This chapter provides a comparative analysis of global energy efficiency policies, conducted specifically for this book. The analysis is conducted separately for each sector; building, transportation, industrial, and power. The main goal of performing such an analysis is to understand which regions and which countries have more energy efficiency policies for supporting energy efficiency in those sectors. This can be helpful in understanding which sectors the countries are paying more attention to, and why. One may argue that the number of policies do not necessarily indicate the level of devotion to energy efficiency, as a country can have one policy covering many different issues. However, repetitive action indicates dedication. Also, having many energy efficiency policies in a sector, means that the country is offering a diverse set of support mechanisms. Diversity is the key to peak productivity, as one policy may not be appealing to one consumer/producer and another type of policy can.