Hazmat Warning - Hazardous Material Clothing, Apparel, and Gear

U.S. Department of Transportation - FMCSR

The DOT rules for transporting hazardous materials are contained in a delightful little 300 plus page document It's very large and clicking on it will open a new window.

Class 1 - Explosives These are orange and black and contain a warning graphic, and an alphanumeric code (1.1 to 1.6). The domestic (U.S.) version also carries a legend like EXPLOSIVES or BLASTING AGENTS. These placards, printed on shirts, can be used unmodified to effectively identify people with tempermental issues, for example, those who not only "don't play well with others," but tend to hack people they disagree with to death.
Class 2 - Compressed Gases These include a white on red "FLAMMABLE GAS with a fire graphic, a black on white INHALATION HAZARD with a skull graphic, and a white on green NON-FLAMMABLE GAS with a tank graphic. These placards can be used to effectively identify people who are pompous windbags or who are just slightly more flatulent than most.
Class 3 - Flammable Liquids These are white on red with legends like FLAMMABLE, COMBUSTIBLE, GASOLINE, and FUEL OIL and carry a fire graphic. These placards, printed on shirts, can be used to identify people with slightly lesser tempermental issues, for example, those who just "don't play well with others." Oh, yeah, and hot chicks, too.
Class 4 - Flammable Solids These are black on read and white and carry legends like FLAMMABLE SOLID, SPONTANEOUSLY COMBUSTIBLE, and DANGEROUS WHEN WET and carry fire graphics. These placards can be used to identify people with tempermental issues or good looking people, especially in the case of DANGEROUS WHEN WET, surfers and lifeguards, and hopefully even wet t-shirt contestants.
Class 5 - Oxidizers These are black on yellow and carry legends like OXIDIZER and ORGANIC PEROXIDE and a fire graphic. ORGANIC PEROXIDE shirts are an excellent way to label blondes, real and otherwise.
Class 6 - Poisons These carry a black skull graphic and black legends like POISON and TOXIC on white backgrounds. The uses for these shirt are obvious, but that dosen't make them any less important.
Class 7 - Radioactive Materials These are black on yellow and white and carry a radiation graphic. These labels don't translate as easily to personal labeling, unless, of course, you have a week end house on the island, Three Mile Island, that is.
Class 8 - Corrosive Liquids These are black on white and carry a corrosive test tube graphic. These shirts can effectively label people whose alcohol use tends to decay relationships and friendships. But remember that these people are a lot of fun when you're drunk, too.
Class 9 - Miscellaneous These include black DANGEROUS legends on a red and white background. Frankly these are no-brainers. Every gang member should have at least one.

For questions, problems and bulk and custom orders (including shirts in other colors) email info@hazmatwarning.com.