'X' Indicates that explosives of different compatibility groups may not be carried on the same transport vehicle.
'1' An explosive from compatibility group L shall only be carried on the same transport vehicle with an identical explosive.
'2' Any combination of explosives from compatibility groups C, D, or E is assigned to compatibility group E.
'3' Any combination of explosives from compatibility groups C, D, or E with those in compatibility group N is assigned to compatibility group D.
'4' Refer to 49CFR 177.835(g) when transporting detonators.
'5' Division 1.4S fireworks may not be loaded on the same transport vehicle with Division 1.1 or 1.2 materials.
A blank space in the table indicates that no restrictions apply.
Except as provided in [the following paragraph], explosives of the same compatibility group but of different divisions may be transported together provided that the whole shipment is transported as though its entire contents were of the lower numerical division (i.e., Division 1.1 being lower than 1.2). For example, a mixed shipment of Division 1.2 materials and Division 1.4 materials, both of compatibility group D, must be transported as Division 1.2 materials
When Division 1.5 materials, compatibility group D, are transported in the same freight container as Division 1.2 materials, compatibility group D, the shipment must be transported as Division 1.1 materials, compatibility group D.
Where the classification system in effect prior to January 1, 1991, is referenced in State or local laws, ordinances or regulations not pertaining to the transportation of hazardous materials, the following table may be used to compare old and new hazard class names:
|Class name prior to Jan 1, 1991|
|Division 1.1||Class A explosives|
|Division 1.2||Class A or Class B explosives|
|Division 1.3||Class B explosives|
|Division 1.4||Class C explosives|
|Division 1.5||Blasting Agents|
|Division 1.6||No applicable hazard class|
Unless otherwise provided in [49CFR 173], the following explosives shall not be offered for transportation or transported:
Last updated: Feb 2007
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Kenneth Barbalace. USDOT HazMat Placards - Class 1 Explosives. EnvironmentalChemistry.com. 1995 - 2021. Accessed on-line: 6/19/2021