Airlines using Boeing's 737 Max will have to get FAA approval for pilot training programs and complete required maintenance.
Those in charge didn't necessarily understand everything about the plane's design or the safety lapses.
Air safety regulators say Boeing can start test flights of its grounded 737 Max jets.
The aircraft maker has continued to pump out the beleaguered planes, even though it can't deliver them.
The longer the company's 737 Max jet stays grounded, the more impact Boeing suppliers and customers feel.
Boeing's 737 Max jets have been grounded since March. The repercussions are starting to add up for the plane maker and its airline customers.
The problem appears to be related to how pilots can control the jet if the system that automatically pushes its nose down malfunctions.
The entire fleet remains grounded in the U.S.
China's swift move to ground its Boeing 737 Max fleet suggests it is eager to be seen as a world leader on regulation and safety standards.
"It's the rest of the world against the FAA right now," said Jon Ostrower, editor-in-chief of The Air Current.