'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
While excerpts from the Code of Federal Regulations Title 49 (49CFR) and the "Emergency Response Guidebook" are in the public domain, the image files on these pages, the design of these pages as well as all other materials on this site and graphics files are copyrighted by J.K. Barbalace, inc. Copyrighted material on this site, including graphics files, MAY NOT BE REPRODUCED in any form without the express permission.
WARNING: These pages are for general reference and educational purposes only and MUST NOT be relied upon as a sole source to determine regulatory compliance or where matters of life and health are concerned. This site and the author do not warrant or guarantee the accuracy or the sufficiency of the information provided and do not assume any responsibility for its use.
To ensure regulatory compliance when transporting hazardous materials or dangerous goods, one must receive proper training and certification from a qualified instructor and refer to the current year's Code of Federal Regulations Title 49 (49CFR) or your country's shipping regulations. In matters regarding workplace safety, refer to current OSHA regulations (29CFR) and NIOSH guidelines or your own country's health and safety regulations. No one should ever enter into a hazardous environment without proper training from qualified instructors.
If you need to cite this page, you can copy this text:
Kenneth Barbalace. USDOT HazMat Placards - Class 1 Explosives. EnvironmentalChemistry.com. 1995 - 2023. Accessed on-line: 6/7/2023
If you would like to link to this page from your website, blog, etc., copy and paste this link code (in red) and modify it to suit your needs:
<a href="https://EnvironmentalChemistry.com/yogi/hazmat/placards/class1-pg2.html">echo USDOT HazMat Placards: Class 1 Explosives (EnvironmentalChemistry.com)</a>- Hazardous materials placards are required when shipping hazardous materials in the United States, Canada and Mexico. This page provide US DOT definitions for Class 1 Explosives.
NOTICE: While linking to articles is encouraged, OUR ARTICLES MAY NOT BE COPIED TO OR REPUBLISHED ON ANOTHER WEBSITE UNDER ANY CIRCUMSTANCES.
PLEASE, if you like an article we published simply link to it on our website do not republish it.