Colorado CDL Hazmat flashcards
Colorado CDL Hazmat · Build recall with a focused review session.
32 cards. Read the term and the definition here. The deck at the top of this page is optional.
- Hazard class 3
- Flammable and combustible liquids. The placard and label show a flame symbol; gasoline is the classic example, UN1203, packing group II.
- Reportable quantity (RQ)
- The amount of a hazardous substance released that triggers reporting; listed in Appendix A to 49 CFR 172.101. A release at or above the RQ must be reported to the National Response Center.
- Packing group
- A grouping assigned in the 172.101 Table: PG I great danger, PG II moderate danger, PG III minor danger. It determines packaging strength and appears on the shipping paper.
- Shipping paper basic description
- Proper shipping name, hazard class, UN/NA number, and packing group, in that order. Example: Gasoline, 3, UN1203, PG II. Total quantity and package count are also required.
- 1,001-pound placard rule
- A vehicle carrying 1,001 lb (454 kg) or more aggregate gross weight of one hazard class must display that class placard on both sides and both ends.
- DANGEROUS placard use
- May replace specific placards when two or more hazard classes are loaded, but never for 1.1, 1.2, 1.3, 2.3, 6.1 PG I, or Class 7 materials.
- Shipping paper location
- While driving, keep it within arm's reach, in a pouch on the driver's door, or in clear view on the seat. Emergency response information must accompany it.
- Label versus placard
- A label is a 4-inch diamond applied to a package; a placard is a 10¾-inch diamond applied to the vehicle. Both use the same class colors and symbols.
- Smoking distance for flammables
- No smoking or lit smoking device within 25 feet of a vehicle containing Class 3, 4, or 5 materials, and during fueling or loading of flammables.
- Loading incompatible explosives
- Never load Division 1.1, 1.2, or 1.3 explosives with detonators or other incompatible cargo; check the segregation table before accepting the load.
- Damaged package refusal
- Do not accept a package that leaks, has a damaged closure, or lacks a required label. Refuse it and notify the shipper; a leaking package contaminates the load.
- Vehicle fire extinguisher rating
- At least 10 BC on a hazmat vehicle; at least 20 BC on a tank vehicle carrying flammable liquids. Keep it charged and accessible.
- Segregation table
- 49 CFR 177.848 lists class pairs that cannot be loaded together, such as Class 1 explosives with Class 5 oxidizers and Class 8 corrosives with Class 4 materials.
- Cyanide and acid separation
- Keep Class 6.1 cyanides away from Class 8 acids; mixing generates toxic gas. Keep food, feed, and animal products away from all toxic and corrosive materials.
- Load securement requirement
- Every package must be tied down, blocked, or braced so it cannot shift enough to affect vehicle stability or damage another package.
- Bulk package threshold
- More than 119 gallons of liquid, more than 882 lb of solid, or more than 1,000 lb of gas. Bulk packages must be marked with the proper shipping name and UN number.
- Cargo tank specifications
- MC-306/DOT-406 for flammable liquids, MC-331 for pressurized gases, MC-338 for refrigerated liquids. The tank specification must match the material loaded.
- Cargo tank loading checks
- Verify the tank is empty of incompatible residue, hatches and valves are closed, the tank is grounded, and bottom outlets and emergency shutoff are functional before moving.
- National Response Center
- Report a release, fatality, serious injury, or evacuation to 1-800-424-8802 as soon as practical. A written DOT Form 5800.1 follows within 30 days.
- ERG use at a spill
- Identify the 4-digit UN number, find the guide page, apply the initial isolation distance and protective-action distance, and follow the orange-page guidance.
- Spill immediate actions
- Stop the vehicle, set the parking brake, turn off the engine, keep people away, and stay upwind. Do not attempt cleanup of an unknown material.
- Placarded parking distance
- Park at least 5 feet from the roadway and 300 feet from a bridge, tunnel, or occupied building unless the shipper authorizes otherwise.
- Railroad crossing rule
- A placarded hazmat vehicle must stop at every railroad crossing, look both ways, and listen - not only at crossings marked with a stop sign.
- Tunnel restriction
- Do not drive a placarded hazmat load through a tunnel posted for hazardous materials; route around it and follow designated hazmat routes.
- Warning device placement
- Place triangles at 10, 100, and 200 feet behind a stopped vehicle on a highway. Use flares only when no flammable vapors are present.
- Hazmat endorsement requirement
- A CDL hazmat (H) endorsement requires a TSA security threat assessment, a knowledge test, and a clean driving record; it renews with the license.
- Hazmat training cycle
- General awareness, function-specific, safety, and security awareness training, recurrent at least every 3 years, with records kept for each employee.
- Security awareness duty
- Recognize suspicious behavior, secure the vehicle, avoid discussing cargo or routes with strangers, and report threats to the employer and law enforcement.
- Shipping paper retention
- The shipper keeps shipping papers 2 years (3 years for hazardous waste); the carrier keeps them 1 year after delivery. Incident reports are kept 3 years.
- Hazardous waste manifest
- EPA Form 8700-22, signed by the generator, transporter, and designated facility. The driver signs and keeps a copy for the required retention period.
- Forbidden material rule
- Never transport a forbidden material or a package that leaks, is damaged, or is improperly marked. Refuse the shipment and notify the shipper.
- UN number display
- When a vehicle is placarded, the 4-digit UN identification number must appear on the placard, an orange panel, or the vehicle body.