Final answer:
A special document indicating the authorized driver's name and owner's signature is required for transporting Class 7 hazardous materials, typically related to radioactive substances.
Step-by-step explanation:
For the transportation of certain hazardous materials, specific documentation must be carried in the vehicle as per regulation standards. In the case where a document indicating the name of the authorized driver and signed by the owner is required, this is typically associated with Class 7 hazardous materials. Class 1 concerns explosives while Class 3 relates to flammable liquids and Class 9 to miscellaneous dangerous goods. However, the requirement for the document indicating authorized driver details commonly pertains to radioactive materials, which fall under Class 7 hazardous materials. It is crucial for drivers transporting hazardous materials to possess the correct documentation to ensure safety and comply with legal and regulatory requirements