In the last several years, there has been a significant growth in the activities of the Department of Energy's Appliance and Commercial Equipment Standards program. EETD's Energy Efficiency Standards group has been heavily involved in the analyses supporting recently published federal energy conservation standards, for a diverse set of appliances and commercial equipment. In this talk, I will review the EES group's efforts supporting these energy conservation standards. Collectively, they are estimated to save the nation between 14.15 to 15.17 quads (quadrillion Btu) of primary energy over a 30-year period. This is equivalent to approximately 15% of total U.S. annual primary energy consumption. In addition, these standards will save consumers an estimated 20.3 to 24.6 billion dollars over the same time period (at a 7% discount rate) and will avoid 778 to 808 million metric tons (MMT) of CO2 emissions. I will also review some of the group's ongoing work developing energy conservation standards for many other products.