The U.S. Department of Transportation (DOT) is joining other federal government agencies in expanding the use of Web 2.0 social networking techniques to promote innovation. The department has unveiled the Digital Transportation Exchange, in which citizens, industry, all levels of government, and other stakeholders are invited to design "a thriving online marketplace for the agile creation of transportation solutions," according to DOT Chief Information Officer Nitin Pradhan. The DOT is in the midst of a legally mandated public comment period on the DTE concept. On September 16, a stakeholder meeting is scheduled at DOT headquarters in Washington, D.C. DOT staff is asked to participate via the agency's existing internal innovation website, Idea Scale.