NTRL (National Technical Reports Library) offers a public interface for accessing authenticated government technical reports in the U.S.Department of Commerce NTIS (National Technical Information Service) database.The National Technical Information Service is a large central resource for U.S.government - funded scientific, technical, engineering, and business related information.The database of more than 3 million publications provides links to over 800, 000 full - text technical reports in 350 subject areas.Over 195, 000 brief records have been added for pre-1964 information.(Updated regul