This annual report contains information on the federal funding of the research and development components of agency programs as proposed by the administration for fiscal year 2001. Research and development data are classified into the same federal budget function categories as those used in the "Budget of the United States Government, Fiscal Year 2001." The report is divided into four sections. Section 1, "Research and Development in the 2001 Budget: A Brief Overview," provides an overview of federal funding of research and development within the context of requested total federal budget authority. Section 2, "Federal R&D [Research and Development] Budget Function," consists of five tables and summarizes activities conducted within each budget function. Section 3, "R&D by Specific Budget Function," presents data on R&D activities conducted within each budget function. This section consists of 19 tables that provide a summary for fiscal year 1999-2001. Section 4 contains two historical data series: (a) "Federal Research and Development Funding by Function for Fiscal Years 1955-2001," and (b) "Federal Funding of Basic Research for Fiscal Years 1978-2001." (ASK)