Washington has banned the trade and sale of shark fins.

The Seattle Times is reporting that Washington’s Governor Chris Gregoire has signed a shark fin ban into law. Senate Bill 5688 prohibits the sale or trade of shark fins or shark fin derivatives in the state. The bill passed unanimously in the state Senate and by a vote of 95 to 1 in the House.

Shark fins are primarily used for shark fin soup. The practice of shark finning can involve cut the fins off of live sharks and dumping the rest of the animal back into the sea to drown. Supporters of the bill hope that it will reduce pressure on the world’s shark populations.