Ohio Revised Code Title XXXVII. Health Safety Morals § 3743.80

(A) The manufacture, sale, possession, transportation, storage, or use in emergency situations, of pyrotechnic signaling devices and distress signals for marine, aviation, or highway use;

(B) The manufacture, sale, possession, transportation, storage, or use of fusees, torpedoes, or other signals necessary for the safe operation of railroads;

(C) The manufacture, sale, possession, transportation, storage, or use of blank cartridges in connection with theaters or shows, or in connection with athletics as signals or for ceremonial purposes;

(D) The manufacture for, the transportation, storage, possession, or use by, or sale to the armed forces of the United States and the militia of this state, as recognized by the adjutant general of Ohio, of pyrotechnic devices;

(E) The manufacture, sale, possession, transportation, storage, or use of toy pistols, toy canes, toy guns, or other devices in which paper or plastic caps containing twenty-five hundredths grains or less of explosive material are used, provided that they are constructed so that a hand cannot come into contact with a cap when it is in place for explosion, or apply to the manufacture, sale, possession, transportation, storage, or use of those caps;

(F) The manufacture, sale, possession, transportation, storage, or use of novelties and trick noisemakers, auto burglar alarms, or model rockets and model rocket motors designed, sold, and used for the purpose of propelling recoverable aero models;

(G) The manufacture, sale, possession, transportation, storage, or use of wire sparklers.

(H) The conduct of radio-controlled special effect exhibitions that use an explosive black powder charge of not more than one-quarter pound per charge, and that are not connected in any manner to propellant charges, provided that the exhibition complies with all of following: