Today at 4:55pm ET, President Obama will sign into law Chairman Boxer and Ranking Member Inhofe's Surface Transportation Reauthorization Bill, MAP-21. Congress passed the bill on June 29, with overwhelming bipartisan support, as part of a legislative package that included provisions related to student loans and flood insurance. A live webcast of this event can be found at http://www.whitehouse.gov/live starting at 4:55pm ET.