The $9bn to $10bn three-train natural gas liquefaction facility will be able to export 12 million tonnes of LNG per annum or 1.7 billion cubic feet per day (bcfd).
Sempra Energy CEO and chairman Debra L Reed said this is a landmark project that will bring economic prosperity and create thousands of jobs in Louisiana.
"Today’s approval is another important step in delivering natural gas to America’s trading partners abroad," Reed added.
Sempra LNG president Octavio MC Simoes said they are pleased to have reached this important milestone successfully and to be one step closer to starting construction later this year.
"The broad support and positive feedback from the community has been an integral part of our success in the developing and permitting of the project," Simoes added.
The latest approval follows the recent conditional approval from the US Department of Energy (DOE) to export LNG to non-free-trade-agreement (non-FTA) countries including Japan and European nations.
