Established in 1998, the National Transportation Library is a part of the Bureau of Transportation Statistics that maintains and facilitates access to statistical and other information needed for transportation decision-making at the Federal, state, and local levels. It also coordinates with public and private transportation libraries and information providers to improve information sharing among the transportation community. The NTL's reference staff assists US DOT staff and the general public in locating transportation-related documents and reports, statistics, and subject experts at DOT. Reference staff is available from 8:00 a.m. to 5:00 p.m. EST to answer telephone calls and emails, or reference requests can be submitted at any time via the web through Ask-A-Librarian.