"Table 2. Data Sources for Government Transportation Revenues, Expenditures, Grants, Budget Authority, and Obligations
",,
Mode,Level of Government,Data Source
Highway,Federal,"Revenues:
"
,,"U.S. Department of Transportation, Federal Highway Administration, Highway Statistics (Washington, D.C.: Annual issues), table-210. 
"
,,"Expenditures and Grants:
"
,,"For 1991 and preceding years—Estimated based on data from U.S. Department of Transportation, Federal Highway Administration, Highway Statistics (Washington, D.C.: Annual issues), and Executive Office of the President of the United States, Office of Management and Budget, Budget of the United States Government – Appendix (Washington, D.C.: Annual issues).
"
,,"For 1992 and the latest year available—U.S. Department of Transportation, Federal Highway Administration, Highway Statistics (Washington, D.C.: Annual issues), table FA-5.
"
,,"Capital Expenditures:
"
,,"U.S. Department of Transportation, Federal Highway Administration, Highway Statistics (Washington, D.C.: Annual issues), table HF-10A
"
,,"Budget Authority:
"
,,"Executive Office of the President of the United States, Office of Management and Budget, Budget of the United States Government Fiscal Year 2005 - Public Budget Database (Washington, D.C.), available at http://w3.access.gpo.gov/usbudget/, as of May 2004."
,,"Obligations:
"
,,"Executive Office of the President of the United States, Office of Management and Budget, Budget of the United States Government – Appendix (Washington, D.C.: Annual issues)."
Highway,State & Local,"Revenues, Expenditures, and Capital Expenditures:
"
,,"U.S. Department of Commerce, Bureau of the Census, State and Local Government Finance Estimates (Washington, D.C.), available at ftp://ftp.census.gov/pub/outgoing/govs/, as of May 2004.
"
Transit,Federal,"Revenues:
"
,,"U.S. Department of Transportation, Federal Highway Administration, Highway Statistics (Washington, D.C.: Annual issues), table FE-210.
"
,,"Expenditures and Grants:
"
,,"Executive Office of the President of the United States, Office of Management and Budget, Budget of the United States Government Fiscal Year 2005 - Public Budget Database (Washington, D.C.), available at http://w3.access.gpo.gov/usbudget/, as of May 2004."
,,"Capital Expenditures:
"
,,"Executive Office of the President of the United States, Office of Management and Budget, Budget of the United States Government Fiscal Year 2005 - Public Budget Database (Washington, D.C.), available at http://w3.access.gpo.gov/usbudget/, as of May 2004.  "
,,"Budget Authority:
"
,,"Executive Office of the President of the United States, Office of Management and Budget, Budget of the United States Government Fiscal Year 2005 - Public Budget Database (Washington, D.C.), available at http://w3.access.gpo.gov/usbudget/, as of May 2004."
,,"Obligations:
"
,,"Executive Office of the President of the United States, Office of Management and Budget, Budget of the United States Government – Appendix (Washington, D.C.: Annual issues)."
Transit,State & Local,"Revenues, Expenditures, and Capital Expenditures:
"
,,"U.S. Department of Commerce, Bureau of the Census, State and Local Government Finance Estimates (Washington, D.C.), available at ftp://ftp.census.gov/pub/outgoing/govs/, as of May 2004.
"
Rail,Federal,"Revenues:
"
,,"See discussion on page 19.
"
,,"Expenditures and Grants:
"
,,"Executive Office of the President of the United States, Office of Management and Budget, Budget of the United States Government Fiscal Year 2005 - Public Budget Database (Washington, D.C.), available at http://w3.access.gpo.gov/usbudget/, as of May 2004."
,,"Capital Expenditures:
"
,,"For 1995 and preceding years personal communication with FRA.  After 1995 - Executive Office of the President of the United States, Office of Management and Budget, Budget of the United States Government Fiscal Year 2005 - Public Budget Database (Washington, D.C.), available at http://w3.access.gpo.gov/usbudget/, as of May 2004."
,,"Budget Authority:
"
,,"Executive Office of the President of the United States, Office of Management and Budget, Budget of the United States Government Fiscal Year 2005 - Public Budget Database (Washington, D.C.), available at  http://w3.access.gpo.gov/usbudget/, as of May 2004."
,,"Obligations:
"
,,"Executive Office of the President of the United States, Office of Management and Budget, Budget of the United States Government – Appendix (Washington, D.C.: Annual issues)."
Rail,State & Local,"Estimated based on information from Executive Office of the President of the United States, Office of Management and Budget, Budget of the United States Government Fiscal Year 2005 - Public Budget Database (Washington, D.C.), available at http://w3.access.gpo.gov/usbudget/, as of May 2004.
"
Air,Federal,"Revenues:
"
,,"U.S. Department of Transportation, Federal Aviation Administration, Budget in Brief, (Annual issues), available at http://www.faa.gov/aba/html_budget/index.html, as of May 2004. "
,,"Expenditures and Grants:
"
,,"Executive Office of the President of the United States, Office of Management and Budget, Budget of the United States Government Fiscal Year 2005 - Public Budget Database (Washington, D.C.), available at http://w3.access.gpo.gov/usbudget/, as of May 2004.  For NASA - NASA, Aeronautics and Space Report of the President (Washington, D.C.: Annual issues), available at http://www.hq.nasa.gov/hq/nasrepts.htm, as of May 2004."
