If for some reason you needed to make corrections to the ventilation system in order to meet the ventilation prerequisite during the review process, you could do so without having to reset the performance period for all of the performance-based credits like EAp2. Outside air measurements can and must be redone to confirm that the systems meet the prerequisite after the corrections were made.
What if after our Preliminary Review we have to revise the ventilation rate procedure calculations and find that we need to make corrections to the system in order to meet the prerequisite? Can we redo the outside air testing after making corrections? Would we need to update the performance period for all credits accordingly?