It is illegal to discharge a firearm or cannon at a wedding.

The Law Explained

Firing a gun, cannon, or any explosive device during a wedding ceremony or reception is specifically banned under older public safety statutes. In the 18th and 19th centuries, it was a common rural custom to celebrate nuptials by shooting off muskets or small cannons, which frequently resulted in tragic accidental injuries. Today, throwing rice is the only approved projectile.