Hazardous Materials (HazMat) Endorsement Awareness Flashcards

Which federal agency primarily regulates the transportation of hazardous materials on US highways?

Answer: PHMSA

The Pipeline and Hazardous Materials Safety Administration (PHMSA) sets the regulations for hazardous materials transportation, while FMCSA enforces them for motor carriers.

A shipper provides a shipping paper listing 'UN1203, Gasoline, 3, PG II.' What does 'PG II' indicate?

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.

When must a driver stop before crossing a railroad grade crossing while transporting HazMat?

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.

Which placard is required when transporting any quantity of a Division 2.3 (poison gas) material?

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.

A driver discovers a leak in a HazMat package en route. What is the FIRST action to take?

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.

What is the minimum distance a HazMat driver must park from any bridge, tunnel, or building when required to park temporarily?

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.

An 'X' in the RQ column of a shipping paper means:

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.