HAZMAT Table 19,,,,,,,,,,,,,,,,
"Hazardous Material Shipment Characteristics by Selected NAICS Codes and Mode of Transportation: 2007
",,,,,,,,,,,,,,,,
"Estimates are based on data from the 2007 Commodity Flow Survey. Because of rounding, estimates may not be additive.
",,,,,,,,,,,,,,,,
NAICS Code (1),NAICS Code Description,Mode of Transportation,Value,,Tons,,Ton-miles (2),,"Average miles 
per shipment",Value,,Tons,,Ton-miles,,"Average
miles per shipment CV"
,,,"2007 
(million $)",Percent,"2007
(thousands)",Percent,"2007
(millions)",Percent,,CV (3),Standard Error of %,CV,Standard Error of %,CV,Standard Error of %,
,Total,All modes," 1,448,218 ",100 ," 2,231,133 ",100 ," 323,457 ",100 , 96 ,2.6,-,3.3,-,4.6,-,8.1
,Total,Single modes," 1,370,615 ", 94.6 ," 2,111,622 ", 94.6 ," 279,105 ", 86.3 , 65 ,2.4,0.6,3.2,0.6,4.1,1.6,8.6
,Total,Truck (4)," 837,074 ", 57.8 ," 1,202,825 ", 53.9 ," 103,997 ", 32.2 , 59 ,3.4,1.5,5.4,1.8,6.5,1.9,9.4
,Total,For-hire truck ," 358,792 ", 24.8 ," 495,077 ", 22.2 ," 63,288 ", 19.6 , 214 ,5.9,1.8,6.5,1.6,8.2,1.8,20.1
,Total,Private truck," 478,282 ", 33.0 ," 707,748 ", 31.7 ," 40,709 ", 12.6 , 32 ,5.5,1.1,7.4,1.3,9.3,1,4.5
,Total,Rail," 69,213 ", 4.8 ," 129,743 ", 5.8 ," 92,169 ", 28.5 , 578 ,8.2,0.4,10.4,0.5,8,1.6,11.2
,Total,Water," 69,186 ", 4.8 ," 149,794 ", 6.7 ," 37,064 ", 11.5 , 383 ,15.9,0.7,13.3,0.8,15.2,1.8,22.8
,Total,Shallow draft," 57,022 ", 3.9 ," 124,396 ", 5.6 ," 22,411 ", 6.9 , S ,19,0.7,16.1,0.8,26.3,1.8,S
,Total,Great Lakes, S , S , S , S , S , S , S ,S,S,S,S,S,S,S
,Total,Deep draft," 11,626 ", 0.8 ," 24,181 ", 1.1 ," 13,767 ", 4.3 , 861 ,13.2,0.1,13.8,0.2,23.2,1.1,16.5
,Total,Air (incl truck and air)," 1,735 ", 0.1 , S , S , S , S ," 1,095 ",34.9,0.1,S,S,S,S,7.5
,Total,Pipeline (5)," 393,408 ", 27.2 ," 628,905 ", 28.2 , S , S , S ,5.7,1.5,5.3,1.8,S,S,S
,Total,Multiple modes," 71,069 ", 4.9 ," 111,022 ", 5.0 ," 42,886 ", 13.3 , 834 ,12.5,0.5,13.5,0.6,14.4,1.6,5.4
,Total,"Parcel, U.S.P.S. or courier"," 7,675 ", 0.5 , 236 , - , 151 , - , 836 ,19.4,0.1,16.7,-,28.9,-,5.6
,Total,Truck and rail," 7,052 ", 0.5 ," 11,706 ", 0.5 ," 10,120 ", 3.1 , 779 ,16.8,0.1,16.2,0.1,18.2,0.5,11.2
,Total,Truck and water," 23,451 ", 1.6 ," 36,588 ", 1.6 ," 12,380 ", 3.8 ," 1,010 ",24.8,0.3,23.5,0.3,20.1,0.7,28.4
,Total,Rail and water," 5,153 ", 0.4 ," 5,742 ", 0.3 ," 2,937 ", 0.9 ," 1,506 ",20.4,0.1,19.1,0.1,24.1,0.2,22.6
,Total,Other multiple modes," 27,739 ", 1.9 ," 56,750 ", 2.5 ," 17,297 ", 5.3 , 233 ,20.3,0.4,19.9,0.5,25.6,1.2,13.8
,Total,Other and unknown modes," 6,534 ", 0.5 ," 8,489 ", 0.4 ," 1,466 ", 0.5 , 58 ,9.2,-,10.8,-,24.6,0.1,26.8
324,Petroleum and coal products manufacturing,All modes,"521,454",100,"930,698",100,"128,090",100,115,3.9,-,4.8,-,6.9,-,8.4
324,Petroleum and coal products manufacturing,Single modes,"480,387",92.1,"859,686",92.4,"104,053",81.2,111,3.9,1.1,4.9,1.1,7.3,2.6,8.1
