CDL HazMat Endorsement flashcards

31 cards. Read the term and the definition here. The deck at the top of this page is optional.

HazMat Table Column 1 symbol '+'

Means the proper shipping name listed is fixed and may not be changed; the entry must be used exactly as shown in Column 2 when shipping that material.

HazMat Table Column 3

Shows the hazard class or division of the material. The class determines the label, placard, and packaging requirements that apply to the shipment.

Packing Group I meaning

PG I indicates great danger. It is assigned to materials that present the highest degree of hazard within their class and generally requires stronger packaging than PG II or III.

n.o.s. entry meaning

Not otherwise specified. Used for materials that do not have a specific listed name; the entry must match the hazard class and packing group, and a technical name is shown in parentheses.

Hazardous substance RQ

A material listed in Appendix A to 172.101 shipped at or above its reportable quantity per package. The letters RQ must appear on the shipping paper for that shipment.

Division 6.2 definition

Infectious substances: materials known or reasonably expected to contain a pathogen that can cause disease in humans or animals. Requires special packaging and handling procedures.

Shipping paper basic description

The proper shipping name, hazard class or division, UN or NA identification number, and packing group, in that order, e.g., Acetone, 3, UN1090, PG II.

Emergency response telephone number

A number on the shipping paper that is monitored at all times the material is in transportation and is reachable by a toll or collect call for emergency information.

Shipping paper retention by carrier

The carrier must keep hazardous materials shipping papers for 90 days after delivery, except hazardous waste papers, which must be kept for 3 years.

Placard size requirement

A placard must be 250 mm (9.84 in) on each side, diamond shaped, and displayed on all four sides of the vehicle carrying the material.

Table 2 placarding threshold

Placards are required for Table 2 materials only when the aggregate gross weight of all Table 2 materials in the vehicle is 1,001 lb (454 kg) or more.

DANGER placard use

May replace separate placards when the vehicle carries two or more Table 2 categories in placardable quantities. Not allowed for Table 1, Class 1, Class 7, or Division 6.1 PG I.

Label size and placement

Labels are 4 in x 4 in (100 mm), applied near the proper shipping name on the package, and include the primary hazard label plus any required subsidiary labels.

Bulk package ID number marking

Bulk packages must display the UN or NA identification number on both sides and each end, in addition to the proper shipping name marking.

Loading food with hazmat

Hazardous materials may not be loaded in the same space with food, feed, or anything intended for human or animal consumption unless separated and packaged to prevent contamination.

Cyanides and acids

Cyanides and acids must never be loaded together. Mixing them can release deadly hydrogen cyanide gas, so they must be kept in separate vehicles or compartments.

Explosive compatibility groups

Class 1 materials are segregated by compatibility group. Detonators may not be loaded with other explosives unless the segregation table in 177.848(d) specifically permits it.

Segregation table 'X'

In the 177.848(d) segregation table, an X means the two hazard classes may not be loaded together in the same vehicle or freight container.

Tiedown aggregate strength rule

The aggregate working load limit of all tiedowns must be at least 50% of the total weight of the articles being secured on the vehicle.

Tiedown placement rule

The front-most tiedown must be within 4 ft of the front of the load, and the rear tiedown must be within 4 ft of the rear of the load.

Drum loading orientation

Drums containing liquid must be loaded with the bung opening up, either upright or on their side with the bung up, so that no liquid can leak from the opening.

Engine shutoff during loading

The engine must be shut off during loading and unloading of Class 3, Class 4, Class 5, and Division 2.1 materials, unless the vehicle's equipment requires it to run.

Parking near traveled portion

A vehicle carrying hazardous materials must not be parked within 5 feet of the traveled portion of a public street or highway, and must be attended at all times.

Attendance distance rule

A driver is considered in attendance if within 100 feet of the vehicle and it is in view, or if the vehicle is parked on the property of a shipper, consignee, or secure facility.

Parking near open fire

Never park a hazardous materials vehicle within 300 feet of an open fire. Also avoid parking near bridges, tunnels, or occupied buildings longer than necessary.

Smoking distance rule

Smoking and open flames are prohibited within 25 feet of a vehicle containing Class 3, Class 4, Class 5, or Division 2.1 materials.

Railroad crossing stop rule

Hazardous materials vehicles must stop at all railroad crossings before crossing, unless the crossing is exempt, then look and listen before proceeding.

Emergency Response Guidebook use

Identify the material by its UN number, find the guide page, and follow the isolation distances and protective actions listed for that guide number.

CHEMTREC purpose

A 24-hour emergency response information service that can be called for chemical hazards, spill guidance, and medical advice during a hazardous materials incident.

Security plan requirement

Required for carriers of certain high-hazard materials, such as Division 1.1, 1.2, 1.3, or 2.1 in bulk or Class 7 in certain quantities. Covers personnel, access, and en route security.

Suspicious activity reporting

Report tampering, unusual surveillance of the vehicle, or attempts to obtain hazmat information to the carrier and to local authorities; keep the vehicle locked and verify identities.