U.S. federal government's central source for scientific, technical, engineering, and related business information produced for the U.S. government, including complimentary international materials.
US National Library of Medicine resource for searching databases on toxicology, hazardous chemicals, environmental health, and toxic releases information.
Integrated database combining records from TRB's Transportation Research Information Services (TRIS) Database and the OECD's Joint Transport Research Centre’s International Transport Research Documentation (ITRD) Database.