This implementation manual is a practical guide providing suggestions on how to leverage the transitional OECD Impact Assessment Methodology for Digital Government in Colombia for future impact assessments across different levels of government throughout the Colombian administration. It builds on Chapters 2, 3 and 4 of this report, which should therefore be considered the main points of reference when reading this practical guide. The implementation manual details step-by step how the Colombian government can shape follow-up impact assessments. Recommendations for both the short and medium to long term are provided. The manual contains references to specific data and coding files that have been provided exclusively to the Colombian government.