Class B explosives included low explosives such as "display fireworks" which were the larger and more powerful fireworks used at most public displays.Class A explosives included high explosives such as dynamite, TNT, blasting caps, packages of flash powder, bulk packages of black powder and blasting agents such as ANFO and other slurry types of explosives.Previous US DOT explosives classifications Įxplosives, including fireworks, were previously divided into three classifications for transportation purposes by the US Department of Transportation (DOT). Experts at handling explosives, called pyrotechnicians, add chemicals for special effects. The tooling is always made of non-sparking materials such as aluminium or brass. Whenever tubes are used in fireworks, at least one end is always plugged with clay to keep both chemicals and burning gases from escaping through that end. They can be made by hand, most firework factories use machinery to manufacture tubes. Class 1.4S (Minor Explosion Hazard Confined To Package: Packed As To Not Hinder Nearby Firefighters) UN0432 ARTICLES, PYROTECHNIC for technical purposes (Proximate Pyrotechnics)įireworks tubes are made by rolling thick paper tightly around a former, such as a dowel.Class 1.4G (Minor Explosion Hazard Confined To Package:Pyrotechnics) UN0431 ARTICLES, PYROTECHNIC for technical purposes (Proximate Pyrotechnics).Class 1.4S (Minor Explosion Hazard Confined To Package: Packed As To Not Hinder Nearby Firefighters) UN0336 Fireworks (Consumer or Common Fireworks).Although some firecracker items may be called " M-80s", " M-1000s", " Cherry bombs" or " Silver Salutes" by the manufacturer, they must contain less than 50 milligrams of flash or other explosive powder in order to be legally sold to consumers in the United States. Ground spinners, pinwheels and helicopters.Reloadable aerial shells 1.75" or less sold in a box with not more than 12 shells and one launching tube.Class 1.4G (Minor Explosion Hazard Confined To Package:Pyrotechnics) UN0336 Fireworks (Consumer or Common Fireworks) Most popular consumer fireworks sold in the US.Any aerial salute with over 130 milligrams of explosive composition.Any Roman candle or rocket with over 20 grams of pyrotechnic composition.Any single-shot or reloadable aerial shell/mine/comet/tube with over 60 grams of pyrotechnic composition.Any reloadable aerial shells over 1.75" diameter.Any multiple tube fountains with over 500 grams of pyrotechnic composition and without 1/2" space between each tube.Multi-tube devices containing over 500 grams of pyrotechnic composition and without 1/2" space between each tube.Torpedoes (except for railroad signaling use).Any ground salute device with over 50 milligrams of explosive composition.Class 1.3G (Fire, Minor Blast:Pyrotechnics) UN0335 Fireworks (Most Display Fireworks) Current federal law states that without appropriate ATF license/permit, the possession or sale of any display/professional fireworks is a felony punishable by up to 5 years in prison.Class 1.2G (Projection but not mass explosion:Pyrotechnics) UN0334 Fireworks (Rarely used).Class 1.1G (Mass Explosion Possible:Pyrotechnics) UN0333 Fireworks (Salutes in bulk or in manufacture).Class 1.1G (Mass Explosion Possible:Pyrotechnics) UN0094 Flashpowder. For example, common consumer fireworks are UN0336, or Shipping Class 1.4G UN0336. It also must have a UN Number that exactly describes the material. Being Shipping Class 1.4, they can now be sold to the general public and are unregulated by the BATF.Ī code number and suffix (such as 1.3G) is not enough to fully describe a material and how it is regulated, especially in Shipping Class 1.4G. This allows some hazardous items that would have previously been classified as Class B and regulated to be classified as Shipping Class 1.4 due to some packaging method that confines any explosion to the package. The BATFE and most states performed a direct substitution of Shipping Class 1.3 for Class B, and Shipping Class 1.4 for Class C. government now uses the United Nations explosives shipping classification system, which is based on hazard in shipping only, while the old US system also covered use hazards. The United States government has classified fireworks and similar devices according to their potential hazards.
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