HAZMAT Table 7c ,,,,,,
"Hazardous Material Shipment Characteristics by Hazard Class Division and Mode of Transportation: Percent of Total for 2002 and 1997
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"[Estimates are based on data from the 2002 and 1997 Commodity Flow Surveys. Because of rounding, estimates may not be additive]
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Hazard Class Division and Mode of Transportation,Value (percent),,Tons (percent),, Ton–miles (percent) ,
,2002,1997,2002,1997,2002,1997
"Division 1.1, Explosives with a mass explosion hazard",,,,,,
All modes,100.0,100.0,S,S,S,S
Single modes,97.5,99.6,S,S,S,S
Truck (1),97.5,69.9,S,45.6,S,S
For–hire truck ,71.7,46.4,S,15.0,S,7.2
Private truck,S,23.5,S,S,S,S
Rail,—,S,—,S,—,S
Water,—,—,—,—,—,—
Air (includes truck and air),—,S,—,S,—,S
Pipeline (2),—,—,—,—,S,S
Multiple modes,S,S,S,S,S,S
"Parcel, U.S.P.S. or courier",S,S,S,S,S,S
Other multiple modes,—,—,—,—,—,—
Other and unknown modes,S,S,S,S,S,S
"Division 1.2, Explosives with a projection hazard",,,,,,
All modes,S,S,S,100.0,S,100.0
Single modes,S,S,S,99.9,S,99.8
Truck (1),S,S,S,99.5,S,99.4
For–hire truck ,S,S,S,98.1,S,99.4
Private truck,—,S,—,S,—,S
Rail,—,—,—,—,—,—
Water,—,—,—,—,—,—
Air (includes truck and air),—,S,—,S,—,S
Pipeline (2),—,—,—,—,S,S
Multiple modes,—,—,—,—,—,—
"Parcel, U.S.P.S. or courier",—,—,—,—,—,—
Other multiple modes,—,—,—,—,—,—
Other and unknown modes,—,S,—,S,—,S
"Division 1.3, Explosives with predominantly a fire hazard",,,,,,
All modes,S,100.0,100.0,100.0,100.0,100.0
Single modes,S,91.5,100.0,76.1,100.0,83.0
Truck (1),S,91.1,S,76.1,89.5,82.9
For–hire truck ,S,87.4,S,66.7,S,81.0
Private truck,S,3.7,S,S,S,S
Rail,S,—,S,—,S,—
Water,—,—,—,—,—,—
Air (includes truck and air),S,S,S,S,S,S
Pipeline (2),—,—,—,—,S,S
Multiple modes,—,S,—,S,—,S
"Parcel, U.S.P.S. or courier",—,S,—,S,—,S
Other multiple modes,—,—,—,—,—,—
Other and unknown modes,—,S,—,S,—,S
"Division 1.4, Explosives with no significant blast hazard",,,,,,
All modes,100.0,100.0,100.0,100.0,100.0,100.0
Single modes,97.4,81.7,98.4,93.4,97.5,92.3
Truck (1),96.0,65.4,98.3,84.8,97.1,76.7
For–hire truck ,87.6,49.7,94.6,62.3,95.4,67.0
Private truck,S,15.5,3.7,22.5,S,9.6
Rail,S,S,S,S,S,S
Water,—,—,—,—,—,—
Air (includes truck and air),S,6.9,—,0.3,S,0.4
Pipeline (2),—,—,—,—,S,S
Multiple modes,2.6,16.3,S,5.3,S,6.7
"Parcel, U.S.P.S. or courier",2.6,16.2,S,5.2,S,6.4
Other multiple modes,—,S,—,S,—,S
Other and unknown modes,S,2.0,S,1.3,S,S
"Division 1.5, Very insensitive explosives, blasting agent",,,,,,
All modes,100.0,100.0,100.0,100.0,100.0,100.0
Single modes,99.6,99.7,99.9,99.4,100.0,99.4
