This DOT placard is serious business for anyone transporting hazardous materials. The bright red diamond-shaped sign measures 10.75x10.75 inches with the number 1863 and a flame symbol, which specifically indicates Hazard Class 3 for flammable liquids like fuel and aviation fluids. It's made from durable 4-mil vinyl with a moisture-resistant acrylic adhesive backing that sticks securely to vehicles, containers, or storage areas. The non-glare matte surface is UV protected, so it stays readable in all weather conditions without reflecting sunlight. What's impressive is the temperature resistance - this placard holds up in extreme conditions from -40°F to 176°F, which covers pretty much any environment you might encounter. The application is super easy thanks to the scored peel-off liner that lets you position it perfectly before committing. This isn't just a suggestion - it's actually required by Department of Transportation regulations (§172.544) for proper hazard communication during transport. AccuformNMC has been making safety products for 90 years and these are proudly made in the USA with that quality craftsmanship they're known for. Whether you're in trucking, aviation, or any industry handling flammable liquids, having the correct placards isn't just about compliance - it's about keeping everyone safe by clearly communicating potential dangers.