• The IATA DGR requires packaged dangerous good be labeled with identifying information and handling instructions.
• There are also specialized markings (limited quantity, orientation arrows, environmentally hazardous substance, and lithium battery) that are necessary.

Section 7 of the International Air Transport Association Dangerous Goods Regulations (IATA DGR) contains marking and labeling requirements for transportation by air.

For most packages, markings and labels must be placed on one side of the package. However, orientation arrows must be placed on two opposite sides of the package. Unless otherwise stated, the outside of each package must be durably and legibly marked with the:

• Proper Shipping Name,
• United Nations Identification (UN/ID) Number,
• Full name and address of the shipper,
• Full name and address of the consignee, and
• Net quantity.

Additionally, the IATA DGR requires certain packages to contain the following markings:

• Limited quantity (Y) – Required for packages shipped as limited quantity;
• Orientation arrows – Required with combination packages containing liquids;
• Environmentally hazardous substance – Required on packages containing environmentally hazardous substances; and
• Lithium battery – Required on packages containing certain lithium batteries.

Section 7 of the IATA DGR lists two types of labels: hazard labels and handling labels. The hazard labels must be used to display the materials hazard class. The handling labels indicate precautions to be taken when handling or storing the dangerous goods. Handling labels include:

• Magnetized material,
• Cargo aircraft only,
• Cryogenic liquids, and
• Keep away from heat.

Labels must be securely affixed on a package with a contrasting background. All the dangerous goods markings and labels must be visible and legible. They must not be obscured by any text, stickers, tape, or other material.