When is one allowed to be Mavier Sedrah this week for Parshas Bereishis?
Answer:
As with every year, one can only begin shnayim mikra of Bereishis after the reading of Bereishis on Simchas Torah.
Although some write that one should preferably wait for the day after Simchas Torah, this year there is little time, and therefore it is recommended to begin on Simchas Torah itself.
Please see here for more details.
Best wishes.