Why must a driver hauling a placarded vehicle be especially cautious about tire fires, checking tires more frequently than usual?
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Correct answer to question 178 (Hazardous Materials): An overheated or burning tire near hazardous cargo could ignite the load or worsen an already dangerous situation
Why
A tire fire near a hazardous cargo could ignite the load or dramatically worsen the situation, so drivers of placarded vehicles are encouraged to check tires more frequently and address overheating signs promptly.
Updated: November 2026