April 17, 2026 — April 13 marked the 50th anniversary of the U.S. Magnuson-Stevens Act (MSA), a landmark conservation law credited with saving numerous U.S. fisheries from collapse and protecting vital ocean habitats. Despite decades of success, conservationists warn that recent federal funding cuts could undermine those gains.
The MSA was passed in 1976, in the same decade the Environmental Protection Agency was established, and half a dozen bedrock environmental laws like the Clean Air and Clean Water acts were enacted. It was a time of widespread environmental degradation: Ohio’s Cuyahoga River frequently caught fire and smog choked cities like Los Angeles.
U.S. fisheries were in a similarly dire state. “Fishing off the U.S. coast was a free-for-all, with vessels from both the U.S. and other nations racing to catch as many fish as they could,” Gib Brogan, fisheries campaign director at the advocacy organization Oceana, told Mongabay in an email.
Before the MSA was enacted, international waters began just 19 kilometers (12 miles) from shore. Beyond that, both American and international fishing fleets could operate with very few regulations. It was a classic example of the tragedy of the commons; fishers were incentivized to capture as many fish as they possibly could before the fish were gone.