Background In response to concerns about RDa raised by the library of Congress Working Group on the Future of Bibliographic Control, the three U.s. national libraries--the Library of Congress, the National Library of Medicine and the National Agricultural Library--made a commitment to the further development and completion of RDA. The three libraries agreed to make a joint decision on whether or not to implement rda, based on the results of a test of both rda and the Web product. The goal of the test is to assure the operational, technical, and economic feasibility of rDa Testers will include the three national libraries and the broader U.s. library community Columbia University is one of selected testing institutions More information on LC WG website at http://www.loc.gov/bibliographic-future/rdal3 Background ◼ In response to concerns about RDA raised by the Library of Congress Working Group on the Future of Bibliographic Control, the three U.S. national libraries—the Library of Congress, the National Library of Medicine and the National Agricultural Library—made a commitment to the further development and completion of RDA. The three libraries agreed to make a joint decision on whether or not to implement RDA, based on the results of a test of both RDA and the Web product. The goal of the test is to assure the operational, technical, and economic feasibility of RDA. Testers will include the three national libraries and the broader U.S. library community. ◼ Columbia University is one of selected testing institutions. ◼ More information on LC WG website at: http://www.loc.gov/bibliographic-future/rda/