Corporate Average Fuel Economy (CAFE) standards are fleet-wide fuel economy averages that motor vehicle manufacturers must meet each model year. On May 19th, 2009, President Obama announced a plan to integrate CAFE standards administered by the National Highway Traffic Safety Administration (NHTSA) with automotive greenhouse gas (GHG) emissions standards to be issued by the Environmental Protection Agency (EPA). This book explores the CAFE standards and its environmental and economical impacts.