Always Prohibited in USPS® Networks

Row 1

Class 1 Explosive 1 with two asterisks, and starburst graphic on orange field.

Class 1 Explosive 1.4 with one asterisk on orange field.

Class 1 Explosive 1.5 with one asterisk on orange field.

Class 1 Explosive 1.6, and one asterisk on orange field.

Class 2 Flammable Gas 2 with flame graphic on red field.

Row 2

Class 2 Non-Flammable Gas 2 with pressurized tank graphic on green field.

Class 2 Inhalation Hazard 2 with skull and crossbones graphic on black background above white field.

Class 2 Poison Gas 2 with skull and crossbones graphic on white field.

Class 2 Toxic Gas 2 with skull and crossbones graphic on white field.

Class 2 Oxygen 2 with circle flame graphic on yellow field.

Class 3 Flammable Liquid 3 with flame graphic on red field.

Row 3

Class 4 Flammable Solid 4 with flame graphic on red and white striped field.

Class 4 Spontaneously Combustible 4 with flame graphic on white background top white split field, bottom red.

Class 4 Dangerous When Wet 4 with flame graphic on light blue field.

Class 6 Inhalation Hazard 6 with skull and crossbones graphic on black background above a white field.

Class 6 Poison 6 with skull and crossbones graphic on white field.

Class 6 Toxic 6 with skull and crossbones graphic on white field.

Class 6 Infectious Substance - In Case of Damage or Leakage Immediately Notify Public Health Authority 6 with biohazard symbol on white field.

Row 4

Class 7 Radioactive I with a radiation symbol on white field.

Class 7 Radioactive II with a radiation symbol on a yellow background on white field.

Class 7 Radioactive III with a radiation symbol on a yellow background on white field.

Class 9 lithium batteries with black and white vertical bars above and batteries and flames below on white field.

Row 5

Caution! Do not load or transport package if damaged; lithium battery; visual-broken glass, batteries, flame graphics on white field.

Consumer Commodity - ORM-D-Surface Only on black field; lithium battery

Cargo Aircraft Only Forbidden in Passenger Aircraft; visual-exaggerated hand extended from aircraft to prevent packages from being loaded on orange field.

Class 6 Etiologic Agents Biomedical material in case of damage or leakage notify director, CDC Atlanta GA 6 with biohazard symbol. Red and white label.