Moulton, Mary E.Westervelt, Theron2025-09-242025-09-242017Office of Science and Technology Policy (2013) Memorandum for the Heads of Executive Departments and Agencies: Increasing Access to the Results of Federally Funded Scientific Research. Retrieved July 17, 2019, from: https://obamawhitehouse.archives.gov/sites/default/files/microsites/ostp/ostp_public_access_memo_2013.pdf United States Department of Transportation (2019) National Transportation Knowledge Network (NTKN). Retrieved July 17, 2019, from: https://transportation.libguides.com/ntkn United States Department of Transportation (2018) National Transportation Library Collection Development and Maintenance Policy, version 1.3. Retrieved July 17, 2019, from: https://ntl.bts.gov/sites/bts.dot.gov/files/docs/ntl/219951/ntlcollectiondevelopmentpolicy132018-01-22.pdf United States Department of Transportation (2015) Plan to Increase Public Access to the Results of Federally-Funded Scientific Research Results. Retrieved July 17, 2019, from: https://rosap.ntl.bts.gov/view/dot/29637 United States Department of Transportation (2019) Transportation Librarians Roundtable. Retrieved July 17, 2019, from: https://transportation.libguides.com/TLRhttps://repository.ifla.org/handle/20.500.14598/6692The National Transportation Library (NTL) at the US Department of Transportation (US DOT) provides national and international access to the crucial transportation information which falls within the realm of grey literature, including the results of US government funded research. Founded as an all-digital library in 1998, NTL’s collections include full-text born digital and digitized publications, data products, and other resources. All items are in the public domain and available for reuse without restriction. Since 2016, NTL has led the implementation of the US DOT’s Official Public Access Plan issued in response to the February 22, 2013 Office of Science and Technology Policy (OSTP) Memorandum for the Heads of Executive Departments and Agencies entitled Increasing Access to the Results of Federally Funded Scientific Research. This paper discusses the effect this plan has had on a grey literature library and the efforts to create and maintain a public access repository, as well as exploring relationships between repository platform, content and people.enAttribution 4.0 Internationalhttps://creativecommons.org/licenses/by/4.0/Articlehttps://2019.ifla.org/conference-programme/satellite-meetings/open accessPublic accessdigital repositories