Compendium of Best Practices is the result of extensive outreach, data gathering, and analysis conducted to identify leading state and local-level best practices in energy efficiency and renewable energy in the United States. The report describes more than 20 practices and includes examples of their effective implementation in states or cities. Policies, financing mechanisms, and other initiatives are highlighted for their success in creating favorable market conditions for energy efficiency and renewable energy, as well as for their replicability, relative ease of implementation, measured energy savings, ability to offset the need for conventional energy, cost effectiveness, greenhouse gas emissions reduction, and job creation. Exemplary local governments from across the United States share the key elements of their programs, their lessons learned, and the factors in their programs’ successes. RAP’s Wayne Shirley and Rick Weston were among those who provided support to the authors.