Truck (1),94.1,99.7,91.8,99.4,69.0,99.4
For–hire truck ,15.2,7.7,22.2,9.3,36.8,20.1
Private truck,78.6,92.0,S,90.1,32.1,S
Rail,5.1,—,8.1,—,31.0,—
Water,—,—,—,—,—,—
Air (includes truck and air),S,—,S,—,S,—
Pipeline (2),—,—,—,—,S,S
Multiple modes,S,S,S,S,S,S
"Parcel, U.S.P.S. or courier",S,—,S,—,S,—
Other multiple modes,—,S,—,S,—,S
Other and unknown modes,S,S,S,S,S,S
"Division 2.1, Flammable gases",,,,,,
All modes,100.0,100.0,100.0,100.0,100.0,100.0
Single modes,99.2,95.6,99.4,97.9,98.8,98.1
Truck (1),42.5,40.3,36.0,33.2,24.0,23.5
For–hire truck ,15.6,13.7,15.2,16.1,16.5,15.7
Private truck,26.9,26.2,20.8,16.7,7.4,7.7
Rail,19.0,10.3,18.6,10.6,59.2,48.6
Water,3.8,3.8,5.1,5.2,5.7,9.8
Air (includes truck and air),S,S,S,S,S,S
Pipeline (2),33.7,41.2,39.8,48.9,S,S
Multiple modes,0.3,0.8,0.4,0.6,1.2,0.9
"Parcel, U.S.P.S. or courier",S,—,S,—,S,—
Other multiple modes,0.2,0.7,0.4,0.6,1.2,0.9
Other and unknown modes,S,3.7,0.2,1.5,—,S
"Division 2.2, Nonflammable, nontoxic compressed gases",,,,,,
All modes,100.0,100.0,100.0,100.0,100.0,100.0
Single modes,97.2,94.9,99.7,96.3,99.0,97.3
Truck (1),92.9,84.2,60.7,82.7,72.6,61.6
For–hire truck ,49.0,35.5,6.9,8.6,23.7,15.6
Private truck,43.8,48.5,53.5,73.9,46.8,45.2
Rail,0.8,2.0,0.6,1.3,S,5.2
Water,S,S,S,S,S,S
Air (includes truck and air),0.7,3.8,S,—,S,—
Pipeline (2),S,3.5,S,11.9,S,S
Multiple modes,2.0,2.1,0.1,S,S,0.4
"Parcel, U.S.P.S. or courier",1.7,2.0,S,S,—,S
Other multiple modes,0.3,0.2,S,S,S,S
Other and unknown modes,0.8,2.9,0.2,S,S,S
"Division 2.3, Gases toxic by inhalation",,,,,,
All modes,100.0,100.0,100.0,100.0,100.0,100.0
Single modes,98.5,96.3,98.7,93.0,99.5,99.2
Truck (1),70.6,40.3,51.2,33.7,27.5,14.1
For–hire truck ,34.0,21.0,25.2,19.3,16.1,S
Private truck,36.6,19.0,25.9,14.0,S,2.9
Rail,16.8,46.7,24.8,40.0,52.2,71.5
Water,S,3.8,S,9.7,S,9.2
Air (includes truck and air),S,S,S,S,S,S
Pipeline (2),9.0,5.4,19.1,9.6,S,S
Multiple modes,S,S,S,S,S,S
"Parcel, U.S.P.S. or courier",S,S,S,—,—,S
Other multiple modes,S,S,S,S,S,S
Other and unknown modes,1.2,3.6,S,S,0.5,S
"Division 4.1, Flammable solids",,,,,,
All modes,100.0,100.0,100.0,100.0,100.0,100.0
Single modes,86.3,93.2,99.7,99.0,99.5,98.7
Truck (1),73.4,78.7,54.8,36.7,16.4,5.8
For–hire truck ,9.9,48.5,37.4,28.8,12.7,4.9
Private truck,63.4,29.7,17.5,5.9,3.7,0.8
Rail,S,11.6,30.3,58.2,67.8,92.5
Water,0.5,S,13.7,S,S,S
Air (includes truck and air),S,S,S,S,S,S
Pipeline (2),S,S,S,3.8,S,S
Multiple modes,S,S,S,S,S,S
"Parcel, U.S.P.S. or courier",1.3,S,—,—,—,—
Other multiple modes,S,S,S,S,S,S
Other and unknown modes,S,S,S,S,S,S
"Division 4.2, Spontaneously combustible materials",,,,,,
All modes,100.0,100.0,100.0,100.0,100.0,100.0
