Boeing Co. got an approval from Federal Aviation Administration to have its grounded 737 MAX aircraft back to service.
According to FAA Administrator Steven Dickson, he was "100% confident" in the safety of the aircraft.
The 737 MAX was grounded in March of 2019 following fatal crashes in Ethiopia and Indonesia that killed 346 people.
"We will never forget the lives lost in the two tragic accidents that led to the decision to suspend operations," said CEO David Calhoun. "These events and the lessons we have learned as a result have reshaped our company and further focused our attention on our core values of safety, quality and integrity."
The FAA's directive mentions requirements such as installing new flight control computer (FCC) software, revising the existing Airplane Flight Manual (AFM) to incorporate new and revised flightcrew procedures, installing new MAX display system.