HAZWOPER 8 HOUR FRESHER TEST KEY TERMS

HAZWOPER 8 HOUR FRESHER TEST KEY
TERMS 2026-2027




DOT Class 1
Explosive




DOT Class 2
Compressed Gases ( cylinders )




DOT Class 3
Flammable liquids (FP < 140 degrees F)




DOT Class 4
Flammable Solids




DOT Class 5
Oxidizers

,DOT Class 6
Poison Solids & liquids




DOT Class 7
Radioactive




DOT Class 8
Corrosives




DOT Class 9
Miscellaneous




Manufacturers Label Contains:
Product name, Chemical names, Hazards, Precautions, Storage Info, etc.




DOT Hazard Class Labels Hazardous Materials Identification System (HMIS)
RED, BLUE, ORANGE, WHITE

,HMIS Red
Flammability Rating




HMIS Blue
Health Hazard Rating




HMIS Orange
Physical Hazard Rating




HMIS White
Special Hazard Rating




National Fire Protection Association (NFPA) Labels
RED, BLUE, YELLOW, WHITE




NFPA Red
Flammability rating




NFPA Blue

, Health Hazard Rating




NFPA Yellow
Instability Hazard Rating




NFPA White
Special Hazard Rating




Placards Identify:
The hazard class of the material and in some cases identify the DOT identification
number or UN Number




What weight of hazardous materials requires the vehicle to display placards on all
four sides?
1000+Lbs




Other factors, which may indicate hazardous substances
Locations, Colors, Container type or shape




Safety Data Sheet (SDS)