You can have a CDL (Commercial Driver's License) without a Hazardous Materials Endorsement, but you have not have the HazMat Endorsement without a CDL.
No, it is not legal to haul any quantity of hazardous material without a hazmat endorsement on your CDL license. You need the endorsement to legally transport hazardous materials as it requires additional training and certification to ensure the safety of yourself and others on the road.
If it's a quantity which requires hazmat placards to be displayed, then yes. You need whichever class of CDL corresponds with the vehicle you're operating, plus a hazardous materials endorsement.
What are they going to do? Physically come out there and force you to drive? If you feel that conditions are too dangerous to drive in, then don't drive in them. No load is worth your life or anyone else's.
An endorsement permitting the driver to transport hazardous materials.
Hazardous material ceases to be hazardous when it is destroyed, sufficiently diluted in nonhazardous material, it is chemically changed into a nonhazardous material or incorporated into an object that immobilizes it and renders it unable to be hazardous.
which hazardous material can enter the body
Yes, transportation of liquid nitrogen in quantities exceeding certain thresholds may require a commercial driver's license (CDL) with a hazardous materials (hazmat) endorsement, as it is considered a hazardous material due to its extremely low temperature and potential asphyxiation risks. Regulations vary by jurisdiction, so it is important to check local requirements.
a. a hazardous material is exposed to fire.
In the United States, a commercial driver's license (CDL) is typically required for transporting hazardous materials, including oil, in quantities over 119 gallons. However, if you are transporting less than that amount and it is not classified as hazardous, a CDL may not be necessary. It's essential to check state-specific regulations, as they may have their own requirements regarding the transport of oil and hazardous materials.
HME won't be seen on a CDL - the endorsement for hazmat on a CDL is H, or X if it's in conjunction with a tanker endorsement. HME is often used as a shortened form of "hazmat (or 'hazardous materials') endorsement".
Polystyrene is not a hazardous material (dangerous good) in transportation. However, in circumstances where a fire might be a problem, polystyrene, which can readily and rapidly burn, can be a very hazardous material.
The only way you'd need a CDL for it is if you were transporting hazardous materials with it. This holds true for all states.