The annual Supplement to the Presidents Budget for the NITRD Program provides a technical summary of the research activities planned and coordinated through NITRD in a given federal budget cycle, as required by law.The details are organized by PCA and presented using a common format: Listing of the NITRD member agencies and participating agencies active in the PCA; Definition of the research covered in the PCA; Strategic priorities in the PCA for the forthcoming fiscal year; Budget highlights ? agencies key R and D programs and topical emphases in the PCA for the forthcoming year;Interagency coordination ? current and planned activities in which multiple agencies are collaborating; Ongoing core activities of each agency in the PCA;The NITRD Supplement includes an annual budget table and budget analysis section, organized by PCA and by agency, to facilitate budgetary and programmatic comparisons from year to year. In addition, the NITRD Supplement provides brief summaries of the interagency program focus areas coordinated under the NITRD Programs CoP and SSGs, including each group?s strategic priorities and current and planned coordination activities for the forthcoming year. The Presidents FY 2016 budget request for the NITRD Program is $4.1 billion, while the FY 2015 estimate totaled $4.0 billion. Details of the budget are presented in the table on pages 6-7 and discussed in the budget analysis section.