On the international front, Lubchenco increased the number of efforts aimed at addressing overfishing and illegal, unreported and unregulated (IUU) fishing on the high seas. She teamed up with the Commissioner of Fisheries for the European Union, Maria Damanaki to initiate a more serious effort to address illegal fishing and level the playing field for law-abiding fishermen. Lubchenco worked to see international treaties on IUU fishing approved and strengthened the use of science and precaution in making decisions by regional fishery management organizations. Specifically, during her tenure as NOAA Administrator, the Port State Measures Agreement (PSMA) to Prevent, Deter, and Eliminate IUU Fishing through the United Nations Food and Agriculture Organization was finalized and went into effect. As of August 2019, 50 countries have signed the agreement.