324,Petroleum and coal products manufacturing,Truck (4),"91,399",17.5,"197,961",21.3,"17,576",13.7,90,9.2,1.6,15.6,2.5,12.1,2.2,8.6
324,Petroleum and coal products manufacturing,For-hire truck,"47,977",9.2,"109,389",11.8,"9,666",7.5,96,16.6,1.5,15.4,1.6,13.5,1.4,8.4
324,Petroleum and coal products manufacturing,Private truck,"43,422",8.3,"88,573",9.5,"7,910",6.2,82,21.3,1.8,24.8,1.9,19,1.4,12.9
324,Petroleum and coal products manufacturing,Rail,"18,415",3.5,"38,394",4.1,"21,501",16.8,639,24,0.8,19.2,0.7,15,2.3,7.7
324,Petroleum and coal products manufacturing,Water,"44,350",8.5,"102,472",11,"29,110",22.7,293,17.6,1.4,15.7,1.5,18.8,3.3,18.3
324,Petroleum and coal products manufacturing,Shallow draft,"35,022",6.7,"83,265",8.9,"16,096",12.6,154,21,1.3,18.7,1.4,36.8,3.5,19.9
324,Petroleum and coal products manufacturing,Deep draft,"9,328",1.8,"19,206",2.1,"13,014",10.2,642,10.5,0.2,10.2,0.3,21.5,2.5,12.8
324,Petroleum and coal products manufacturing,Air (incl truck and air),S,S,S,S,S,S,471,S,S,S,S,S,S,31.6
324,Petroleum and coal products manufacturing,Pipeline (5),"326,212",62.6,"520,840",56,S,S,S,5.5,2.2,5.1,2.9,S,S,S
324,Petroleum and coal products manufacturing,Multiple modes,"40,958",7.9,"70,862",7.6,"24,016",18.7,451,16.2,1.1,15.4,1.1,15.9,2.6,17.1
324,Petroleum and coal products manufacturing,"Parcel, U.S.P.S. or courier",S,S,-,-,-,-,607,S,S,47.1,-,48.1,-,32.1
324,Petroleum and coal products manufacturing,Truck and rail,"1,206",0.2,"1,833",0.2,"1,461",1.1,802,39.4,0.1,32.2,0.1,44.4,0.4,10.8
324,Petroleum and coal products manufacturing,Truck and water,"20,491",3.9,"32,287",3.5,"10,658",8.3,S,28.2,1,26.9,0.9,22.4,1.6,S
324,Petroleum and coal products manufacturing,Rail and water,"1,240",0.2,"1,981",0.2,939,0.7,490,49.2,0.2,40.1,0.1,33.3,0.4,44.3
324,Petroleum and coal products manufacturing,Other multiple modes,"18,012",3.5,"34,760",3.7,"10,958",8.6,257,22.5,0.9,23,0.9,25.5,2.1,14.3
324,Petroleum and coal products manufacturing,Other and unknown modes,S,S,151,-,21,-,S,S,S,48.1,-,31.5,-,S
325,Chemical manufacturing,All modes,"169,740",100,"248,941",100,"101,050",100,529,7.4,-,7.6,-,3.6,-,8.4
325,Chemical manufacturing,Single modes,"153,730",90.6,"227,135",91.2,"86,953",86,389,7.6,0.9,8.3,1.6,3.5,1.9,5.4
325,Chemical manufacturing,Truck (4),"70,694",41.6,"98,332",39.5,"22,954",22.7,332,4.3,2.7,12.8,4.7,10.5,2.2,4.5
325,Chemical manufacturing,For-hire truck,"53,712",31.6,"41,479",16.7,"16,289",16.1,534,6,2.8,6.4,1.8,9.5,1.5,3.2
325,Chemical manufacturing,Private truck,"16,981",10,"56,854",22.8,"6,665",6.6,138,13.5,1,19.2,3.8,16.6,1,7.8
325,Chemical manufacturing,Rail,"43,586",25.7,"63,084",25.3,"54,042",53.5,844,4.6,1.8,1.5,2.3,3.7,2.6,2.5
325,Chemical manufacturing,Water,"9,117",5.4,"16,611",6.7,"5,286",5.2,423,22.7,1.1,20.1,0.9,30.4,1.4,21.6
325,Chemical manufacturing,Shallow draft,"7,392",4.4,"12,430",5,"4,958",4.9,348,26,1.1,22,0.8,32.4,1.4,18
325,Chemical manufacturing,Deep draft,"1,726",1,"4,181",1.7,S,S,S,28.9,0.3,43.3,0.6,S,S,S
