- Fireworksland.com Classifications of fireworks in the U.S. Copyright 2002 by Bob Weaver. Welcome to Fireworksland.com. Be sure to visit my home page. The United States government, and many of the states of the U.S., categorizes fireworks into several different classifications. You may have heard some of these terms before, and this page is an attempt to sort them out and make the whole mess a ...fireworksland.com/html/classifications.html