A:
Alternative Fuels and Advanced Vehicles Data Center - A comprehensive clearinghouse of data, publications, tools, and information related to advanced transportation technologies. [U.S. Department of Energy (DOE), Office of Energy Efficiency and Renewable Energy (EERE)]

B:
Bridges - Science Tracer Bullet - Bridges - Science Tracer Bullets - Research Finding Aids from the Library of Congress, Science Reference Services. [U.S. Library of Congress (LOC)]

T:
TSA: Advanced Imaging Technology - Technology to help ensure travel safety [U.S. Department of Homeland Security (DHS), Travel Security Administration]

V:
Vehicle Technologies Program - Develops more energy efficient and environmentally friendly highway transportation technologies that enable America to use less petroleum. [U.S. Department of Energy (DOE), Office of Energy Efficiency and Renewable Energy (EERE)]