But in most states, the age requirement to purchase fireworks is 18. This includes: Alaska, Arizona, Delaware, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kentucky, Maryland, Minnesota, Montana, New York, Ohio, South Dakota, Virginia, West Virginia and Vermont.

ABC News' Dr. Darien Sutton shares essential safety advice, from fireworks to barbecues to road travel, as more than 45,000 people visit the ER between July 4 and 5, more than any other time of year.