This book presents long-term projections of energy supply, demand, and prices through 2030. The projectionsare based on results from EIA’s National Energy Modeling System (NEMS). The report begins with an “Overview”. The next section, “Legislation and Regulations,” discusses evolving legislation and regulatory issues, including recently enacted legislation and regulation, such as the new Corporate Average Fuel Economy (CAFE) standards for lightduty trucks finalized by the National Highway Traffic Safety Administration (NHTSA) in March 2006. It also provides an update on the handling of key provisions in the Energy Policy Act of 2005 (EPACT2005) that could not be incorporated in the Annual Energy Outlook 2006 (AEO2006) because of the absence of implementing regulations or funding appropriations. Finally, it provides a summary of how sunset provisions in selected Federal fuel taxes and tax credits are handled.