Single modes,94.7,98.9,98.9,99.3,97.3,99.4
Truck (1),84.0,54.3,66.5,58.6,S,21.3
For–hire truck ,S,36.5,59.4,40.3,S,16.9
Private truck,25.6,17.8,7.0,18.3,S,4.4
Rail,10.5,44.5,S,40.8,47.5,78.1
Water,—,—,—,—,—,—
Air (includes truck and air),S,S,S,—,S,—
Pipeline (2),—,—,—,—,S,S
Multiple modes,5.2,S,0.7,S,S,S
"Parcel, U.S.P.S. or courier",5.2,S,0.6,S,S,S
Other multiple modes,S,S,S,S,S,S
Other and unknown modes,S,S,S,S,S,S
"Division 4.3, Dangerous when wet materials",,,,,,
All modes,S,100.0,100.0,S,S,100.0
Single modes,S,93.7,95.4,S,S,97.6
Truck (1),S,81.6,90.0,S,S,55.8
For–hire truck ,S,58.5,S,14.0,S,38.7
Private truck,11.3,22.9,35.3,S,S,S
Rail,S,11.8,S,4.9,S,41.8
Water,—,S,—,S,—,S
Air (includes truck and air),S,S,S,S,S,S
Pipeline (2),—,—,—,—,S,S
Multiple modes,3.8,S,S,S,S,S
"Parcel, U.S.P.S. or courier",S,S,S,S,S,S
Other multiple modes,S,S,S,S,S,S
Other and unknown modes,S,S,S,S,S,S
"Division 5.1, Oxidizers",,,,,,
All modes,100.0,100.0,100.0,100.0,100.0,100.0
Single modes,97.1,97.3,96.9,97.7,94.5,98.2
Truck (1),81.1,70.4,76.2,62.9,60.5,34.3
For–hire truck ,36.1,42.7,50.1,31.7,S,25.5
Private truck,44.8,27.4,25.7,31.1,7.3,8.7
Rail,16.0,26.9,20.6,34.8,34.0,63.9
Water,—,S,—,S,—,S
Air (includes truck and air),S,S,—,—,S,S
Pipeline (2),—,—,—,—,S,S
Multiple modes,1.8,0.8,S,S,S,S
"Parcel, U.S.P.S. or courier",S,S,S,S,S,—
Other multiple modes,1.6,S,S,S,S,S
Other and unknown modes,S,1.9,S,S,S,S
"Division 5.2, Organic peroxides",,,,,,
All modes,100.0,100.0,S,100.0,S,100.0
Single modes,99.5,97.5,S,97.3,S,95.5
Truck (1),S,97.5,S,97.3,S,95.5,,,,,,,
For–hire truck ,S,58.8,S,61.9,S,61.9,,,,,,,
Private truck,S,35.0,1.5,28.8,0.4,S,,,,,,,
Rail,S,—,S,—,S,—,,,,,,,
Water,—,—,—,—,—,—,,,,,,,
Air (includes truck and air),S,S,S,S,S,S,,,,,,,
Pipeline (2),—,—,—,—,S,S,,,,,,,
Multiple modes,S,S,S,S,S,S,,,,,,,
"Parcel, U.S.P.S. or courier",S,S,S,S,S,S,,,,,,,
Other multiple modes,—,S,—,S,—,S,,,,,,,
Other and unknown modes,S,S,S,S,S,S,,,,,,,
"
KEY: 
— Represents and estimate equal to zero or less than 1 unit of measure.  
S Estimate does not meet publication standards because of highly sampling variability or poor response quality.   
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(1) ""Truck"" as a single mode includes shipments that were made by only private truck, only for–hire truck, or a combination of private and for–hire truck. 
(2) Estimates for pipeline exclude shipments of crude petroleum.               
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SOURCE: Bureau of Transportation Statistics (USDOT) and U.S. Census Bureau, 2002 Commodity Flow Survey, Hazmat Data, December 2004.",,,,,,,,,,,,,