Indiana CDL HazMat Endorsement Test study materials
Indiana CDL HazMat Endorsement Test study resources

Indiana CDL HazMat Endorsement Test cheat sheet

Indiana CDL HazMat Endorsement Test · Keep the key ideas within reach.

Quick reference

Hazardous Materials Regulations and Definitions

  • HazMat is a material capable of posing an unreasonable risk to health, safety, and property when transported; 49 CFR Parts 100-185 govern it, and Indiana adopts the federal rules for intrastate movement.

  • Nine hazard classes: 1 Explosives, 2 Gases, 3 Flammable and Combustible Liquids, 4 Flammable Solids, 5 Oxidizers and Organic Peroxides, 6 Toxic and Infectious Substances, 7 Radioactive, 8 Corrosives, 9 Miscellaneous.

  • A placardable quantity is 1,001 lb (454 kg) or more aggregate gross weight of a single hazard class in one vehicle; 1.1/1.2/1.3 explosives and poison-inhalation-hazard materials require placards at any quantity.

  • Hazardous materials are assigned to one of three packing groups by degree of danger: I great danger, II medium danger, III minor danger; not all classes use packing groups.

  • Forbidden materials may not be offered or transported in commerce; the DOT Hazardous Materials Table (49 CFR 172.101) lists the proper shipping name, class, ID number, packing group, label codes, and special provisions for each entry.

  • A reportable quantity (RQ) is the amount of a hazardous substance released that triggers notification; RQ values appear in 49 CFR 172.101 Appendix A and on the shipping paper as the letters RQ.

  • A hazardous waste manifest accompanies hazardous waste; it is a shipping paper with additional EPA-required fields and is not the same as a standard HazMat shipping paper.

  • Elevated temperature material, marine pollutants, and hazardous substances each carry special shipping paper and marking requirements beyond their hazard class.

Quick reference

Communication Rules: Shipping Papers, Marking, Labeling, Placarding

  • Shipping paper order: the basic description must appear as proper shipping name, hazard class or division, UN/NA identification number, and packing group (for example, Gasoline, 3, UN1203, PG II).

  • The ID number may be placed before or after the proper shipping name, but it must not be separated from it by other information; the class and packing group may be placed on the same line as the shipping name.

  • Emergency response telephone number must appear on the shipping paper, be monitored at all times the material is in transit, and belong to a person or agency with knowledge of the material.

  • The number of packages and total quantity, including unit of measure, must be shown with the basic description; the total quantity is required before transport.

  • Placards are 250 mm square diamond-shaped; labels are 100 mm square; both display the hazard class number at the bottom point (except some class 7 and 9 designs).

  • A placard must be affixed to all four sides of a freight container, motor vehicle, or rail car when required; a DANGEROUS placard may be used for two or more classes when 1,001 lb or more of each is loaded.

  • Marking includes the proper shipping name and UN number on non-bulk packages and the orientation arrows on combination packages containing liquids; the UN packaging symbol shows the package is certified.

  • Shipping papers must be within reach of the driver while driving, kept in a pouch on the driver's door, or in clear view on the dashboard; they must be accessible in an emergency.

Quick reference

Loading, Unloading, and Segregation of Hazardous Materials

  • Never load hazardous materials in the same space as food, feed, or anything intended for human or animal consumption; keep them separated from foodstuffs entirely.

  • Cyanides and acids must never be loaded together; acid spills on cyanide generate deadly hydrogen cyanide gas.

  • Do not load Division 1.1, 1.2, or 1.3 explosives with any other hazardous material unless specifically authorized; check the segregation table in 49 CFR 177.848.

  • Poison inhalation hazard (PIH) materials must be loaded so that the driver can see the packages from the cab and reach them without entering the cargo area.

  • Secure packages against movement; load heavy items on the bottom, and never stack packages so that labels and markings are hidden from view.

  • Before loading, inspect packages for leaks, damage, or missing labels and refuse damaged packages; report damage to the shipper.

  • Keep the vehicle's cargo heater and engine off during loading and unloading of flammable liquids or gases unless the material is specifically approved for such conditions.

  • Cargo tanks must be loaded only with materials the tank is designed and marked for; check the specification plate and the material's compatibility with the tank lining.

Quick reference

Bulk Packages, Cargo Tanks, and Tank Vehicles

  • A bulk package has a capacity greater than 119 gallons (450 L) for liquids, more than 882 lb (400 kg) for solids, or more than 1,001 lb water capacity for gases.

