This past January, NOAA released a landmark final rule (referred to here as the Gulf Plan) establishing a permitting and regulatory framework for offshore aquaculture—fish farming—in federal waters in the Gulf of Mexico. Since the Gulf Plan is the first rule to enable aquaculture in federal waters (3-200 miles offshore), the environmental and economic outcomes are uncertain. This ruling—the product of over a decade of research and revision—has become the subject of intense criticism from both environmental organizations and proponents of offshore aquaculture. NOAA lauds the ruling as a long-overdue policy to create economic growth and meet demands for sustainable seafood. At the same time, some environmentalists predict increased pollution and fish disease, fishermen fear price drops, and potential investors think the regulation is overly complex.