© Photo by Ralph Orlowski/Getty Images Fireworks that fly or explore are illegal in Minnesota. Some types of fireworks are legal in Minnesota, thanks to a law passed in 2002. Some types of fireworks are legal in Minnesota, thanks to a law … Some types of fireworks are legal in Minnesota, thanks to a law passed in 2002. Minnesota Statutes 624.22, Subd 1 (2) (d) requires the operator of a facility to make application for an indoor fireworks display permit to the State Fire Marshal at least 15 days in in advance of the date of any performance, show or event which will include the discharge of fireworks inside a building or structure.