  • Cargo tanks must be marked with the specification number, the material's proper shipping name, and the UN/NA number; markings must be visible on both sides and the rear.

  • A tank vehicle carrying a flammable liquid must have at least one fire extinguisher with a minimum 20 BC rating; a combination vehicle needs one 20 BC unit.

  • Tank vehicles transporting flammable liquids require protection against static electricity; bond and ground the tank to the receiving container before transfer.

  • Cargo tank piping, valves, and fittings must be inspected for leaks before each trip; a leaking tank or fitting must be repaired before loading.

  • The tank's maximum filling density limits how full a tank may be loaded, leaving outage (vapor space) for expansion; never fill beyond the marked fill limit.

  • A tank vehicle transporting Division 2.1 or 2.2 gases must have the tank marked and placarded; the driver must know the tank's design pressure and the liquid's vapor pressure.

  • Before unloading, set the parking brake, chock the wheels, and shut off the engine; attend the transfer at all times unless the equipment is designed for unattended operation.

Quick reference

Driving and Parking Rules for Hazardous Materials

  • Stop before railroad crossings, look both ways, listen, and proceed only when clear; this applies to all vehicles carrying placardable quantities of hazardous materials.

  • Do not park within 5 feet of a roadway or within 300 feet of an open flame, bridge, tunnel, or occupied building when carrying explosives or flammable materials.

  • When parking a placardable HazMat vehicle, keep it attended or parked in a secure area; if unattended, set the brake, remove the key, and leave the vehicle in a safe location.

  • Never smoke or carry a lit smoking material near a vehicle containing flammable or combustible materials, and keep the engine off during loading and unloading.

  • Use the shortest practical route and obey local route restrictions; some tunnels, bridges, and Indiana highways restrict HazMat vehicles, and the driver must follow posted signs.

  • Maintain a safe following distance; a placardable HazMat vehicle needs extra stopping distance, and the driver must reduce speed in adverse weather.

  • Never leave a placardable HazMat vehicle unattended on a public roadway unless it is parked in a designated area; when in doubt, keep it attended or secured.

  • If the vehicle is involved in a collision or breakdown, move it off the road if possible, warn traffic, and notify authorities before leaving the scene.

Quick reference

Emergencies: Incidents, Accidents, and Spills

  • Immediately after a HazMat release, notify the National Response Center at 1-800-424-8802 and local emergency responders; the shipping paper gives the emergency response phone number.

  • Use the Emergency Response Guidebook (ERG): find the guide number by the material's ID number or name, then follow the orange guide page for protective actions and evacuation distances.

  • If the material is on fire, isolate the area, keep upwind, and do not attempt to fight a fire involving explosives, compressed gases, or large flammable liquid pools.

  • For a spill, stop the leak if safe, contain the material with dikes or absorbents, and prevent it from entering drains, sewers, or waterways.

  • Do not eat, drink, or smoke while handling a spill; wear the protective clothing and equipment specified in the ERG and the shipping paper.

  • Report the incident to the carrier and to the shipper; federal rules require a written report for certain releases, and the driver must preserve the shipping paper and package labels.

  • Remove the vehicle from the scene only after authorities release it; if the vehicle is contaminated, it must be decontaminated before returning to service.

  • Keep a written record of the incident, including time, location, material, quantity released, and actions taken, for the carrier's report.

Quick reference

Security Requirements and Hazardous Materials Endorsement Process

  • The HazMat endorsement (H) requires a Transportation Security Administration security threat assessment, including fingerprinting and a background check, before the endorsement is issued.

  • The TSA security threat assessment must be renewed; the endorsement is valid for the length of the CDL but the threat assessment must be current, and a disqualifying offense can prevent issuance.

  • Drivers must complete the required HazMat training and carry proof of it; the training covers general awareness, function-specific, and safety/security awareness.

  • A security plan is required for carriers offering certain high-consequence hazardous materials; drivers must follow the plan's procedures for reporting suspicious activity and securing the vehicle.

  • Report suspicious persons, vehicles, or activity near a HazMat load to the carrier and to local law enforcement; never confront a suspicious person.

  • Keep shipping papers and vehicle keys secure; do not disclose the nature of the load to unauthorized persons.

  • A driver with a HazMat endorsement must notify the employer and the licensing agency of a disqualifying conviction or loss of the endorsement.

  • Indiana issues the H endorsement through the BMV after TSA clearance; the endorsement appears on the CDL and must be carried with the license.