TABLE 2-1-2 - Number of Air Carriers, Railroads, Interstate Motor Carriers, Marine Vessel Operators and Pipeline Operators: 1998-2008

TABLE 2-1-2 - Number of Air Carriers, Railroads, Interstate Motor Carriers, Marine Vessel Operators and Pipeline Operators: 1998-2008

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  1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008
Air carriers 87 84 84 85 74 72 81 80 87 87 88
Major air carriers 14 14 16 16 15 14 15 15 21 22 22
Other air carriers 73 70 68 69 59 58 66 65 66 65 66
Railroads 559 555 560 571 552 549 556 560 559 563 565
Class I railroads 9 9 8 8 7 7 7 7 7 7 7
Other railroads 550 546 552 563 545 542 549 553 552 556 558
Interstate motor carriersa 477,486 517,297 560,393 592,909 600,104 674,314 677,317 679,744 692,789 711,792 715,011
Marine vessel operators 1,235 1,174 1,114 1,063 877 798 767 733 682 707 652
Pipeline operators 2,236 2,238 2,157 2,135 2,186 2,216 2,256 2,304 2,333 2,345 2,242
Hazardous liquid 219 215 220 220 217 234 280 306 331 340 339
Natural gas transmission 889 885 844 837 920 948 945 974 1,001 1,002 967
Natural gas distribution 1,375 1,393 1,363 1,341 1,331 1,311 1,356 1,364 1,349 1,357 1,285

a1998-2005 figures are for the fiscal year, October through September. 2006-2008 figures are snapshots dated Dec. 22, 2006; Dec. 21, 2007; and Dec. 19, 2008.

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. Interstate motor carrier figures are for the fiscal year, October through September. 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 2010.