This report presents background information and potential oversight issues for Congress on the Navy's Arleigh Burke (DDG-51) and Zumwalt (DDG-1000) class destroyer programs. The Navy procured DDG-51s from FY1985 through FY2005, and resumed procuring them in FY2010. The three DDG-51s requested for procurement in FY2019 are to be the 80th, 81st, and 82nd ships in the class. The Navy procured three DDG-1000s in FY2007-FY2009 and plans no further procurement of DDG-1000s.

This report provides brief descriptions of the FY2019 budget volumes and related documents, together with internet addresses, Government Publishing Office (GPO) stock numbers, and prices for obtaining print copies of these publications. It also explains how to find the locations of government depository libraries, which can provide both printed copies for reference use and internet access to the online versions.

This report begins with a discussion of the overall level of President Trump's FY2019 R&D request, followed by analyses of the R&D funding request from a variety of perspectives and for selected multiagency R&D initiatives. The remainder of the report then provides discussion and analysis of the R&D budget requests of selected federal departments and agencies that, collectively, account for approximately 99% of total federal R&D funding.