Transportation Secretary Sean Duffy announced 40 major airports would face a 10% cut in flights. See the full list of impacted airports.

The now longest ever government shutdown has air travel strained; with TSA and airport workers going without pay. Starting on Friday, the administration is reducing air traffic at forty of the country’s “highest volume” markets.

The Federal Aviation Administration will reduce flight capacity by 10% at 40 major airports across the country, officials announced during a press conference on Wednesday. The restrictions will go into effect Friday morning, FAA Administrator Bryan Bedford and Transportation Secretary Sean Duffy said.

The Federal Aviation Administration will reduce air traffic at many busy airports to maintain safety during the government shutdown, which has led to staffing shortages of air traffic controllers.

The Federal Aviation Administration announced on Wednesday that it would cut 10% of air traffic at 40 of the country’s busiest airports beginning Friday, a move that could lead to the cancellation of thousands of flights nationwide.

The FAA announced plans to reduce air traffic capacity by roughly 10% at 40 major U.S. airports as the government shutdown strains air travel.