American Association of Law Libraries; American Commitment; American Library Association; Association of Research Libraries; Bill of Rights Defense Committee & Defending Dissent Foundation; Campaign for Liberty; Center for Data Innovation; Center for Responsive Politics; Center for Science and Democracy at the Union of Concerned Scientists; Citizens for Responsibility and Ethics in Washington; Charles E. Shain Library — Connecticut College; Common Cause; Council for Citizens Against Government Waste; CSU Sacramento; Data Coalition; Demand Progress; Evans Library — Florida Institute of Technology; Free Government Information; FreedomWorks; Heritage Action for America; Hesburgh Libraries — University of Notre Dame; King University Libraries; Liberty Coalition; National Coalition for History; National Security Archive; National Security Counselors; National Taxpayers Union; New America’s Open Technology Institute; OpenTheGovernment.org; Project On Government Oversight (POGO); Public Citizen; Quorum; R Street Institute; Stanford University Libraries; Sunlight Foundation; Taxpayers for Common Sense; Taxpayers Protection Alliance; The Niskanen Center; Transactional Records Access Clearinghouse (TRAC); University of Missouri — Columbia(3/3/2016)
American Association of Law Libraries; American Library Association; Association of Research Libraries; Citizens for Responsibility and Ethics in Washington; Data Coalition; Demand Progress; Free Government Information; Government Accountability Project; Government Information Watch; GovTrack.us; National Freedom of Information Coalition; National Security Archive; National Security Counselors; Open The Government; Project on Government Oversight; R Street Institute; Senior Executives Association(10/15/2019)
American Association of Law Libraries; American Library Association; American Society of News Editors; Association of Alternative Newsmedia; Association of Research Libraries; Bill of Rights Defense Committee; Center for Science and Democracy at the Union of Concerned Scientists; Citizens for Responsibility and Ethics in Washington; Common Cause; Data Coalition; Defending Dissent Foundation; Demand Progress; Free Government Information; Government Accountability Project; OpenTheGovernment.org; Project On Government Oversight; R Street Institute; Society of American Archivists; Sunlight Foundation(3/8/2016)