Hi everyone! I'm pursuing this pilot credit for a LEED v4 NC office building. The ventilation system and equipment have been carefully designed, so the ventilation rates are above the minimum required by ASHRAE 62.1-2016 or later. In order to prove that, my plan is to submit the excel file with the calculations of ventilation rates. Would it be documentation enough to justify it?

And now comes my second question: if I meet the requirement #1b filtration (with air filters MERV 13 or above), do I have to submit the calculations for air changes per hour for occupied spaces? As it is an alternative option for #1b, I think I do not have to do it, but I would like to have some feedback from your experience.

Thank you!