Above linked NYT article updated:
There are currently 34 certified Max flight simulators worldwide, according to a person familiar with the matter. Getting pilots trained in the machines, which are designed to replicate emergency scenarios, will add another hurdle for airlines, who have struggled with mounting losses throughout the Max crisis.
Airlines may also be able to use the more than 200 737 NG simulators to conduct the training, though it isn’t clear yet whether that is possible.