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Search TRID, the TRIS and ITRD database, for U.S. and international material.
Search the Science.gov database for federal science and technology resources.
Search the TRB Research in Progress (RIP) Database for current research projects.
Search the TLCat - Transportation Libraries Catalog for transportation-related books and other materials held in government, university and other transportation libraries.
Search the National Technical Information Service Database for government-funded documents published since 1990.