The Department's FY 2004 budget request totals $54.3 billion in mandatory and discretionary funding. This represents an overall increase of $2.9 billion or 6 percent when compared to the President's FY 2003 request. The Department's five key performance goals - improve safety, increase mobility in support of the Nation's economy, protect the human and natural environment, achieve organizational excellence, and support homeland and national security - form the basis for the FY 2004 budget request. Transportation safety continues to be the Department's top priority. The FY 2004 budget request proposes overall transportation safety funding of $14.4 billion. Because the human toll and economic cost of transportation accidents are massive, promoting public health and transportation safety is the first objective of all DOT agencies. To support this effort, the budget request provides funding increases in FY 2004 for the Federal Motor Carrier Safety Administration (FMCSA) and the National Highway Traffic Safety Administration (NHTSA) whose primary mission is safety. In addition, the Federal Aviation Administration (FAA), Federal Railroad Administration (FRA), and the Federal Highway Administration (FHWA) will increase their focus on safety goals. The search for new technological and innovative solutions to our mobility challenges is well supported in the FY 2004 budget request, with investment in technology, research, and development proposed at $1 billion Development and increased use of technologies, such as Intelligent Transportation Systems (ITS), are proposed in the FY 2004 budget. A total of $121 million is requested for ITS research, operational tests, and deployment to further increase the number of integrated ITS locations. The FY 2004 budget proposes $3.5 billion for environmental initiatives. The FY 2004 budget request provides $632.2million for the Department's homeland and national security activities. DOT's goal is to provide the resources necessary to support our Nation's transportation system. The funding requested in 2004 will help improve transportation safety, enhance homeland and national security, maintain and expand our transportation infrastructure and increase its capacity, reduce environmental degradation, and improve the quality of life for all citizens. This document provides highlights of the Department's budget request by operating administration.