,,"Capital Expenditures:
"
,,"Executive Office of the President of the United States, Office of Management and Budget, Budget of the United States Government Fiscal Year 2005 - Public Budget Database (Washington, D.C.), available at http://w3.access.gpo.gov/usbudget/, as of May 2004.  For NASA - NASA, Aeronautics and Space Report of the President (Washington, D.C.: Annual issues), available at http://www.hq.nasa.gov/hq/nasrepts.htm, as of May 2004."
,,"Budget Authority:
"
,,"Executive Office of the President of the United States, Office of Management and Budget, Budget of the United States Government Fiscal Year 2005 - Public Budget Database (Washington, D.C.), available at http://w3.access.gpo.gov/usbudget/, as of May 2004.  For NASA - NASA, Aeronautics and Space Report of the President (Washington, D.C.: Annual issues), available at http://www.hq.nasa.gov/hq/nasrepts.htm, as of May 2004."
,,"Obligations:
"
,,"Executive Office of the President of the United States, Office of Management and Budget, Budget of the United States Government – Appendix (Washington, D.C.: Annual issues)."
Air,State & local,"Revenues, Expenditures, and Capital Expenditures:
"
,,"U.S. Department of Commerce, Bureau of the Census, State and Local Government Finance Estimates (Washington, D.C.), available at ftp://ftp.census.gov/pub/outgoing/govs/, as of May 2004.
"
Water,Federal,"Revenues:
"
,,"Executive Office of the President of the United States, Office of Management and Budget, Budget of the United States Government – Appendix (Washington, D.C.: Annual issues).  "
,,"Expenditures and Grants:
"
,,"Executive Office of the President of the United States, Office of Management and Budget, Budget of the United States Government Fiscal Year 2005 - Public Budget Database (Washington, D.C.), available at http://w3.access.gpo.gov/usbudget/, as of May 2004 except U.S. Army Corps of Engineers (USACE).  For USACE  -personal communication."
,,"Capital Expenditures:
"
,,"For MARAD and USCG - Executive Office of the President of the United States, Office of Management and Budget, Budget of the United States Government Fiscal Year 2005 - Public Budget Database (Washington, D.C.), available at http://w3.access.gpo.gov/usbudget/, as of May 2004. 
"
,,"For Saint Lawrence Seaway Development Corporation, Panama Canal Commission, and USACE - personal communication.
"
,,"Budget Authority:
"
,,"Executive Office of the President of the United States, Office of Management and Budget, Budget of the United States Government Fiscal Year 2005 - Public Budget Database (Washington, D.C.), available at  http://w3.access.gpo.gov/usbudget/, as of May 2004 except U.S. Army Corps of Engineers (USACE).  For USACE  -personal communication."
,,"Obligations:
"
,,"Executive Office of the President of the United States, Office of Management and Budget, Budget of the United States Government – Appendix (Washington, D.C.: Annual issues) except U.S. Army Corps of Engineers (USACE).  For U.S. Army Corps of Engineers (USACE) – personal communication.
"
Water,State & Local,"Revenues, Expenditures, and Capital Expenditures:
"
,,"U.S. Department of Commerce, Bureau of the Census, State and Local Government Finance Estimate (Washington, D.C.), available at ftp://ftp.census.gov/pub/outgoing/govs/, as of May 2004."
Pipeline,Federal,"Revenues:
"
,,"Executive Office of the President of the United States, Office of Management and Budget, Budget of the United States Government – Appendix (Washington, D.C.: Annual issues)."
,,Expenditures and Grants:
,,"Executive Office of the President of the United States, Office of Management and Budget, Budget of the United States Government Fiscal Year 2005 - Public Budget Database (Washington, D.C.), available at http://w3.access.gpo.gov/usbudget/, as of May 2004."
,,"Capital Expenditures:
"
,,"Executive Office of the President of the United States, Office of Management and Budget, Budget of the United States Government Fiscal Year 2005 - Public Budget Database (Washington, D.C.), available at http://w3.access.gpo.gov/usbudget/, as of May 2004."
,,"Budget Authority:
"
,,"Executive Office of the President of the United States, Office of Management and Budget, Budget of the United States Government Fiscal Year 2005 - Public Budget Database (Washington, D.C.), available at http://w3.access.gpo.gov/usbudget/, as of May 2004."
,,"Obligations:
"
,,"Executive Office of the President of the United States, Office of Management and Budget, Budget of the United States Government – Appendix (Washington, D.C.: Annual issues). "
General Support,Federal,"Revenues:
"
,,"Executive Office of the President of the United States, Office of Management and Budget, Budget of the United States Government – Appendix (Washington, D.C.: Annual issues). "
,,"Expenditures:
"
,,"Executive Office of the President of the United States, Office of Management and Budget, Budget of the United States Government Fiscal Year 2005 - Public Budget Database (Washington, D.C.), available at http://w3.access.gpo.gov/usbudget/, as of May 2004."
,,"Budget Authority:
"
,,"Executive Office of the President of the United States, Office of Management and Budget, Budget of the United States Government Fiscal Year 2005 - Public Budget Database (Washington, D.C.), available at http://w3.access.gpo.gov/usbudget/, as of May 2004."
,,"Obligations:
"
,,"Executive Office of the President of the United States, Office of Management and Budget, Budget of the United States Government – Appendix (Washington, D.C.: Annual issues)."