Offshore vessels in the Gulf of Mexico have become more energy efficient in recent years and are polluting less because of changes in engines, bunker fuels and building materials. At the same time, Gulf of Mexico builders have responded to meet new regulations, customer needs. At Harvey Gulf International Marine in New Orleans, Environmental Compliance Coordinator Nicole Eddlemon said “adoption of energy-saving vessels in the U.S. is driven by North American Emission Control Area or ECA regulations, initiated by the Obama Administration and the U.S.