The United Nations Recommendations on the Transport of Dangerous Goods are contained in the UN Model Regulations, also known as the ‘Orange Book’. The Model Regulations are prepared by the Committee of Experts on the Transport of Dangerous Goods of the UN Economic and Social Council (ECOSOC). They cover the transportation of dangerous goods, also known as hazardous materials, by all modes of transport. Additionally, there are country-specific requirements and exemptions that must be taken into consideration when products are transported or shipped nationally or across international borders.

  • Canada’s transportation by road/rail is known as the Transportation of Dangerous Goods (TDG).
  • The United States’ transportation of hazardous materials is regulated by the U.S. Department of Transport (DOT).
transportation of dangerous goods

The transportation of dangerous goods is divided into 9 classes, each with their own unique criteria. This criteria can be subdivided into divisions, dependent on the class, and Packing Group Assignments or Compatibility Groups may also exist for some classes.

For example, some of the most common dangerous goods, such as Sodium Hydroxide, are assigned a unique UN number, whereas some of the less commonly transported chemicals can use generic codes such as UN3265; CORROSIVE LIQUID, ACIDIC, ORGANIC, N.O.S.


Transportation of Dangerous Goods is a critical component of every company’s product safety plan. The Dell Tech Product Safety Team has been trained, tested and received certification in accordance with the requirements for TDG, DOT, IATA and IMDG. Our team is vigilant in keeping their transportation certifications up to date in order to:

  • Provide guidance on the proper shipping description (ISHP) of your product in accordance with TDG, DOT, IATA, and IMDG
  • Perform Hazard Classification Testing for Class 8 and Class 3 materials
  • Advise on the appropriate UN number and Packing Group assignment
  • Prepare mandated TDG Proof of Classification documentation
  • Provide guidance on exemptions such as Limited Quantity and Excepted Quantities
  • Provide guidance on Special Provision Requirements
  • Provide guidance on placarding requirements, selection of packaging, and safety marks
  • Provide guidance on dangerous goods shipping paper documentation
  • Provide on-site TDG training for your staff
  • Provide Emergency Response Assistance Plan (ERAP) assistance
  • Provide assistance with CANUTEC registration
  • Support your business with our full suite of safety data sheet services


Client Services Coordinator

Call: 519.858.5021