Answer: hazmat

AnswerCrossword Clue
HAZMATSuit portmanteau
HAZMATStuff that might be banned in the HOV lane
HAZMATFreight not permitted in some tunnels, familiarly
HAZMATTrucking specialty
HAZMATStuff often covered with diamonds
HAZMATDangerous cargo
HAZMATDangerous cargo, for short
HAZMATFrightful freight, for short
HAZMATDangerous cargo, in modern lingo
HAZMATEcological disaster team
HAZMATDangerous stuff, to the DOT
hazmata material (as flammable or poisonous material) that would be a danger to life or to the environment if released without precautions
hazmathazardous material