325,Chemical manufacturing,Air (incl truck and air),636,0.4,16,-,19,-,"1,327",22.2,0.1,28.7,-,27.2,-,4.9
325,Chemical manufacturing,Pipeline (5),"29,697",17.5,"49,092",19.7,S,S,S,32,4.2,33.7,4.9,S,S,S
325,Chemical manufacturing,Multiple modes,"14,870",8.8,"19,967",8,"13,461",13.3,"1,062",11.4,0.9,17.7,1.6,17.8,2.1,6.1
325,Chemical manufacturing,"Parcel, U.S.P.S. or courier","1,911",1.1,42,-,32,-,"1,052",18.6,0.2,32.9,-,22.6,-,6.3
325,Chemical manufacturing,Truck and rail,"3,354",2,"4,539",1.8,"5,087",5,"1,252",15.5,0.2,13.3,0.3,16.8,0.8,5.9
325,Chemical manufacturing,Truck and water,785,0.5,432,0.2,S,S,"2,320",33.6,0.2,45.4,0.1,S,S,18.8
325,Chemical manufacturing,Rail and water,"3,723",2.2,"3,625",1.5,"1,873",1.9,889,24.8,0.6,21,0.3,27.9,0.6,21
325,Chemical manufacturing,Other multiple modes,"5,098",3,"11,329",4.6,"5,839",5.8,344,25,0.9,30.6,1.6,42.9,2.2,17.5
325,Chemical manufacturing,Other and unknown modes,"1,140",0.7,"1,839",0.7,635,0.6,308,31.2,0.2,25.3,0.2,47.8,0.3,25.1
4246,Chemical and allied products merchant wholesalers,All modes,"31,690",100,"64,533",100,"12,813",100,81,11.1,-,26.5,-,35.6,-,29.4
4246,Chemical and allied products merchant wholesalers,Single modes,"30,516",96.3,"63,688",98.7,"12,347",96.4,66,10.8,0.6,26.7,0.5,35.5,1.4,26.9
4246,Chemical and allied products merchant wholesalers,Truck (4),"29,359",92.6,"58,329",90.4,"9,131",71.3,64,11.2,1.1,27.8,4.1,27.4,7.2,25.7
4246,Chemical and allied products merchant wholesalers,For-hire truck,"8,990",28.4,"11,519",17.8,"4,568",35.6,305,13.7,2.8,20.4,4.1,30.9,6.7,12.9
4246,Chemical and allied products merchant wholesalers,Private truck,"20,368",64.3,"46,810",72.5,"4,563",35.6,40,13.1,3.3,34.3,6.2,46.4,6.9,17.2
4246,Chemical and allied products merchant wholesalers,Rail,"1,116",3.5,S,S,S,S,529,24.9,1.1,S,S,S,S,26.2
4246,Chemical and allied products merchant wholesalers,Water,S,S,S,S,S,S,114,S,S,S,S,S,S,19.8
4246,Chemical and allied products merchant wholesalers,Shallow draft,S,S,S,S,S,S,S,S,S,S,S,S,S,S
4246,Chemical and allied products merchant wholesalers,Deep draft,S,S,S,S,S,S,S,S,S,S,S,S,S,S
4246,Chemical and allied products merchant wholesalers,Air (incl truck and air),32,0.1,1,-,S,S,"1,208",42.9,-,38,-,S,S,21.1
4246,Chemical and allied products merchant wholesalers,Multiple modes,879,2.8,102,0.2,S,S,573,38,0.6,25.9,0.1,S,S,24.7
4246,Chemical and allied products merchant wholesalers,"Parcel, U.S.P.S. or courier",481,1.5,39,0.1,14,0.1,549,22.8,0.3,42.5,-,29.6,0.1,21
4246,Chemical and allied products merchant wholesalers,Truck and rail,24,0.1,28,-,S,S,"1,380",42.2,0.2,26.6,0.1,S,S,35.2
4246,Chemical and allied products merchant wholesalers,Truck and water,S,S,S,S,S,S,"3,281",S,S,S,S,S,S,35.7
4246,Chemical and allied products merchant wholesalers,Rail and water,S,S,S,S,S,S,S,S,S,S,S,S,S,S
4246,Chemical and allied products merchant wholesalers,Other and unknown modes,295,0.9,S,S,S,S,S,31,0.2,S,S,S,S,S
