This report summarizes the recorded achievements of government energy efficiency standards and labelling programs. It draws from over 100 publications that detail evidence of the impacts of such programs in 20 countries, and it covers more than 25 different product types. The recorded impacts summarized include increases in the energy efficiency of appliances, equipment and lighting technologies, over and above autonomous rates of change; reductions in national energy consumption and associated greenhouse gas emissions savings; changes in the consumer purchase price of appliances and equipment; delivery of co-benefits, such as employment, health and energy security; the effects on manufacturing innovation and market transformation; and additional energy services purchased by beneficiaries of energy efficiency fuel bill reductions—the “rebound” effect.