CDL Practice Tests For Hazardous Materials Page 4

Placards —

Placards are used to warn others of hazardous materials. Placards are signs put on the outside of a vehicle that identify the hazard class of the cargo. A placarded vehicle must have at least four identical placards. They are put on the front, rear and both sides of the vehicle (see Figure 9-3 below).

Placards must be readable from all four directions. They are 10 3/4-inches square, square-on-point, in a diamond shape. Cargo tanks and other bulk packaging also display the ID number of their contents on placards, or orange panels or white square-on-point displays that are the same size as placards, and placed near the placards.

Placards —

Placards are used to warn others of hazardous materials. Placards are signs put on the outside of a vehicle that identify the hazard class of the cargo. A placarded vehicle must have at least four identical placards. They are put on the front, rear and both sides of the vehicle (see Figure 9-3 below).

Placards must be readable from all four directions. They are 10 3/4-inches square, square-on-point, in a diamond shape. Cargo tanks and other bulk packaging also display the ID number of their contents on placards, or orange panels or white square-on-point displays that are the same size as placards, and placed near the placards.

Placards —

Placards are used to warn others of hazardous materials. Placards are signs put on the outside of a vehicle that identify the hazard class of the cargo. A placarded vehicle must have at least four identical placards. They are put on the front, rear and both sides of the vehicle (see Figure 9-3 below).

Placards must be readable from all four directions. They are 10 3/4-inches square, square-on-point, in a diamond shape. Cargo tanks and other bulk packaging also display the ID number of their contents on placards, or orange panels or white square-on-point displays that are the same size as placards, and placed near the placards.

Lists of Regulated Products —

There are three main lists used by shippers, carriers and drivers when identifying hazardous materials. Before transporting a material, look for its name on three lists. Some materials are on all lists, others on only one. Always check the following lists:

• Section 172.101: Hazardous Materials Table
• Appendix A to Section 172.101: List of Hazardous Substances and Reportable Quantities
• Appendix B to Section 172.101: List of Marine Pollutants

Column 1 –

Six different symbols may appear in Column 1

Column 1 –

Six different symbols may appear in Column 1:

• (+) 1. Fixes the proper shipping name, hazard class and packing group to use, even if the material does not meet the hazard class definition.
• (A) 2. Means the hazardous material described in Column 2 is subject to the HMR only when offered or intended for transport by air unless it is a hazardous substance or hazardous waste.
• (D) 3. Means the proper shipping name is appropriate for describing materials for domestic transportation, but may not be proper for international transportation.
• (G) 4. Identifies the proper shipping names for which one or more technical names of the hazardous material must be entered in parentheses in association with the basic description.
• (I) 5. Identifies a proper shipping name that is used to describe materials in international transportation. A different shipping name may be used when only domestic transportation is involved.
• (W) 6. Means the hazardous material described in Column 2 is subject to the HMR only when offered or intended for transportation by water unless it is a hazardous substance, hazardous waste.

Column 1 –

Six different symbols may appear in Column 1:

• (+) 1. Fixes the proper shipping name, hazard class and packing group to use, even if the material does not meet the hazard class definition.
• (A) 2. Means the hazardous material described in Column 2 is subject to the HMR only when offered or intended for transport by air unless it is a hazardous substance or hazardous waste.
• (D) 3. Means the proper shipping name is appropriate for describing materials for domestic transportation, but may not be proper for international transportation.
• (G) 4. Identifies the proper shipping names for which one or more technical names of the hazardous material must be entered in parentheses in association with the basic description.
• (I) 5. Identifies a proper shipping name that is used to describe materials in international transportation. A different shipping name may be used when only domestic transportation is involved.
• (W) 6. Means the hazardous material described in Column 2 is subject to the HMR only when offered or intended for transportation by water unless it is a hazardous substance, hazardous waste.

Column 2 –

Lists the proper shipping names and descriptions of regulated materials. Entries are in alphabetical order so you can more quickly find the right entry. Use the name of the material from the shipping paper. The table shows proper shipping names in Roman type. The shipping paper must show proper shipping names. Names shown in italics are not proper shipping names.

Column 3 –

Shows a material’s hazard class or division, or the entry “Forbidden.” Never transport a “Forbidden” material. Placard shipments are based on the quantity and hazard class. You can decide which placards to use if you know these three things:

• Material’s hazard class.
• Amount being shipped.
• Amount of all hazardous materials of all classes on your vehicle.

Column 3 –

Shows a material’s hazard class or division, or the entry “Forbidden.” Never transport a “Forbidden” material. Placard shipments are based on the quantity and hazard class. You can decide which placards to use if you know these three things:

• Material’s hazard class.
• Amount being shipped.
• Amount of all hazardous materials of all classes on your vehicle.