The Guidebook is a ready reckoner for transit agencies to help them adopt a calibrated approach to induct electric buses in their services. This is to ensure that the technology shift neither disrupts the quality of the bus service nor becomes burdensome for the transit agencies. Such a phased implementation hinges on several technical and financial considerations which are often inter-linked and limited by some constraints. To address this complex problem, the Guidebook suggests a six-step approach and two decision trees for transit agencies’ reference for route prioritization and implementation planning