Besides NTIS, available via Engineering Village/Elsevier, Princeton University now has access to: NTRL (National Technical Reports Library)National Technical Information Service. Over 500,000 documents are available in full-text from departments such as Department of Energy, NASA, and the Environmental Protection Agency.
NTRS differs from NTIS in that it covers more years, mainly from 1960, but as far back as 1800. The database is updated daily and there is full text for about 25% of the reports.
Source: P.U.’s Engineering Library and Database Management Group