4247,Petroleum and petroleum products merchant wholesalers,All modes,"550,944",100,"803,894",100,"39,482",100,41,4.8,-,5.3,-,8.4,-,10.1
4247,Petroleum and petroleum products merchant wholesalers,Single modes,"541,489",98.3,"786,105",97.8,"36,194",91.7,38,4.7,0.4,5.1,0.6,7.8,2.7,7.2
4247,Petroleum and petroleum products merchant wholesalers,Truck (4),"508,114",92.2,"727,586",90.5,"33,081",83.8,36,4.6,1.4,4.6,1.8,6.1,3.7,3.8
4247,Petroleum and petroleum products merchant wholesalers,For-hire truck,"198,771",36.1,"291,098",36.2,"15,310",38.8,56,7,2.5,6.5,2.6,11.3,3.2,9.8
4247,Petroleum and petroleum products merchant wholesalers,Private truck,"309,343",56.1,"436,488",54.3,"17,771",45,30,7,2,7.4,2,8.6,3.9,4.4
4247,Petroleum and petroleum products merchant wholesalers,Rail,"1,393",0.3,"1,967",0.2,390,1,S,46.8,0.1,46,0.1,44.7,0.4,S
4247,Petroleum and petroleum products merchant wholesalers,Water,"14,020",2.5,"27,988",3.5,S,S,397,36.6,0.8,37,1,S,S,29.3
4247,Petroleum and petroleum products merchant wholesalers,Shallow draft,"13,011",2.4,"26,106",3.2,244,0.6,S,40.2,0.8,40.4,1.1,36.6,0.2,S
4247,Petroleum and petroleum products merchant wholesalers,Great Lakes,S,S,S,S,S,S,S,S,S,S,S,S,S,S
4247,Petroleum and petroleum products merchant wholesalers,Deep draft,S,S,S,S,S,S,904,S,S,S,S,S,S,21.1
4247,Petroleum and petroleum products merchant wholesalers,Air (incl truck and air),S,S,S,S,S,S,S,S,S,S,S,S,S,S
4247,Petroleum and petroleum products merchant wholesalers,Pipeline (5),"17,614",3.2,"28,256",3.5,S,S,S,24.7,0.9,25,0.9,S,S,S
4247,Petroleum and petroleum products merchant wholesalers,Multiple modes,"5,835",1.1,"13,007",1.6,"2,799",7.1,627,40.4,0.4,39.7,0.6,47,2.6,29.5
4247,Petroleum and petroleum products merchant wholesalers,"Parcel, U.S.P.S. or courier",S,S,S,S,S,S,868,S,S,S,S,S,S,29.6
4247,Petroleum and petroleum products merchant wholesalers,Truck and rail,S,S,S,S,S,S,751,S,S,S,S,S,S,36.4
4247,Petroleum and petroleum products merchant wholesalers,Truck and water,"1,172",0.2,"2,608",0.3,S,S,S,44,0.1,47.6,0.2,S,S,S
4247,Petroleum and petroleum products merchant wholesalers,Other multiple modes,"3,558",0.6,"8,918",1.1,353,0.9,39,37.3,0.8,28.5,1.1,29.4,1.2,4
4247,Petroleum and petroleum products merchant wholesalers,Other and unknown modes,"3,620",0.7,"4,782",0.6,488,1.2,S,12.4,0.1,13.9,0.1,25.7,0.3,S
45431,Fuel dealers,All modes,"37,928",100,"47,817",100,"1,761",100,22,3.6,-,4.5,-,32.7,-,8.2
45431,Fuel dealers,Single modes,"37,636",99.2,"47,450",99.2,"1,751",99.4,22,3.5,0.3,4.4,0.3,32.7,0.3,8.1
45431,Fuel dealers,Truck (4),"37,427",98.7,"47,184",98.7,"1,750",99.4,22,3.4,0.5,4.3,0.6,32.7,0.3,8.5
45431,Fuel dealers,For-hire truck,S,S,S,S,S,S,57,S,S,S,S,S,S,47.7
45431,Fuel dealers,Private truck,"35,650",94,"44,616",93.3,"1,085",61.6,22,3.5,2.9,4,3.1,12,11.9,8.9
45431,Fuel dealers,Rail,S,S,S,S,S,S,S,S,S,S,S,S,S,S
45431,Fuel dealers,Water,S,S,S,S,S,S,14,S,S,S,S,S,S,7.8
45431,Fuel dealers,Shallow draft,S,S,S,S,S,S,S,S,S,S,S,S,S,S
