The FAA today published a final rule that allows student pilots to log up to 20 hours in flight simulators, finally reaching the end of a long and twisted regulatory path. The current rules allow only 10 hours to be logged, although many flight schools had permission from the FAA to log up to 20. The FAA tried to go straight-to-final-rule with the change in December 2014, but had to start over with the rule-making process when two commenters filed objections. The new rule takes effect May 12.
Source: avwebFAA Increases Sim-Time Limit