President Donald Trump nominated Republic Airways CEO Bryan Bedford to head the Federal Aviation Administration.

The FAA has been without a confirmed leader since former FAA head Mike Whitaker resigned on Jan. 20. Chris Rocheleau has been serving as acting head of the agency.

“As the former President and CEO of Republic Airways, Mesaba Airlines, and Business Express Airlines, Brian brings over three decades of experience in Aviation and Executive Leadership to this critical position. Bryan will work with our GREAT Secretary of Transportation, Sean Duffy, to strongly reform the Agency, safeguard our exports, and ensure the safety of nearly one billion annual passenger movements. Congratulations Bryan!” Trump wrote.

The lack of a confirmed FAA head has come under heavy scrutiny, particularly after the Jan. 29 collision of a civilian airliner and Army Black Hawk helicopter over Washington, D.C., which killed 67 people. It was the deadliest U.S. commercial plane crash since 2009.

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The U.S. air travel industry has been struggling with a shortage of air traffic controllers and outdated technology.

Bedford is a respected figure in the airline industry, having transformed Republic Airways from a carrier with just $90 million in revenue in 1999 to one with more than $1.2 billion in 2016, the New York Times reported.