NTIS is launching greater access to federally funded science & technology information and reports. Starting in October 2014, U.S. citizens will have free access to all electronically-available documents in the NTIS collection.
Currently there are more than 850,000 documents digitized for free public access. For the first time, Individuals will have the option to subscribe to the NTRL in order to benefit from the Premium features of the database, such as Digitization-on-Demand (NTRL Premium Individual). Premium Institutional subscribers (including corporations) will continue to have access to the more than 2.8 million records with a variety of enhanced features as listed in the chart below.
More at: http://www.ntis.gov/pdf/NTRNews7-3.pdf
National Technical Information Service (NTIS) connects to the database.
Princeton University Library has a subscription to NTRL reports,