Hazard Class 3 Combustible Liquid Blank Placards are required by 49 CFR 172.500 for highway, rail and water shipments of hazardous gases liquids. Designed to meet DOT specifications for color and size, these 273mm x 273mm Combustible Liquid Hazard Class 3 Placards may be used domestically as well as internationally. Our DOT placards are printed with durable UV inks that retard peeling, chipping and fading. Sold in packs of 25. Also sold in cases. Case quantity based on material.