The National Technical Information Service (NTIS) acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers access to these authenticated government technical reports.
The Technical Reports and Standards Unit (TRS) of the Library of Congress holds over 5 million current and historical technical reports and standards on microform, digital media and paper. Links to various indexes, lists, or other finding aids are also provided.
"A global science gateway comprised of national and international scientific databases and portals." Can search
multiple scientific sources around the world with a single query in one of ten supported languages.
Provides access to ongoing and completed science activities and scientific and technical products, conducted by EPA and by universities and other research institutions through EPA-funded assistance agreements.
For a broader search on EPA documents, please see the National Service Center for Environmental Publications (NSCEP).
The U.S. Department of Energy Office of Scientific and Technical Information's primary search tool for DOE science, technology, and engineering research and development results and the organizational hub for information about the DOE Office of Scientific and Technical Information. It consolidates OSTIs home page and our now retired primary search tool SciTech Connect. Dates of coverage: 1940s-current
Includes technical reports by the Waterways Experiment Station (WES), Engineering Research and Development Centers, and USACE districts; also Fish & Wildlife technical reports and annual fish counts from the WES and districts.
Transportation research database, covering the research literature on all transport modes, with aspects including planning, finance, design/construction, materials, environmental issues, safety, human factors, operations. Not included: vehicle standards/specs, patents, military transport. TRID is the merger of the former TRIS database from TRB plus the International Transport Research Documentation (ITRD) Database (from OECD partner countries).