TABLE 2-5 - Number of Air Carriers, Railroads, Interstate Motor Carriers, Marine Vessel Operators and Pipeline Operators: 2004-2009

TABLE 2-5 - Number of Air Carriers, Railroads, Interstate Motor Carriers, Marine Vessel Operators and Pipeline Operators: 2004-2009

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  2004 2005 2006 2007 2008 2009
Air carriers 83 85 87 87 88 97
Major air carriers 14 17 21 22 22 21
Other air carriers 69 68 66 65 66 76
Railroads 556 560 559 563 565 563
Class I freight railroads 7 7 7 7 7 7
Other railroads 549 553 552 556 558 556
Interstate motor carriersa 677,317 679,744 692,789 711,792 715,011 726,928
Marine vessel operators 767 733 682 707 652 U
Pipeline operators 2,267 2,316 2,358 2,380 2,348 2,338
Hazardous liquid 281 307 337 343 350 349
Natural gas transmission 946 975 1,004 1,012 996 1,027
Natural gas distribution 1,364 1,374 1,368 1,380 1,357 1,317

a 2004-2005 figures are for the fiscal year, October through September. 2006-2009 figures are snapshots dated Dec. 22, 2006; Dec. 21, 2007; Dec. 19, 2008; and Dec. 18, 2009.

NOTES: Air carrier groups are categorized based on their total annual operating revenues as major, national, large regional, and medium regional. The annual operating revenue threshold for Major air carriers is currently $1 billion, which is in Section 04 of Part 241 of Title 14 of the Code of Federal Regulations. The Other air carriers category contains all national, large regional, and medium regional air carriers. The Federal Motor Carrier Safety Administration deletes motor carriers from the Motor Carrier Management Information System (MCMIS) when they receive an official notice of a change in status. This most often occurs when a safety audit or compliance review is attempted. As a result, inactive carriers may be included in the MCMIS.

There is some overlap among the operators for the pipeline modes so the total number of Pipeline operators is lower than the sum for the three pipeline modes.

SOURCES: Air: Research and Innovative Technology Administration, Bureau of Transportation Statistics, Office of Airline Information; Railroads: Association of American Railroads; Motor Carriers: Federal Motor Carrier Safety Administration; Marine: U.S. Army Corps of Engineers; Pipeline: Pipeline and Hazardous Materials Safety Administration, Office of Pipeline Safety as cited in U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, National Transportation Statistics, table 1-2, available at http://www.bts.gov/publications/national_transportation_statistics/ as of April 2011.