Practice question

A material meets more than one hazard-class definition. What does 'hazard class' mean in the CDL glossary?

It is assigned to one hazard class under Part 173 criteria and the Section 172.101 table, even if it meets more than one definition
It is always unregulated
The driver may choose any class after loading
It must always be Class 9

Answer: A — It is assigned to one hazard class under Part 173 criteria and the Section 172.101 table, even if it meets more than one definition

The correct answer is shown above. Try the full quiz for additional practice.