MCA4climate is an initiative of the United Nations Environment Programme (UNEP), which provides practical assistance to governments in preparing their climate change mitigation and adaptation plans and strategies. It aims to help governments, particularly in developing countries, identify policies and measures that are low cost, environmentally effective and consistent with national development goals. This report is intended to provide a formal record of the results of the MCA4climate initiative to date. It contains four sections, the findings of which can be used independently to address specific issues or as a whole to conduct a comprehensive evaluation of climate policy plans. The sections are as follows: climate policy options, MCA4climate policy evaluation framework, case studies and guiding principles for climate-policy planning.