Abstract
Executive orders (EOs) are one of the ways that U.S. Presidents provide direction to Federal agencies. Even though EOs do not carry the full of force of law, and are not enforceable in court, they can be a visible and effective way for Presidents to communicate expectations to Federal agencies. This article discusses how Federal agencies are collaborating more effectively on environmental reviews of major transportation projects in response to a new Presidential mandate as directed by EO 13274 entitled, "Environmental Stewardship and Transportation Infrastructure Project Reviews," signed on September 18, 2002.