 are fireworks that explode in the air, including bottle rockets, firecrackers, aerials like Roman candles, and other sorts of explosives that are launched. It's also illegal to buy them and bring them across state lines. The fire marshal strongly encourages the safe alternative to attend a fireworks show handled by professionals, like the ones we have listed for you at WDEL.com. Mark Fouser, WDEL, Delaware's News Radio. Well, the Biden administration wants to crack down on workplaces that get too hot, especially in the summertime.