Under what condition is a vehicle not considered a source of ignition?

A vehicle is not considered a source of ignition if it is completely shut off before entering the ignition source area because in this state, the fuel system is inactive, and there is no spark or heat generated by the engine or electrical systems that could ignite flammable substances. This condition minimizes the risk of an ignition source being present while the vehicle is in a potentially hazardous area, making it safer for personnel and equipment around.

Parking in a designated area, inspecting for leaks, or ensuring that a vehicle is running smoothly do not inherently eliminate the risk of ignition. A designated area may provide general safety standards, but it does not guarantee that the vehicle's systems are inactive. Similarly, even if a vehicle has been inspected for leaks, it could still lead to conditions that permit ignition if the vehicle's engine or electrical systems are operational. A running vehicle inherently presents the risk of ignition due to the ongoing operation of its fuel systems.