45431,Fuel dealers,Deep draft,S,S,S,S,S,S,S,S,S,S,S,S,S,S
45431,Fuel dealers,Air (incl truck and air),S,S,S,S,S,S,S,S,S,S,S,S,S,S
45431,Fuel dealers,Multiple modes,1,-,1,-,-,-,17,31.9,-,29.8,-,30,-,16.8
45431,Fuel dealers,"Parcel, U.S.P.S. or courier",1,-,1,-,-,-,17,41.7,-,40,-,37.3,-,14.5
45431,Fuel dealers,Truck and rail,S,S,S,S,S,S,S,S,S,S,S,S,S,S
45431,Fuel dealers,Other and unknown modes,291,0.8,366,0.8,10,0.6,12,40.6,0.3,44.3,0.3,37,0.3,27.5
551114,"Corporate, subsidiary, and regional managing offices",All modes,"44,389",100,"72,893",100,"17,764",100,158,8.4,-,9.7,-,30.6,-,49.6
551114,"Corporate, subsidiary, and regional managing offices",Single modes,"42,539",95.8,"68,572",94.1,"17,332",97.6,S,8.2,1.2,9.6,1.6,31.4,2.7,S
551114,"Corporate, subsidiary, and regional managing offices",Truck (4),"22,358",50.4,"32,066",44,"9,089",51.2,S,19.9,7.4,15.2,7.4,43.1,8.9,S
551114,"Corporate, subsidiary, and regional managing offices",For-hire truck,"15,012",33.8,"21,867",30,"8,365",47.1,348,30.2,7.2,25,8,45.2,8.9,32
551114,"Corporate, subsidiary, and regional managing offices",Private truck,"7,346",16.5,"10,198",14,724,4.1,S,23,4.4,22.2,4.1,28.3,3.5,S
551114,"Corporate, subsidiary, and regional managing offices",Rail,"1,267",2.9,S,S,S,S,705,30.9,1.3,S,S,S,S,19.2
551114,"Corporate, subsidiary, and regional managing offices",Water,"1,650",3.7,"2,703",3.7,S,S,702,40.5,2.5,39.7,2.2,S,S,26.2
551114,"Corporate, subsidiary, and regional managing offices",Shallow draft,"1,587",3.6,"2,582",3.5,S,S,"1,070",38.3,3.4,37.6,3,S,S,37
551114,"Corporate, subsidiary, and regional managing offices",Deep draft,S,S,S,S,25,0.1,342,S,S,S,S,47.4,0.7,43.2
551114,"Corporate, subsidiary, and regional managing offices",Air (incl truck and air),46,0.1,1,-,1,-,S,44.2,0.1,39.8,-,47.5,-,S
551114,"Corporate, subsidiary, and regional managing offices",Pipeline (5),"17,219",38.8,"25,959",35.6,S,S,S,17.7,6.8,18.3,6.5,S,S,S
551114,"Corporate, subsidiary, and regional managing offices",Multiple modes,"1,794",4,"4,288",5.9,422,2.4,"1,057",35.1,1.2,32.7,1.6,30.8,2.8,20.2
551114,"Corporate, subsidiary, and regional managing offices","Parcel, U.S.P.S. or courier",S,S,2,-,S,S,"1,208",S,S,49.1,-,S,S,13
551114,"Corporate, subsidiary, and regional managing offices",Truck and rail,95,0.2,S,S,S,S,S,47.6,0.6,S,S,S,S,S
551114,"Corporate, subsidiary, and regional managing offices",Truck and water,S,S,S,S,S,S,S,S,S,S,S,S,S,S
551114,"Corporate, subsidiary, and regional managing offices",Rail and water,S,S,S,S,S,S,S,S,S,S,S,S,S,S
551114,"Corporate, subsidiary, and regional managing offices",Other multiple modes,"1,071",2.4,"1,742",2.4,147,0.8,87,20.1,2.6,15.3,2.7,25,6,21.8
551114,"Corporate, subsidiary, and regional managing offices",Other and unknown modes,S,S,32,-,S,S,483,S,S,31.8,-,S,S,38.6
Other,All other NAICS codes,All modes,"92,073",100,"62,356",100,"22,497",100,155 ,6.3,-,14.5,-,17.8,-,19.2
