Great Lakes Mass Marking Program Act of 2025

HR 1917, the Great Lakes Mass Marking Program Act of 2025, establishes a federal program within the U.S. Fish and Wildlife Service to mass-tag hatchery-reared fish in the Great Lakes. The program directly affects federal, state, and tribal fisheries agencies by providing data on hatchery fish versus wild fish populations through automated tagging. Key provisions authorize $5 million annually (2026-2030) to purchase tagging equipment, hire staff, and share collected data with partner agencies to inform management decisions about fish stocking, habitat restoration, and balancing predator-prey relationships. This data supports the economic stability of the Great Lakes fisheries sector, which contributes over $7 billion annually to the regional economy.