What is a key requirement for vehicles containing Division 1.1, 1.2, or 1.3 (explosive) materials?

For vehicles transporting Division 1.1, 1.2, or 1.3 materials, which are classified as explosive substances, a critical safety requirement is that these vehicles must be attended at all times. This requirement is in place to ensure that there is always a responsible individual present who can monitor the vehicle and respond rapidly to any incidents that may occur, such as unauthorized access, on-site emergencies, or vehicular malfunctions.

Having an attendant ensures that there is someone who can take immediate action to mitigate risks, communicate with emergency services if necessary, and maintain security of the materials being transported. This is imperative given the potential hazards associated with explosive materials, which mandate heightened safety protocols compared to other types of hazardous materials.

Other measures, such as parking in designated areas or displaying warning flags, may indeed be important for overall safety and compliance, but they do not specifically address the need for constant supervision of the vehicle. Similarly, while GPS tracking can enhance monitoring, it does not replace the need for an attendant to respond to any immediate situations that may arise.