“Transport Canada aims to move in collaboration globally with our aviation partners, including EASA,” the agency said in a statement on Thursday. “The department prioritizes global confirmation that the aircraft is safe to fly.”

The Chinese aviation authorities and regulators from other emerging markets could be holdouts. They appear more likely to insist that their pilots — many of whom have less experience than their American, European and Canadian counterparts — train on simulators, according to a person briefed on the discussions.

Boeing has told its airline customers that the Chinese regulator is the biggest wild card. China was the first nation to ground the Max after the Ethiopian Airlines crash in March, citing concerns over whether pilots could manually control the plane if it ran into problems.

Delaying its approval for the Max could also provide China leverage in the trade war with the United States. Boeing aircraft are one of the largest American exports to China by dollar value, and an obvious target for officials in Beijing if they want to further retaliate.

The divergent views about the need for simulator training point to a growing debate within the global aviation community over the capabilities of pilots from various countries.

The F.A.A. tends to make decisions based on the experience of the average pilot in the United States, many of whom have more flight time than those in emerging markets. Unions representing pilots at Southwest and American Airlines, which fly the Max, have said that they do not believe that the agency should mandate time in a simulator.

But there is broader pressure on the F.A.A. to reconsider whether it needs to modify its standards to account for less-experienced pilots. Boeing is selling more and more aircraft in emerging markets as global air travel continues to expand.