RALEIGH, N.C. (AP) — Another state permit needed for a proposed natural gas pipeline in eastern North Carolina is being slowed.

The state Department of Environmental Quality asked Atlantic Coast Pipeline developers this week for more information for an air quality permit for a compressor station to push gas downstream. The News & Observer of Raleigh reports a Dec. 15 permit issuance deadline has been suspended. That permit decision now depends on sending and reviewing the information.

The department already has submitted four rounds of questions to pipeline builders over a water quality permit.

Dominion Energy and other utilities want to build the 600-mile (965-kilometer) pipeline from West Virginia into Virginia and North Carolina, with construction slated for early 2018. A Dominion spokeswoman says the air permit delay won't affect that schedule.

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Information from: The News & Observer, http://www.newsobserver.com