Indiana Code Title 22. Labor and Safety § 22-11-14.5-1

Sec. 1. As used in this chapter, “indoor pyrotechnics” means controlled exothermic chemical reactions that are timed to create the effects of heat, gas, sound, dispersion of aerosols, emission of visible electromagnetic radiation, or a combination of these effects to provide the maximum effect from the least volume (as provided in National Fire Protection Association Standard 1126 (2001 edition)). The term does not include the following novelties and trick noisemakers: