No
Short answer: Never. Soak used fireworks first, and call the fire marshal or police for anything live.
Prince William County Fire Marshal says to soak spent or dud fireworks and sparklers in a large bucket of water for at least 20 minutes or overnight, and to contact the Fire Marshal for illegal fireworks. Dumpsters.com prohibits reactive and explosive waste.
Soaked, spent consumer fireworks can be bagged per local guidance. Unused or illegal ones go to the fire marshal or police.
Checked October 2026. Rules change; your hauler's prohibited-items list is the final word.