What must drivers transporting toxic materials have in their vehicles?

Drivers transporting toxic materials are required to have specific equipment and documentation to ensure safety and compliance with regulations. The correct requirement is a gas mask rated for protection against chlorine gas if that particular toxic material is being transported. Chlorine is a highly dangerous chemical that can pose serious health risks in case of an accident or leak. Having a gas mask designed specifically for chlorine gas ensures that the driver has the necessary protection in the event of exposure.

For drivers dealing with hazardous materials, it is crucial to be equipped for emergencies, particularly those involving toxic substances. While a hazardous materials shipping guide is important for reference and compliance, it does not directly provide personal protection. Similarly, having an extra set of tires can be practical for regular roadside emergencies, but it is not relevant to the specific threats posed by toxic materials. A general gas mask, while useful, may not offer the required level of protection against specific hazardous substances like chlorine gas. Therefore, possessing a gas mask rated for such materials is a critical safety measure for drivers transporting toxic substances.