The Fighting Foreign Illegal Seafood Harvests Act of 2025, known as the FISH Act, aims to combat illegal, unreported, and unregulated (IUU) fishing, a significant threat to marine ecosystems, the economy, and global food security. This legislation seeks to enhance the United States' efforts in addressing IUU fishing while promoting sustainable fishing practices and protecting U.S. waters. Central to the FISH Act is the establishment of a public "IUU vessel list," which will identify foreign vessels and their owners involved in illegal fishing activities.