Technical Reports

National Technical Reports Library
Largest collection of U.S. government-sponsored technical reports available.

NASA Technical Reports Server
Database of scientific and technical information created or funded by NASA back to 1958, and NACA (1900-1958). Includes series reports, abstracts, book chapters and books, conference papers and presentations, contractor and grantee reports, journal articles, patents, technical reports, technical videos, and white papers.

Defense Technical Information Center (DTIC)
Department of Defense's central resource for citations and/or full-text access to over one million unclassified technical reports and other documents, dating primarily from the mid-1900s to the present, about military and other defense-related topics.
Technical Report Archive and Image Library (TRAIL)
Digital archive of US technical reports from current and past federal government agencies, including Atomic Energy Commission, National Bureau of Standards/NIST, Army Corps of Engineers, and Bureau of Mines.

HathiTrust
Archive of millions of digitized, full-text materials from libraries around the world, including technical reports.

OSTI.GOV
Database of technical reports, journal articles, datasets, software, patents, and conference and workshop papers funded by funded by the Department of Energy and its predecessor agencies.