The Federal Aviation Administration is ordering flight schedule reductions at Newark Liberty International Airport (EWR) amid ongoing air traffic control challenges and runway construction.

The Federal Aviation Administration said on Tuesday it would require flight cuts at Newark, one of the main airports serving New York City, after it met with U.S. airlines to address congestion issues following a series of major disruptions.

At one point, the FAA had targeted 77 total arrivals and departures at Newark each hour, but at the start of construction on April 15 they requested airlines cut that down to 70 total during the day and 62 during specific hours in the late afternoons and evenings.