This guidebook provides national development banks (NDBs) a roadmap to integrating climate risk into their lending strategies and portfolio management in accordance with the recommendations of the Task Force on Climate-related Financial Disclosures. The journey from little action on climate to becoming climate capable allows an NDB to better understand the financial risk to itself and its clients arising from climate change, and allows it to capture new opportunities. Making climate-informed investment and lending decisions and, in the long term, allocating capital in a manner that aligns with the global curbing of emissions is good business. This guidebook is written for those NDBs heeding the call to address the climate challenges in their countries as well as to raise awareness of the urgency to act on climate risks among those that are new to the topic. NDBs, as financial institutions, need to address the potential impacts on their existing and future portfolios and financial positions.