The approval allows Energy Transfer Partners to begin partial service at the compressor station in Carroll County in eastern Ohio.
It will be one of 10 along the natural gas pipeline’s route in Ohio, Pennsylvania and West Virginia.
About 213 miles of the pipeline from Cadiz in eastern Ohio to Defiance in northwest Ohio and along two laterals were put into service on Aug. 31.
Constructing the 125-mile pipeline from Defiance north into Michigan and east into Ontario is continuing. That project is expected to be in service by the end of first quarter 2018, ETP said.
The 711-mile twin pipeline will carry natural gas from the Marcellus and Utica shales to the Midwest, Canada and the Gulf Coast. The $4.2 billion pipeline will move up to 3.25 billion cubic feet per day from Ohio, West Virginia and Pennsylvania.