagnostic and reform toolkit. It is designed to help development partners and country governments analyze the QI ecosystem and develop a coherent offering to support QI reforms and capacity development. This toolkit is also a valuable knowledge base for other interested parties to learn more about QI and reform their QI systems or parts thereof.