The federal government has given Dominion Cove Point LNG permission to export liquefied natural gas, the first time an East Coast facility has been awarded an export permit.

The project in Calvert County, Md., will cost $3.4 billion to $3.8 billion and is expected to be in operations in early 2017. Dominion Cove’s permit allows the facility to export 6.3 million tons of LNG per year.

The U.S. Federal Energy Regulatory commission has approved three other LNG export terminals: the Sabine Pass Liquefaction Project and Cameron LNG in Cameron Parish, and the Freeport LNG Project in Texas.