Other,All other NAICS codes,Single modes,"84,317",91.6,"58,986",94.6,"20,474",91,87 ,6.8,1.8,15,1.4,19.1,2.6,19.3
Other,All other NAICS codes,Truck (4),"77,723",84.4,"41,367",66.3,"10,417",46.3,83 ,7,2.4,13.1,6,15.9,7,19.2
Other,All other NAICS codes,For-hire truck ,"32,552",35.4,"17,157",27.5,"8,426",37.5,373 ,12.6,5.1,14.4,3.7,15.4,6,35.2
Other,All other NAICS codes,Private truck,"45,171",49.1,"24,210",38.8,"1,991",8.9,34 ,14,4.7,17,5.2,20.4,1.4,8.2
Other,All other NAICS codes,Rail,"3,233",3.5,S,S,"7,908",35.2,642 ,29,0.9,S,S,48.4,7.6,17.8
Other,All other NAICS codes,Water,S,S,S,S,S,S,624 ,S,S,S,S,S,S,33.4
Other,All other NAICS codes,Air (incl truck and air),660,0.7,9,-,10,-,"1,176 ",20,0.2,26.4,-,34.6,-,7.2
Other,All other NAICS codes,Pipeline (5),"2,665",2.9,"4,758",7.6,S,S,S,37.8,2.2,26.3,5.9,S,S,S
Other,All other NAICS codes,Multiple modes,"6,732",7.3,"2,794",4.5,"1,981",8.8,787 ,24.3,1.6,29.1,1.3,30.9,2.7,8.6
Other,All other NAICS codes,"Parcel, U.S.P.S. or courier","5,172",5.6,151,0.2,101,0.5,786 ,30.9,1.6,23,0.1,47,0.3,8.7
Other,All other NAICS codes,Truck and rail,"1,276",1.4,"2,589",4.2,"1,663",7.4,614 ,25.1,0.4,30.7,1.2,36.1,2.7,27.4
Other,All other NAICS codes,Truck and water,S,S,33,0.1,103,0.5,"1,934 ",S,S,48.8,-,48.4,0.3,34.4
Other,All other NAICS codes,Rail and water,S,S,S,S,S,S,S,S,S,S,S,S,S,S
Other,All other NAICS codes,Other multiple modes,S,S,S,S,S,S,S,S,S,S,S,S,S,S
Other,All other NAICS codes,Other and unknown modes,"1,024",1.1,576,0.9,42,0.2,39 ,19.5,0.2,29.8,0.5,39.9,0.1,34.1
"KEY: S = Estimate does not meet publication standards because of high sampling variability or poor response quality. - = Zero or Less than half the unit shown; thus, it has been rounded to zero.",,,,,,,,,,,,,,,,
"(1) Based on 2002 North American Industry Classification System (NAICS).
(2) Ton-miles estimates are based on estimated distances traveled along a modeled transportation network. 
(3) Coefficient of Variation.
(4) ""Truck"" as a single mode includes any shipment that was made by private truck only, by for-hire truck only, or by a combination of private and for-hire truck.
(5) Estimates for pipeline exclude shipments of crude petroleum.",,,,,,,,,,,,,,,,
"NOTES: Rows are not shown if all cells for that particular row have no values. For example, specific NAICS by mode rows are not shown in this table because there are no data for those rows. Value-of-shipment estimates are reported in current prices. Estimated measures of sampling variability for each estimate known as coefficients of variation (CV) are also provided in these tables. More information on sampling error, confidentiality protection, nonsampling error, sample design, and definitions may be found at http://www.bts.gov/cfs.",,,,,,,,,,,,,,,,
"SOURCE: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics and U.S. Department of Commerce, U.S. Census Bureau, 2007 Economic Census: Transportation Commodity Flow Survey, December 2009.",,,,,,,,,,,,,,,,