The United kingdom authorities has banned flares, smoke bombs, fireworks, and a wide swath of other pyrotechnics from music festivals across England and Wales. As NME factors out (by means of legal professionals at VHS Fletchers and Kingsley Napley), “pyrotechnic articles” of all forms are banned. (Matches are not.) The law carries a possible high-quality and/or jail sentence of up to a few months, which could rise to up to 51 weeks if put together with an additional offense. A pyrotechnic is described as “an post that consists of explosive substances, or an explosive combination of substances, designed to create heat, light, sound, gasoline or smoke, or a combination of this sort of consequences, by way of self-sustained exothermic chemical reactions.”
The United States does not have a federal law regarding pyrotechnics at new music festivals. Specific events may ban audience associates from bringing them, but each and every state has distinct rules regarding fireworks possession.