Which of the following divisions includes materials that must never be parked within 5 feet of the road?

The correct choice relates to Division 1.2, which encompasses materials that present a significant risk when involved in an incident, particularly those that can create a fire or explosion hazard. Materials classified under this division include explosives that have a projection hazard of some kind. The regulation requiring that these materials must never be parked within 5 feet of the road stems from the necessity to minimize risk to both the driver and the public. This distance helps ensure that in the event of a mishap, such as an unintentional release, explosion, or fire, the impact on nearby road users is mitigated.

The other divisions, while they have specific guidelines due to their characteristics, do not impose the same strict parking distance from roadways linked to public safety and potential explosive risks that Division 1.2 does. Hence, understanding the classification and specific regulations associated with each division is crucial for ensuring proper handling and minimizing dangers while transporting hazardous materials.