Andrew Frederick Johnson, a postdoctoral researcher at the Center for Marine Biodiversity and Conservation at Scripps Institution of Oceanography at UC San Diego, and colleagues assess the challenges poorer countries face in complying with U.S. rules about imported seafood in a letter appearing in the March 10 issue of the journal Science. Inability to comply with regulations could lead to economic losses in poorer regions of Southeast Asia and elsewhere and could spur overfishing as fisheries seek out new markets. Johnson is also a member of the Gulf of California Marine Program at Scripps.