HazMat Hazardous Materials (HazMat) Endorsement Awareness 2 — Questions and Answers
Question 1: Which federal agency primarily regulates the transportation of hazardous materials on US highways?
- EPA
- OSHA
- PHMSA (Correct answer)
- FMCSA
Correct answer: PHMSA
The Pipeline and Hazardous Materials Safety Administration (PHMSA) sets the regulations for hazardous materials transportation, while FMCSA enforces them for motor carriers.
Question 2: A shipper provides a shipping paper listing 'UN1203, Gasoline, 3, PG II.' What does 'PG II' indicate?
- The material is in Package Group 2 containers
- The packing group represents a medium degree of danger (Correct answer)
- The product requires two separate placards
- The shipment needs a second driver
Correct answer: The packing group represents a medium degree of danger
Packing Group II (PG II) indicates a medium degree of danger, with PG I being high danger and PG III being minor danger.
Question 3: When must a driver stop before crossing a railroad grade crossing while transporting HazMat?
- Only if signal lights are active
- Always, regardless of signals (Correct answer)
- Only when cargo exceeds 10,000 lbs
- Only at night or in poor visibility
Correct answer: Always, regardless of signals
HazMat-laden vehicles must always stop at railroad grade crossings between 15 and 50 feet from the nearest rail, regardless of signals or traffic.
Question 4: Which placard is required when transporting any quantity of a Division 2.3 (poison gas) material?
- Flammable Gas
- Toxic Gas
- Poison Inhalation Hazard (Correct answer)
- Non-Flammable Gas
Correct answer: Poison Inhalation Hazard
The 'Poison Inhalation Hazard' placard is required for any quantity of Division 2.3 materials because of the extreme inhalation risk they pose.
Question 5: A driver discovers a leak in a HazMat package en route. What is the FIRST action to take?
- Continue to the destination quickly to minimize delay
- Keep driving and notify the shipper by phone
- Park safely, stay upwind, and call for help (Correct answer)
- Cover the leak with a tarp and continue
Correct answer: Park safely, stay upwind, and call for help
The driver must stop safely, keep away from and upwind of the leaking material, and immediately call emergency services and the carrier.
Question 6: What is the minimum distance a HazMat driver must park from any bridge, tunnel, or building when required to park temporarily?
- 100 feet
- 200 feet
- 300 feet (Correct answer)
- 500 feet
Correct answer: 300 feet
Federal regulations require HazMat vehicles to park at least 300 feet from bridges, tunnels, buildings, or open fires when a temporary stop is necessary.
Question 7: An 'X' in the RQ column of a shipping paper means:
- The shipment is exempt from placarding
- A Reportable Quantity of the material is present (Correct answer)
- Extra inspection is required at state borders
- The cargo is exclusively regulated by railroad rules
Correct answer: A Reportable Quantity of the material is present
RQ stands for Reportable Quantity, meaning a spill or release of that material must be reported to the National Response Center.
HazMat Hazardous Materials (HazMat) Endorsement Awareness 2
Which federal agency primarily regulates the transportation of hazardous materials on US highways?