Consumer fireworks are officially referred to as UNO 336, 1.4G fireworks by the U.S. Department of Transportation as set out in Title 49 of the Code of Federal Regulations at Sub-Chapter C, Part 173, which, in addition to the definition, contains the standards for the construction and function of consumer fireworks.
Title 49 of the CFR specifically describes Division 1.4 explosives (consumer fireworks) as:
"explosives that present a minor explosion hazard. The explosive effects are largely confined to the package and no projection of fragments of appreciable size or range is to be expected. An external fire must not cause virtually instantaneous explosion of almost the entire contents of the package."
Consumer fireworks were formerly referred to as Class C or common fireworks. All of your Phantom® fireworks products meet or exceed the standards established by the U.S. DOT and the U.S. Consumer Product Safety Commission (CPSC) for UN0 336 1.4G (Class C) consumer fireworks, as well as the additional voluntary standards of the American Fireworks Standards Laboratory (AFSL).