Practice question
A Pennsylvania driver adds N to an existing CDL but will haul placarded gasoline. What else may be required?
- Hazardous materials authority, commonly H or X, plus hazmat-specific requirements
- Only N, because gasoline is liquid
- No CDL endorsement if the route is intrastate
- Only a passenger endorsement
Answer: A — Hazardous materials authority, commonly H or X, plus hazmat-specific requirements
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