: Trucks and cargo containers carrying these fuels must display a red UN 1203 placard .
The use of the .zip extension has recently become a notable cybersecurity concern due to the launch of the . Flammable Liquid Placard, UN 1203, Aluminum - Labelmaster 1203 Logs .zip
The number is a Department of Transportation (DOT) hazard code used to identify Class 3 flammable liquids, specifically gasoline, gasohol, or petrol . : Trucks and cargo containers carrying these fuels